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Open Source Projects using Vercel

A curated collection of the 113 best open source software using Vercel. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

An agentic CRM that keeps records current automatically
  • Stars

    Stars growing over the last 30 days11,861
  • Last commit

    4 days ago
  • License

    MIT
Open source CRM with AI agents that read your inbox, enrich contacts and companies, schedule follow-ups, and build new agents from plain-language descriptions.

Open Source Alternative to:

AI coding agent for terminal, IDE, and desktop
  • Stars

    Stars growing over the last 30 days224,667
  • Last commit

    5 hours ago
  • License

    MIT
Open source AI coding agent that works in your terminal, IDE, or desktop app, supporting 75+ LLM providers with no code storage.

Open Source Alternative to:

Build and run AI agents that handle recurring work for you
  • Stars

    187,908
  • Last commit

    5 hours ago
  • License

    Other
Platform for building, deploying, and running AI agents that automate repeatable digital work across research, outreach, content, and support without writing code.

Open Source Alternative to:

Org chart, budgets, and governance for AI agent teams
  • Stars

    Stars growing quickly over the last 30 days111,212
  • Last commit

    5 hours ago
  • License

    MIT
Manages teams of AI agents across business functions with org charts, goal alignment, cost tracking, ticket tracing, and board-level governance controls.

Open Source Alternative to:

Collaborative whiteboard with a hand-drawn aesthetic
  • Stars

    135,189
  • Last commit

    16 hours ago
  • License

    MIT
Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.

Open Source Alternative to:

Open source video editor that runs in your browser
  • Stars

    Stars growing over the last 30 days97,360
  • Last commit

    1 month ago
  • License

    MIT
Browser-based, open source video editor built for privacy. No installs, no account required, works on any platform.

Open Source Alternative to:

Postgres-powered backend platform for production apps
  • Stars

    Stars growing over the last 30 days114,547
  • Last commit

    5 hours ago
  • License

    Apache-2.0
Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.

Open Source Alternative to:

Manage, build, and run AI agent teams around the clock
  • Stars

    83,962
  • Last commit

    5 hours ago
  • License

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

Open Source Alternative to:

Headless CMS with REST and GraphQL APIs out of the box
  • Stars

    73,435
  • Last commit

    6 hours ago
  • License

    MIT
TypeScript headless CMS that generates REST and GraphQL APIs from your content model, with a no-code builder, plugin system, and full self-hosting support.

Open Source Alternative to:

Self-host your own scheduling page, no vendor required
  • Stars

    49,700
  • Last commit

    2 days ago
  • License

    MIT
Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.

Open Source Alternative to:

Free instant whiteboard with real-time collaboration
  • Stars

    51,255
  • Last commit

    18 hours ago
  • License

    Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.

Open Source Alternative to:

Headless CMS for developers, built with Node.js
  • Stars

    45,674
  • Last commit

    10 hours ago
  • License

    MIT
A powerful, flexible, and developer-friendly content management system that prioritizes customization and scalability.

Open Source Alternative to:

Design database diagrams and generate SQL scripts instantly
  • Stars

    40,250
  • Last commit

    4 days ago
  • License

    AGPL-3.0
Free online database diagram editor with SQL generation. Create ER diagrams, visualize relationships, export scripts, and reverse engineer schemas - no signup required.

Open Source Alternative to:

Build AI copilots for your product in hours, not months
  • Stars

    38,527
  • Last commit

    13 hours ago
  • License

    MIT
Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.

Open Source Alternative to:

Empower your team to build custom internal tools rapidly
  • Stars

    41,161
  • Last commit

    12 hours ago
  • License

    Apache-2.0
Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.

Open Source Alternative to:

Real-time error tracking and performance monitoring
  • Stars

    45,712
  • Last commit

    6 hours ago
  • License

    Unknown
Detect, diagnose, and resolve software issues quickly with powerful error tracking, performance monitoring, and release management.

Open Source Alternative to:

Open-source e-commerce for modern developers
  • Stars

    37,092
  • Last commit

    5 hours ago
  • License

    MIT
Flexible, customizable e-commerce platform with headless architecture, built-in features, and extensive plugin ecosystem for scalable online stores.

Open Source Alternative to:

Your personal distributed filesystem
  • Stars

    39,422
  • Last commit

    5 hours ago
  • License

    Apache-2.0
A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.

Open Source Alternative to:

Framework-agnostic authentication for TypeScript applications
  • Stars

    30,598
  • Last commit

    7 hours ago
  • License

    MIT
A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration.

Open Source Alternative to:

Secure storage and access control for secrets and sensitive data
  • Stars

    36,466
  • Last commit

    15 hours ago
  • License

    Unknown
Manages tokens, passwords, certificates, and encryption keys through a UI, CLI, or HTTP API, with dynamic credentials and encryption-as-a-service built in.

Open Source Alternative to:

Multi-model AI workspace with org-wide skill sharing
  • Stars

    24,408
  • Last commit

    5 hours ago
  • License

    MIT
Desktop 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.

Open Source Alternative to:

AI-powered code completion for seamless development
  • Stars

    33,918
  • Last commit

    4 months ago
  • License

    Apache-2.0
Self-hosted AI coding assistant that enhances productivity with context-aware suggestions and privacy-focused implementation.

