Top Open Source Projects Built With Vercel Functions in 2026
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.
Spanlens
Open source LLM observability & monitoring
Stars12Last commit16d agoLicenseMIT
Papermark
Open-source DocSend alternative with analytics
Stars8,977Last commit11d agoLicenseOpen SourceHexclave
Self-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.
Stars6,841Last commit11d agoLicenseOpen SourceContentport
AI-powered Twitter content engine for growing accounts
Stars764Last commit8mo agoLicenseAGPL-3.0
Comma
Free open-source personal website builder
Stars227Last commit8mo agoLicenseAGPL-3.0WR.DO
All-in-one productivity platform with short links and AI tools
Stars2,281Last commit3mo agoLicenseMITSlugy
Open source URL shortener with analytics
Stars92Last commit10d agoLicenseMITScira
AI search engine that reads deeply and cites sources
Stars11,850Last commit25d agoLicenseAGPL-3.0
Rallly
Free group meeting scheduling without logins
Stars5,225Last commit10d agoLicenseAGPL-3.0Rakazo
Open source Grok Bot alternative for persistent AI teammates
Stars1,379Last commit10d agoLicenseApache-2.0Proxed AI
Secure AI API keys without backend or SDKs
Stars8Last commit7mo agoLicenseAGPL-3.0
LobeChat
AI agent orchestration platform for teams
Stars82,031Last commit10d agoLicenseOpen Source
Linky
Dynamic link-in-bio page builder for creators
Stars795Last commit1mo agoLicenseMITLanguine
Automated localization for fast-paced startups
Stars2,031Last commit4mo agoLicenseMITGrida
Free open canvas for designing web apps
Stars2,623Last commit16d agoLicenseApache-2.0
