Top Open Source Projects using CSS
A curated collection of the 250 best free and open-source projects built using CSS. Discover popular repositories, architecture patterns, and trending software in 2026.
Zola
Apache-2.0Open-source chat application that lets you interact with multiple AI models in one interface, offering flexible conversations and diverse capabilities.
Zulip
Apache-2.0Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.
Zen Browser
MPL-2.0A Firefox-based browser offering enhanced privacy, split views, and extensive customization options for a personalized browsing experience.
Zenblog
AGPL-3.0A minimalist, markdown-based blogging platform designed for developers, featuring syntax highlighting and seamless Git integration.
Your Next Store (YNS)
MITFast, modern e-commerce with instant setup and full customization. Powered by Stripe for seamless transactions.
Yaak
MITA modern API client offering local-only data storage, Git integration, plugin extensibility, and multi-protocol support for developers.
Zellij
MITA terminal multiplexer that organizes your workflow with intuitive layouts, tabs, and panes. Includes batteries for seamless terminal workspace management.
WaveTerm
Apache-2.0Enhance your terminal with AI, file previews, and web browsing. Available on MacOS, Linux, and Windows.
Worklenz
AGPL-3.0Worklenz is a comprehensive project management platform that helps agencies organize tasks, track resources, and boost productivity.
Wraft
AGPL-3.0Complete document lifecycle management with automated generation, approval workflows, e-signatures, and branded templates. Create professional documents at scale.
Synara
MITDesktop coding workspace that connects to AI subscriptions you already have, with parallel agents, worktrees, one-click PRs, and multi-project management.
Comp AI
AGPL-3.0AI-driven compliance platform that automates evidence collection, policy generation, and continuous monitoring across 580+ integrations for SOC 2, ISO 27001, HIPAA, and GDPR.
Tldraw
NOASSERTIONVirtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.
UnKey
NOASSERTIONStreamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.
Tirreno
AGPL-3.0Open-source security framework for threat detection, fraud prevention, and abuse monitoring. Self-hosted solution with built-in dashboard and risk scoring.
Suprascribe
AGPL-3.0Free subscription tracker that automatically scans your email to find recurring charges. Privacy-focused discovery with complete spending overview and management tools.
Reflet
NOASSERTIONCollect feedback, prioritize with AI-powered voting, and share transparent roadmaps. Build products users love with automated triage and seamless integration.
Plasmic
MITOpen-source visual editor for building websites and web apps. Connect to any data source, design custom UIs, and ship production React code without leaving your stack.
Parlant
Apache-2.0A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.
Papermark
NOASSERTIONSecure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.
OpenWebAnalytics
GPL-2.0Open-source web analytics platform offering comprehensive visitor tracking, customizable dashboards, and data ownership for websites and applications.
Open Wearables
MITSelf-hosted health intelligence platform with open algorithms, AI reasoning engine, and zero per-user fees. Connect Apple Health, Whoop, Garmin, Oura, and more.
Openinary
AGPL-3.0Open-source alternative to Cloudinary offering self-hosted media transformation. Works with S3/R2/MinIO. Upload, transform, and deliver images/videos without vendor lock-in.
Orca
MITAgent Development Environment that runs Claude Code, Codex, Gemini, and other CLI agents in parallel across isolated git worktrees, with terminals, browser, diff review, and git tools built in.
OpenSign
NOASSERTIONA powerful, open-source e-signature solution offering customization, integration, and enhanced security for businesses of all sizes.
Notifuse
AGPL-3.0Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.
Mage
Apache-2.0Open-source data pipeline platform for effortless data integration, transformation, and orchestration using Python, SQL, and R.
Mimrai
AGPL-3.0Open source minimalist task management tool with AI companion that filters noise, automates coordination, and guides teams through complexity with calm focus.
Laminar
Apache-2.0Laminar is an open-source platform that helps collect, understand, and utilize data for building high-quality LLM applications.
Maxun
AGPL-3.0Turn any website into structured data using a visual recorder, natural language prompts, or API. Includes proxy rotation, scheduling, and webhook integrations.
LearnHouse
AGPL-3.0Open-source LMS for building and selling courses with a block-based editor, built-in payments, AI tools, analytics, and white-labeling. Self-host or use the cloud.
Langflow
MITBuild, deploy, and iterate on AI agents, RAG applications, and MCP servers using a drag-and-drop visual interface backed by Python.
Inngest
NOASSERTIONSimplify backend processes with event-driven functions, seamless integrations, and powerful debugging tools for developers.
IronCalc
Apache-2.0IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.
Kanri
GPL-3.0Kanri is a free, open-source personal Kanban app that works offline, offering a modern and simple experience while respecting your privacy.
Ikiform
MITBuild beautiful, interactive forms with AI assistance. Open-source alternative to Google Forms with unlimited submissions, advanced analytics, and seamless integrations.
Grist
Apache-2.0A versatile data management platform combining spreadsheet simplicity with relational database capabilities for efficient data organization and analysis.
Inbox Zero
NOASSERTIONAutomates Gmail and Outlook with AI-drafted replies, bulk unsubscribe, cold email blocking, attachment filing, and inbox analytics for individuals and teams.
Flowglad
NOASSERTIONConnects client data across tools, automates recurring accounting workflows, and maintains a self-updating knowledge base with human approval controls.
Fizzy
NOASSERTIONTrack issues, ideas, and projects with a modern kanban board that's fast and straightforward. Free for 1000 cards, then $20/month for unlimited use.
Filestash
AGPL-3.0Filestash is an open-source file manager that integrates with multiple storage backends, authentication systems, and offers customization options.
Firefiles
AGPL-3.0Firefiles is an open-source alternative to Dropbox that lets you manage files across multiple cloud storage providers through a single interface.
draw.io
Apache-2.0Create professional diagrams online or offline with security-first approach. No registration needed. Works with Google Drive, SharePoint, Atlassian, and more.
drawDB
AGPL-3.0Free online database diagram editor with SQL generation. Create ER diagrams, visualize relationships, export scripts, and reverse engineer schemas - no signup required.
Databuddy
AGPL-3.0Get powerful web analytics with zero cookies, 100% GDPR compliance, and full data ownership. Lightweight 3KB script delivers real-time insights without compromising user privacy.
Eigent
Apache-2.0Self-hostable desktop app that runs a coordinated team of AI agents to browse the web, manage files, execute terminal commands, and complete complex workflows.
Contentport
AGPL-3.0Create, schedule & manage Twitter content at scale with AI assistance, beautiful visuals, and multi-account support. Perfect for busy founders.
Comma
AGPL-3.0Free site builder to create a personal website with articles, projects, email capture, and analytics. Open source, fast, and beautifully designed.
Bugsink
NOASSERTIONBugsink offers real-time error tracking with self-hosting capabilities, allowing easy installation and connection to any app using Sentry-compatible SDKs.
Authgear
Apache-2.0Authgear is a managed IAM platform handling authentication, SSO, and user management for B2C and B2B apps, with biometrics, MFA, and zero-trust support.
BleachBit
GPL-3.0BleachBit frees disk space & protects privacy by deleting cache, cookies, history & temp files from Firefox, Chrome & more. Open source for Linux/Windows.
ACI.dev
Apache-2.0Outcome Automation as a Service for professional and financial services firms

LyteNyte Grid
NOASSERTIONHigh-performance React data table with server-side loading, tree data, pivoting, and advanced features. Handles billions of rows with minimal bundle size.
Wraps
NOASSERTIONBuild email templates as React components and automations in TypeScript. Deploy to your AWS account with SES integration. Marketing teams edit content without code.
Woodpecker CI
Apache-2.0Open-source CI/CD platform using Docker containers for pipeline execution. Create multiple workflows, extend with plugins, and enjoy free lifetime access.
Weblate
GPL-3.0Web-based continuous localization platform with version control integration, quality checks, and clean interface. Used by 2,500+ projects in 165+ countries.
Webiny
NOASSERTIONA powerful, scalable platform for building custom websites and apps with serverless architecture, offering flexibility and cost-efficiency.
WebStudio
AGPL-3.0Powerful no-code platform for building responsive websites. Combines visual editing with full HTML/CSS customization.
Warpdrive
MITPipeline management, deal workspace, contacts, and two-way Gmail for BD teams. Runs on your own infrastructure, MIT licensed, no per-seat fees.
Wealthfolio
AGPL-3.0Wealthfolio is a simple, secure desktop app for tracking investments and managing your wealth without compromising data privacy.
Wekan
MITOpen-source Kanban board solution offering visual task management, self-hosting capabilities, and robust security features for teams and individuals.
Voiden
Apache-2.0Offline-first API workspace that unifies specs, docs, tests, and mocks in programmable Markdown blocks. Version control everything in plain text files.
Valour
AGPL-3.0Open-source communication platform with multi-window chat, economy systems, and privacy-first approach. Built by communities for superior performance.
useSend
AGPL-3.0Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.
UserTourKit
MITHeadless React tour library with WCAG 2.1 AA accessibility, TypeScript support, and pre-styled components. Under 8KB gzipped with full customization control.
Pluton
Apache-2.0Free, open-source backup solution with end-to-end encryption. Self-hosted control, supports 70+ cloud providers, automated incremental backups, and zero vendor lock-in.
Memos
MITMemos is a self-hosted, open-source note-taking app built around a private timeline. Write in Markdown, skip the folder setup, and keep your data on your own server.
Typebot
NOASSERTIONDesign, build, and deploy interactive chatbots with a visual editor. Integrate easily and collect data effortlessly.
undb
AGPL-3.0Build and manage custom databases with ease, create type-safe APIs, and develop applications quickly
UnInbox
NOASSERTIONStreamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.
Umami
MITA lightweight, open-source alternative to Google Analytics that respects user privacy and provides valuable insights.
Typemill
MITCreate manuals, documentation, and websites with this markdown-based content management system, with options for ebook conversion.
CRM
MITOpen source CRM with AI agents that read your inbox, enrich contacts and companies, schedule follow-ups, and build new agents from plain-language descriptions.
Trigger
Apache-2.0Open source TypeScript platform for building and deploying AI agents and background workflows with retries, queues, observability, and elastic scaling.
TinaCMS
Apache-2.0A headless CMS that simplifies content management with real-time editing, Git-based workflows, and developer-friendly customization.
Teable
NOASSERTIONOpen-source platform combining powerful database capabilities with a user-friendly spreadsheet interface for efficient data management and collaboration.
Hive
MITA fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs
Tabularis
Apache-2.0Desktop database client for PostgreSQL, MySQL/MariaDB, SQLite, and 14+ more databases, with a built-in MCP server, SQL notebooks, visual query builder, and a plugin system.
Swirl Search
Apache-2.0AI-powered search and RAG platform that connects to 100+ enterprise tools without data migration. Deploy securely on-premises with any LLM.
SWE-agent
MITState-of-the-art AI agent that uses language models like GPT-4o to autonomously solve GitHub issues, fix bugs, and implement features with configurable YAML setup.
Swetrix
AGPL-3.0Privacy-first web analytics with real-time dashboards, session replays, error tracking, A/B testing, and GDPR compliance out of the box. No cookies, no consent banners.
Steel
Apache-2.0Open-source browser API designed for AI agents. Run headless browsers with built-in CAPTCHA solving, proxy support, and session management. Quick setup in under 1s.
StatusScout
NOASSERTIONMonitor website uptime, detect security vulnerabilities, find broken links, and simulate user flows. Get instant alerts when issues arise. Free tier available.
Statusnook
MITA powerful open-source status page system for real-time incident tracking, maintenance updates, and transparent communication with users.
Structr
NOASSERTIONOpen-source low-code platform combining Neo4j graph database, visual schema editor, automatic REST APIs, and page rendering in one self-hosted environment.
Splitpro
MITFree, open-source expense sharing app with multi-currency support, unequal splits, and receipt uploads. Import from Splitwise and enjoy PWA functionality.
Sink
AGPL-3.0A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.
Snapify
AGPL-3.0Effortlessly create, share, and collaborate with screen recordings. Control your data with self-hosting or our secure cloud option.
Slugy
MITOpen-source URL shortener with analytics, custom domains, QR codes, and link-in-bio pages. Create branded short links with detailed tracking insights.
Shelf
AGPL-3.0Simplify asset tracking, boost productivity, and gain real-time insights with our user-friendly, open-source inventory solution.
ShipShipShip
Apache-2.0Self-hostable changelog and roadmap platform with community voting, automated newsletters, and kanban boards. Deploy with Docker in minutes.
Financial Freedom
GPL-3.0Self-hosted alternative to Mint and YNAB for budgeting and building wealth while maintaining full control of your financial data.
Shelve
Apache-2.0Shelve is a comprehensive project management tool designed to streamline workflows and enhance collaboration for developers and teams.
Sendune
MITA comprehensive platform for managing transactional and marketing emails through AWS SES, featuring customer data management, SMS capabilities, and workflow automation.
Screenity
GPL-3.0Capture, annotate, and edit screen recordings with no limits or sign-up required. Completely private and open source.
Scira
AGPL-3.0Scira delivers concise, AI-generated responses to queries using a clean interface and powerful search capabilities.
Rybbit
AGPL-3.0Get next-gen, open-source, and cookieless web analytics. Understand user behavior with session replays, real-time data, and web vitals. GDPR/CCPA compliant.
Rowy
NOASSERTIONA low-code platform for creating robust backends, complete with a spreadsheet UI for easy data management and custom functions.
Refine
MITA React-based framework for rapid development of internal tools, admin panels, and dashboards with powerful data handling capabilities.
Rallly
AGPL-3.0A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.
Ray.so
MITTurn your code into beautiful images. Choose from a range of syntax colors, hide or show the background, and toggle between a dark and light window.
Rakazo
Apache-2.0Run persistent AI bots that sign into your tools, complete tasks autonomously, and ask for approval when needed. Your keys, your model, your infrastructure.
Reflex
Apache-2.0Build, iterate, and deploy full-stack web apps entirely in Python. Reflex combines an AI app builder, a full-stack framework, and one-click deployment in one platform.
Puter
AGPL-3.0Puter is a cloud-based desktop OS you run in the browser, with built-in apps, file storage, and support for hosting web apps and sites.
Quant-UX
GPL-3.0Quant-UX is an open-source tool for creating interactive prototypes, conducting user tests, and analyzing results to improve UX design.
Private Captcha
NOASSERTIONPrivacy-first CAPTCHA service that blocks bots while keeping forms accessible. No puzzles, no tracking, no cookies - just invisible cryptographic protection.
Prefect
Apache-2.0Orchestrate data pipelines, ML jobs, and agent workflows in plain Python with automatic retries, scheduling, and a unified UI for every run across your infrastructure.
PocketBase
MITA lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities.
Postiz
AGPL-3.0Self-hostable social media scheduler that lets you plan, generate, and publish content across 30+ networks with AI assistance, team collaboration, and automation integrations.
pi
MITTerminal-based coding agent with a minimal core, 15+ LLM providers, tree-structured session history, and a TypeScript extension system for building your own workflows.
Payload
MITA powerful, flexible, and developer-friendly content management system that prioritizes customization and scalability.
OSMAnd
NOASSERTIONComprehensive offline navigation app with detailed maps, turn-by-turn guidance, and specialized routing for hiking, cycling, and walking worldwide.
Orgnise
AGPL-3.0A versatile project management platform that combines task organization, team collaboration, and workflow automation in one intuitive interface.
Pagecord
NOASSERTIONPublish blog posts by email, from Obsidian, iA Writer, the web editor, CLI, or API. Includes RSS, email subscribers, analytics, custom domains, and full export.
PairDrop
GPL-3.0Share files instantly between devices using peer-to-peer technology. No registration, installation, or configuration required. Works cross-platform.
Padloc
AGPL-3.0Open-source password manager with end-to-end encryption for passwords, credit cards, notes, and documents. Cross-platform sync with secure sharing capabilities.
OpenWork
NOASSERTIONDesktop app for teams to run AI agents across 50+ LLMs, share skills and MCP servers org-wide, and automate browser tasks with your own keys.
OpenSEO
MITManage keyword research, backlink analysis, competitor monitoring, and rank tracking without expensive SaaS subscriptions. Self-hostable, MIT-licensed, uses DataForSEO.
OpenPanel
AGPL-3.0Open-source analytics platform covering web traffic, custom events, funnels, retention, session replay, and revenue tracking. GDPR-compliant with optional self-hosting.
OpenNotas
NOASSERTIONOpenNotas is a multi-platform, end-to-end encrypted note-taking app that offers simplicity, synchronization, and offline functionality.
OpenCut
MITBrowser-based, open source video editor built for privacy. No installs, no account required, works on any platform.
OpenCode
MITOpen source AI coding agent that works in your terminal, IDE, or desktop app, supporting 75+ LLM providers with no code storage.