Open Source Alternative to:

Branded short links with analytics and conversion tracking
  • Stars

    25,107
  • Last commit

    9 days ago
  • License

    AGPL-3.0
Link management platform for marketing teams with custom domains, UTM builder, A/B testing, geo-targeting, QR codes, and real-time conversion analytics.

Open Source Alternative to:

Build unlimited AI apps locally with zero vendor lock-in
  • Stars

    22,187
  • Last commit

    7 hours ago
  • License

    Apache-2.0
Create full-stack AI applications using any model or tool. Run entirely on your machine with complete privacy, flexibility, and control over your code.

Open Source Alternative to:

AI workforce platform where agents, skills, and memory live in your repo
  • Stars

    20,385
  • Last commit

    7 hours ago
  • License

    Elastic-2.0
Manages a team of AI agents across your company, with every agent, skill, memory, and connector stored as versioned files in a git repo you own and self-host.

Open Source Alternative to:

Open-source data integration for modern teams
  • Stars

    22,318
  • Last commit

    10 hours ago
  • License

    Elastic-2.0
Seamlessly sync data from any source to any destination with a flexible, extensible platform that grows with your data needs.

Open Source Alternative to:

Unify data models and metrics across your entire stack
  • Stars

    21,170
  • Last commit

    7 hours ago
  • License

    Unknown
Cube is a universal semantic layer that connects data sources to analytics tools, providing consistent definitions and fast queries.

Open Source Alternative to:

Run dozens of AI coding agents in parallel on your machine
  • Stars

    Stars growing over the last 30 days15,945
  • Last commit

    6 hours ago
  • License

    MIT
Desktop app for macOS and Linux that orchestrates multiple AI coding agents simultaneously, each in its own isolated Git worktree, so you can work on many tasks at once.

Open Source Alternative to:

Run long-running AI tasks without timeouts or servers
  • Stars

    16,716
  • Last commit

    2 days ago
  • License

    Apache-2.0
Open source TypeScript platform for building and deploying AI agents and background workflows with retries, queues, observability, and elastic scaling.

Open Source Alternative to:

Secure, customizable identity infrastructure for developers
  • Stars

    15,515
  • Last commit

    1 day ago
  • License

    AGPL-3.0
ZITADEL provides a comprehensive identity management solution with easy APIs, customizable workflows, and serverless deployment options.

Open Source Alternative to:

Privacy-first survey and experience management platform
  • Stars

    13,217
  • Last commit

    5 hours ago
  • License

    AGPL-3.0
Collect feedback across websites, apps, and emails with targeted surveys, user segmentation, and GDPR-compliant data handling. Self-host or use the cloud.

Open Source Alternative to:

E2B

AI
Secure cloud environments for enterprise AI agents
  • Stars

    Stars growing over the last 30 days14,718
  • Last commit

    21 hours ago
  • License

    Apache-2.0
Provide AI agents with secure, isolated sandboxes featuring real-world tools, code execution, and enterprise-grade security. Trusted by 88% of Fortune 100 companies.

Open Source Alternative to:

Streamline your business finances and operations
  • Stars

    15,114
  • Last commit

    5 months ago
  • License

    AGPL-3.0
All-in-one tool for freelancers and small businesses to manage finances, track time, store files, and send invoices efficiently.

Open Source Alternative to:

Build full-stack apps with TypeScript and real-time sync
  • Stars

    12,778
  • Last commit

    7 hours ago
  • License

    Unknown
Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.

Open Source Alternative to:

Create powerful chatbots without coding
  • Stars

    10,605
  • Last commit

    10 days ago
  • License

    Unknown
Design, build, and deploy interactive chatbots with a visual editor. Integrate easily and collect data effortlessly.

Open Source Alternative to:

Minimalistic AI-powered search engine for instant answers
  • Stars

    11,912
  • Last commit

    3 months ago
  • License

    AGPL-3.0
Scira delivers concise, AI-generated responses to queries using a clean interface and powerful search capabilities.

Open Source Alternative to:

AI-powered answer engine with dynamic interface generation
  • Stars

    9,276
  • Last commit

    10 hours ago
  • License

    Apache-2.0
Open-source answer engine that dynamically generates UI components while providing AI-powered responses, combining conversational AI with interactive interfaces.

Open Source Alternative to:

Feature flags for rapid, risk-free software deployment
  • Stars

    13,934
  • Last commit

    20 hours ago
  • License

    AGPL-3.0
A powerful feature management platform enabling gradual rollouts, A/B testing, and seamless integration for continuous delivery.

Open Source Alternative to:

Realtime client-side database for collaborative apps
  • Stars

    10,562
  • Last commit

    7 hours ago
  • License

    Apache-2.0
Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products.

Open Source Alternative to:

Modern payment infrastructure for digital products and SaaS
  • Stars

    10,464
  • Last commit

    5 hours ago
  • License

    Apache-2.0
Comprehensive payment solution with built-in tax handling, automated benefits, and seamless integrations for digital product and SaaS businesses.

Open Source Alternative to:

Open-source document sharing with powerful analytics
  • Stars

    9,291
  • Last commit

    2 months ago
  • License

    AGPL-3.0
Secure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.

Open Source Alternative to:

Visual web development with code-level control
  • Stars

    9,147
  • Last commit

    6 hours ago
  • License

    AGPL-3.0
Powerful no-code platform for building responsive websites. Combines visual editing with full HTML/CSS customization.

Open Source Alternative to: