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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