Campfire
MITInstall your own group chat system with @mentions, DMs, and mobile support. One-time purchase, no monthly fees. Includes full source code for customization.
Onlook
Apache-2.0Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.
Nuclear
AGPL-3.0Open-source desktop music player for Windows, macOS, and Linux. Search artists and tracks across multiple sources, build playlists, and listen without ads or tracking.
Novu
NOASSERTIONOpen-source platform for building in-app, email, push, SMS, and chat notifications with a unified API, workflow engine, and embeddable inbox component.
Notesnook
GPL-3.0End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.
Drupal
A flexible and extensible content management system for creating dynamic websites and digital experiences
NanoClaw
MITSelf-hosted AI agent that connects to WhatsApp, Telegram, Slack, and a dozen more messaging apps, running each agent in an isolated Docker container with credential injection via a secure vault.
Morphic
Apache-2.0Open-source answer engine that dynamically generates UI components while providing AI-powered responses, combining conversational AI with interactive interfaces.
Midday
AGPL-3.0All-in-one tool for freelancers and small businesses to manage finances, track time, store files, and send invoices efficiently.
Mike
AGPL-3.0Self-hostable alternative to Harvey and Legora with document analysis, contract drafting, tabular review, and reusable workflows. Zero licensing costs, full data control.
Metabase
NOASSERTIONOpen-source business intelligence platform for data exploration, visualization, and sharing. Empowers teams to make data-driven decisions effortlessly.
Mezon
Build your own community space for gaming, chatting, and hanging out with friends worldwide. Customize your environment for the perfect social experience.
Mixpost
MITCreate, schedule, and manage social media content from your own server with no subscription fees or usage restrictions.
MDMA
MITMarkdown Document with Mounted Applications, the open-source format that turns AI responses into interactive documents. Forms, tables, approval gates and charts render straight from the chat, no custom UI per use case.
Mem0
Apache-2.0Adds persistent, searchable memory to AI agents and apps, so they remember user preferences and past interactions across sessions without pipeline changes.
Maybe
AGPL-3.0Personal finance tracker that consolidates accounts, investments, and assets into a single net worth dashboard with goal tracking and projections.
Marble CMS
AGPL-3.0A headless CMS designed for blogs, changelogs, and articles. Features intuitive editor, team collaboration, media management, and API integration.
Manage
AGPL-3.0A self-hosted project management tool offering task management, file sharing, event tracking, and team collaboration features in an intuitive interface.
LosslessCut
GPL-2.0Desktop app for lossless video and audio editing. Cut, trim, merge, and remux files in seconds without re-encoding, using FFmpeg under the hood.
Litlyx
Apache-2.0Track user behavior, custom events, and conversion funnels in real-time with a single line of code, all while maintaining GDPR compliance.
LittleLink
MITOpen source DIY alternative to Linktree with 100+ branded buttons, multiple themes, and optimized performance. No frameworks or JavaScript required.
Linkwarden
AGPL-3.0Open-source platform to collect, organize, and preserve webpages with powerful collaboration features
Linky
MITBuild a dynamic link-in-bio page with a drag-and-drop editor. Integrate platforms to showcase live content and connect with your audience.
Lightdash
NOASSERTIONSelf-serve analytics platform that transforms dbt models into interactive dashboards, enabling data-driven decisions across organizations.
LimeSurvey
NOASSERTIONLimeSurvey is a powerful open-source tool for creating customizable online surveys, polls, and questionnaires.
Linkding
MITMinimal, fast bookmark manager with automatic metadata fetching, archiving, multi-user support, and browser extensions. Easy Docker setup with SQLite.
Linguist
BSD-3-ClauseFull-featured browser extension for translating web pages, text, and subtitles with offline mode, personal dictionary, and custom translator support.
LibreChat
MITChat with multiple AI providers through a single self-hostable interface, with support for custom agents, file uploads, plugins, and multi-user access control.
Languine
MITA developer-focused localization platform that automates translation workflows within your existing development pipeline and CI/CD processes.
LibreTranslate
AGPL-3.0Self-hosted machine translation API that works offline. Download, setup, and run your own translation server in minutes with complete privacy control.
Leantime
AGPL-3.0Open-source software designed to streamline tasks, boost productivity, and enhance collaboration for teams of all types, including those with ADHD and neurodiversity.
