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Top Open Source Projects using Vercel Functions

A curated collection of the 22 best free and open-source projects built using Vercel Functions. Discover popular repositories, architecture patterns, and trending software in 2026.

22 projects indexedExplore all tech stacks →
Spanlens

Spanlens

MIT
★ 12

Drop-in observability platform for OpenAI, Anthropic, and Gemini that logs every request, tracks costs, traces agent workflows, and flags anomalies and PII.

Spanlens
TypescriptPLpgSQLPythonJavaScript+32
Papermark

Papermark

NOASSERTION
★ 8,977

Secure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.

Papermark
TypescriptJavaScriptCSSPython+30
Hexclave

Hexclave

NOASSERTION
★ 6,841

Self-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.

Hexclave
TypescriptMDXSwiftJavaScript+32
Contentport

Contentport

AGPL-3.0
★ 764

Create, schedule & manage Twitter content at scale with AI assistance, beautiful visuals, and multi-account support. Perfect for busy founders.

Contentport
TypescriptCSSJavaScriptGitHub+27
Comma

Comma

AGPL-3.0
★ 227

Free site builder to create a personal website with articles, projects, email capture, and analytics. Open source, fast, and beautifully designed.

Comma
TypescriptCSSJavaScriptGitHub+23
WR.DO

WR.DO

MIT
★ 2,281

WR.DO offers free domain name distribution and short URL generation, built on Cloudflare's infrastructure for reliability and speed.

WR.DO
TypescriptMDXSCSSJavaScript+24
Slugy

Slugy

MIT
★ 92

Open-source URL shortener with analytics, custom domains, QR codes, and link-in-bio pages. Create branded short links with detailed tracking insights.

Slugy
TypescriptHTMLCSSPLpgSQL+28
Scira

Scira

AGPL-3.0
★ 11,850

Scira delivers concise, AI-generated responses to queries using a clean interface and powerful search capabilities.

Scira
TypescriptCSSHTMLJavaScript+27
Rallly

Rallly

AGPL-3.0
★ 5,225

A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.

Rallly
TypescriptMDXJavaScriptCSS+34
Rakazo

Rakazo

Apache-2.0
★ 1,379

Run persistent AI bots that sign into your tools, complete tasks autonomously, and ask for approval when needed. Your keys, your model, your infrastructure.

Rakazo
TypescriptCSSAstroShell+23
Proxed AI

Proxed AI

AGPL-3.0
★ 8

A secure proxy service that protects AI API keys using Apple DeviceCheck, enabling safe integration of ChatGPT, Claude, and other AI models in iOS apps

Proxed AI
TypescriptMDXJavaScriptPLpgSQL+26
LobeChat

LobeChat

NOASSERTION
★ 82,031

A collaborative platform to create, schedule, and operate AI agents that handle long-running tasks, team workflows, and automated jobs without constant oversight.

LobeChat
TypescriptHTMLShellJavaScript+37
Linky

Linky

MIT
★ 795

Build a dynamic link-in-bio page with a drag-and-drop editor. Integrate platforms to showcase live content and connect with your audience.

Linky
TypescriptMDXJavaScriptCSS+32
Languine

Languine

MIT
★ 2,031

A developer-focused localization platform that automates translation workflows within your existing development pipeline and CI/CD processes.

Languine
TypescriptCSSJavaScriptDockerfile+19
Grida

Grida

Apache-2.0
★ 2,623

Design and build web applications on an open canvas with AI-powered tools, Figma integration, pixel drawing, and a modular SDK built for extensibility.

Grida
TypescriptHTMLPLpgSQLJavaScript+34
Giselle

Giselle

Apache-2.0
★ 553

Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.

Giselle
TypescriptJavaScriptCSSPLpgSQL+31
Dub Partners

Dub Partners

NOASSERTION
★ 24,583

Run affiliate, influencer, and referral programs with flexible reward structures, real-time attribution, and automated global payouts.

Dub Partners
TypescriptJavaScriptCSSHTML+36
Dub Links

Dub Links

NOASSERTION
★ 24,583

Link management platform for marketing teams with custom domains, UTM builder, A/B testing, geo-targeting, QR codes, and real-time conversion analytics.

Dub Links
TypescriptJavaScriptCSSHTML+35
Cap

Cap

NOASSERTION
★ 21,271

Record your screen or webcam, edit with backgrounds and effects, then share via link. Built on Rust and Tauri for native performance on macOS and Windows.

Cap
RustTypescriptJavaScriptMDX+34
0 Finance

0 Finance

MIT
★ 249

CLI-first banking platform for AI agents and autonomous workflows

0 Finance
TypescriptSolidityJavaScriptPython+33
Ycode

Ycode

MIT
★ 285

Build, manage, and host custom websites with a visual drag-and-drop builder and CMS. Self-host free or use managed cloud hosting.

Ycode
TypescriptCSSJavaScriptShell+20
Supabase

Supabase

Apache-2.0
★ 108,474

Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.

Supabase
TypescriptMDXJavaScriptCSS+33