Kutt
MITKutt offers a free and open-source solution for shortening URLs, complete with custom domains and detailed analytics.
Langfuse
NOASSERTIONLangfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.
Kener
MITFree, open-source status page and uptime monitor with Docker deployment. Track 11 service types, manage incidents, schedule maintenance, and notify subscribers instantly.
Keep
NOASSERTIONOpen-source platform for centralizing alerts, automating responses, and enhancing incident management across your tech stack.
Kilo
MITOpen source AI coding agent with 500+ models, bring-your-own-key support, and specialized modes for writing, debugging, and planning code across IDEs and CLI.
Khoj
AGPL-3.0Self-hostable AI assistant that connects to your docs and the web, lets you build agents, schedule automations, and run research with verifiable citations.
JumpServer
GPL-3.0Open-source privileged access management solution offering secure, browser-based access to SSH, RDP, Kubernetes, databases and remote applications.
Kaneo
MITSelf-hosted project management platform with visual task management, data privacy, and complete control over customization - built by developers for developers.
Justnote
GPL-2.0Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.
Kanba
MITOrganize projects with intuitive Kanban boards, powered by Supabase backend and Stripe payment processing for complete project management workflow.
itsnotes
MITA self-hosted, open-source note-taking app that keeps the Google Keep sticky-note feel while adding folders, timelines, list views, and import support.
Zen
AGPL-3.0Minimal note-taking app storing Markdown notes in local SQLite database. Features instant search, flexible tagging, keyboard shortcuts, and offline access.
Jellyfin
GPL-2.0Free, open source media server that lets you collect, manage, and stream your personal library to any device, with no fees, tracking, or vendor lock-in.
Invidious
AGPL-3.0Open source front-end for YouTube that strips out ads, tracking, and algorithmic distractions while letting you subscribe to channels and manage playlists.
Insomnia
Apache-2.0Intuitive API client for REST, GraphQL, and gRPC. Debug, test, and collaborate on APIs with ease across platforms.
Horilla
LGPL-2.1Horilla is a free, open-source HRMS that streamlines HR processes, from recruitment to offboarding, with customizable modules.
Hey
GPL-3.0A blockchain-powered social platform offering censorship-resistant content sharing, user-owned data, and innovative monetization options.
Hexabot
NOASSERTIONHexabot is an open-source platform for creating intelligent, multilingual chatbots without coding complexity.
Hoodik
NOASSERTIONLightweight, self-hosted cloud storage built with Rust and Vue.js. Features end-to-end encryption, file sharing, search capabilities, and Docker deployment.
Hanko
NOASSERTIONOpen source authentication platform supporting passkeys, 2FA, SSO, and social login. Self-host or use Hanko Cloud, with full control over your data and no lock-in.
Hackatime
MITFree, open-source coding time tracker compatible with VS Code, JetBrains IDEs, vim, emacs and more. No limits, no paywalls - your data stays yours forever.
Cal.com
MITCal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.
Gladys Assistant
Apache-2.0Privacy-first home automation platform that runs locally on your hardware, supports Zigbee, Matter, and MQTT, and lets you automate your home without coding.
Gitea
MITA lightweight, fast, and customizable Git service that simplifies code hosting and collaboration for teams of all sizes.
GitButler
NOASSERTIONGitButler is a powerful Git client that enables seamless work on multiple branches concurrently, enhancing your existing workflow.
Ghost
MITPublish content, send email newsletters, and sell paid subscriptions from one platform. Used by independent journalists, creators, and businesses like YCombinator and Kickstarter.
Giselle
Apache-2.0Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.
Workbench
MITDesktop app and embeddable dashboard for BullMQ that shows live queue metrics, job runs, FlowProducer graphs, and scheduler status without touching Redis directly.
ShareX
GPL-3.0ShareX is a free, open-source program that captures or records any area of your screen and shares it with a single keypress, supporting various file types and destinations.
GDevelop
NOASSERTIONFree, open-source game engine with visual event system, AI tutor, and one-click publishing to Steam, iOS, Android, and web platforms.
Friendly Captcha
MPL-2.0Privacy-compliant CAPTCHA alternative using proof-of-work technology. Protects websites from bots and spam without user interaction or data tracking.
Fumadocs
MITA flexible Next.js framework for creating stunning documentation sites with MDX support, built-in search, and customizable components.
Formizee
Apache-2.0Formizee is an open-source platform for designing, building, and analyzing forms, offering an affordable all-in-one solution
Formbricks
NOASSERTIONCollect feedback across websites, apps, and emails with targeted surveys, user segmentation, and GDPR-compliant data handling. Self-host or use the cloud.
Flow
GPL-3.0A modern browser combining minimalist design with smart features like profiles, spaces, and command palette. Full Chrome extension support and privacy-focused browsing.
Countly
NOASSERTIONAll-in-one analytics platform for mobile, web, and desktop apps. Track user behavior, monitor performance, and optimize your product.
Fonoster
MITBuild and deploy powerful voice and messaging applications with ease using Fonoster's flexible, scalable, and developer-friendly platform.
Fluxer
AGPL-3.0Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.
Firecamp
AGPL-3.0All-in-one platform for API testing, documentation, and collaboration, simplifying the entire API development lifecycle.
Featurevisor
MITFeaturevisor is an open-source tool for managing feature flags, experiments, and remote configuration directly from your Git repository.
Faved
MITA private, open-source bookmark manager for power users and large libraries, with a powerful, clutter-free UI.
Evidence
MITCreate data-driven websites and reports using SQL and Markdown, with automatic visualizations and interactive elements.
Ever Teams
AGPL-3.0Ever Teams offers an all-in-one solution for work management, time tracking, and team collaboration with integrations for popular tools.
Erxes
NOASSERTIONAll-in-one solution for marketing, sales, and customer service. Boost engagement, streamline workflows, and drive growth.
Emdash
Apache-2.0Desktop app that runs 25+ coding agents simultaneously, each isolated in its own Git worktree, so you can orchestrate code changes without switching tools.
Element
AGPL-3.0Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.
Dub Partners
NOASSERTIONRun affiliate, influencer, and referral programs with flexible reward structures, real-time attribution, and automated global payouts.
dstack
MPL-2.0Unified control plane for AI compute that provisions and schedules GPU workloads across any cloud, Kubernetes cluster, or bare-metal server.
Dub Links
NOASSERTIONLink management platform for marketing teams with custom domains, UTM builder, A/B testing, geo-targeting, QR codes, and real-time conversion analytics.
Dyrector
Apache-2.0Effortless container orchestration platform for seamless deployment, management, and monitoring of applications across multiple environments.
Dokploy
NOASSERTIONStreamline your deployment process with Dokploy. Manage applications and databases on any VPS using Docker and Traefik for improved performance and security.
Docs
MITTransform document collaboration with real-time editing, version control, and secure sharing features that enhance team productivity and communication.
Docmost
AGPL-3.0Self-hosted wiki platform for enterprise teams with real-time collaboration, built-in AI, SSO, RBAC permissions, and compliance support for ITAR, FedRAMP, and GDPR.
dDocs
AGPL-3.0Write, organize, and collaborate in real-time with complete privacy and security. This app is an open-source, online/offline compatible, and AI-free alternative to Google Docs.
Dittofeed
MITDittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.
/dev/push
MITAn open-source alternative to Vercel and Render for deploying applications directly from GitHub with zero-config support.
Darkwrite
AGPL-3.0A customizable, offline-first note editor that lets you format text, create lists, add images, and export to HTML - all while maintaining your privacy.
CourseLit
AGPL-3.0An open-source platform for building and selling online courses, featuring customizable themes, integrated payments, and user management.
Coroot
Apache-2.0Coroot simplifies system monitoring by providing metrics, logs, traces, and profiling with zero instrumentation, leveraging eBPF technology.
Cossistant
AGPL-3.0Open-source support platform combining AI and human agents. React components with shadcn/ui design philosophy, styled with Tailwind CSS for NextJS apps.
Coolify
Apache-2.0Self-hostable deployment platform that lets you deploy apps, databases, and 280+ one-click services to any server via SSH, with Git integration and automatic SSL.
Colanode
Apache-2.0Local-first collaboration platform combining real-time chat, rich text pages, databases, and file management in a single self-hostable workspace.
Conar
AGPL-3.0Modern PostgreSQL database management with AI-powered filtering, natural language queries, and cloud sync. Focus on your data while AI handles complexity.
Cloudmark
AGPL-3.0Cloud-based bookmark manager that lets you save, categorize, and access your web favorites from any device with smart organization features
Cline
Apache-2.0AI coding agent that runs inside VS Code and the terminal, supporting multi-file edits, bash execution, and any LLM provider via bring-your-own-key.
Cinny
AGPL-3.0Cinny offers a simple, elegant, and secure interface for Matrix-based conversations, protected by end-to-end encryption.
Chartbrew
NOASSERTIONA powerful, open-source platform for building interactive dashboards and charts from multiple data sources without coding.
Cherry Studio
AGPL-3.0Desktop AI client for Windows, macOS, and Linux that connects 300+ models from 50+ providers, with local storage, a built-in knowledge base, and autonomous agent mode.
Cap
NOASSERTIONLightweight open-source CAPTCHA solution using SHA-256 proof-of-work. 250x smaller than hCaptcha, fully customizable, and privacy-focused with zero telemetry.
Chalk.ist
MITCreate beautiful, customizable images of your source code with ease, perfect for presentations, documentation, and social media sharing.
c15t
Apache-2.0Open source consent management framework for modern web apps. Framework-agnostic, fully customizable, and performance-first with no vendor lock-in.
BugPin
AGPL-3.0Embeds a lightweight widget into web apps so users can capture screenshots, annotate issues, and submit reports with console logs and browser metadata included.
Pearl
Apache-2.0Connect all your apps through Pearl, an AI assistant that automates workflows directly in Slack. No coding required - save 10+ hours weekly with intelligent task automation.
Bknd
Apache-2.0Lightweight Firebase alternative with database, auth, storage, and workflows. Framework-agnostic backend that integrates with NextJS, Remix, Hono and more.
Bookmark It
AGPL-3.0Open-source bookmark manager with timeline view, one-click saving, categorization, and sharing features. Free plan available with pro upgrades.
Blinko
GPL-3.0The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.
Browser Operator
BSD-3-ClausePrivacy-focused AI browser with intelligent agents for research, analysis, and workflow automation. Features unified memory, compliance guardrails, and seamless integrations.
Brace.to
MITA privacy-focused bookmark manager that encrypts your saved links, allowing you to access them anytime, anywhere, on any device with complete control.
Betterlytics
AGPL-3.0GDPR-compliant web analytics with real-time insights, session replay, and funnel tracking. No cookies, no tracking, no consent banners required.
Automatisch
NOASSERTIONSelf-hosted automation tool that connects your apps and services, enabling powerful integrations and efficient data flow across your ecosystem.
Automa
NOASSERTIONNo-code platform for building AI agents and RPA workflows that automate repetitive business tasks across finance, HR, sales, and operations.
Midori Browser
MPL-2.0Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.
Argos
MITAutomate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.
AnythingLLM
MITA desktop and self-hostable AI app for chatting with documents, running local LLMs, and using AI agents without writing code or creating an account.
AppSmith
Apache-2.0Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.
ALTCHA
MITSelf-hosted, privacy-friendly CAPTCHA alternative with proof-of-work mechanism

Aider
Apache-2.0Terminal-based AI coding tool that lets you edit existing codebases or start new projects using LLMs like Claude, GPT, and DeepSeek.
Actual
MITPrivacy-focused envelope budgeting app with local-first sync and end-to-end encryption

Envoy AI Gateway
Apache-2.0Open source gateway built on Envoy for routing application traffic to GenAI services. Supports 16+ LLM providers including OpenAI, Anthropic, AWS Bedrock.
ActivePieces
NOASSERTIONAI-first automation platform for teams with 761+ integrations and governance controls

aaPanel
NOASSERTIONaaPanel simplifies Linux server management with one-click installations, intuitive interface, and comprehensive tools for websites, databases, and more.
Ycode
MITBuild, manage, and host custom websites with a visual drag-and-drop builder and CMS. Self-host free or use managed cloud hosting.
WordPress
NOASSERTIONA versatile, user-friendly platform for building and managing websites, from simple blogs to complex e-commerce stores.
Supabase
Apache-2.0Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.
Loops
AGPL-3.0Open-source, decentralized short-video platform that gives creators control. No ads, no lock-in, built on ActivityPub for true community ownership.
Logseq
AGPL-3.0Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.
Fathom Lite
MITA simple, privacy-first analytics platform that provides valuable website insights without compromising visitor data or requiring cookie consent banners.