Discover
the Best
Open Source Projects
Browse 10,000+ open source projects. Find the best alternatives to popular software.
Discover the best open source projects on GitHub. Browse by category, compare by stars and community activity, and find your next favorite open source software — whether you're building, learning, or looking for tools.
Trending Open Source Projects
🛠️ Developer Tools
nocodb
🔥 🔥 🔥 A Free & Self-hostable Airtable Alternative
colima
Container runtimes on macOS (and Linux) with minimal setup
tabby
Self-hosted AI coding assistant
insomnia
The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.
☁️ Infrastructure & DevOps
nhost
The Open Source Firebase Alternative with GraphQL.
dokku
A docker-powered PaaS that helps you build and manage the lifecycle of applications
woodpecker
Woodpecker is a simple, yet powerful CI/CD engine with great extensibility.
appwrite
Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more
📊 Data & Analytics
posthog
🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimentation, surveys, data warehouse, a CDP, and an AI product assistant to help debug your code, ship features faster, and keep all your usage and customer data in one stack.
umami
Umami is a modern, privacy-focused analytics platform. An open-source alternative to Google Analytics, Mixpanel and Amplitude.
grist-core
Grist is the evolution of spreadsheets.
teable
✨ The Next Gen Airtable Alternative: No-Code Postgres
⏱️ Productivity
plane
🔥🔥🔥 Open-source Jira, Linear, Monday, and ClickUp alternative. Plane is a modern project management platform to manage tasks, sprints, docs, and triage.
openproject
OpenProject is the leading open source project management software.
planka
PLANKA is the Kanban-style project mastering tool for everyone
baserow
Build databases, automations, apps & agents with AI — no code. Open source platform available on cloud and self-hosted. GDPR, HIPAA, SOC 2 compliant. Best Airtable alternative.
💼 Business
📝 Content & CMS
wiki
Wiki.js | A modern and powerful wiki app built on Node.js
Ghost
Independent technology for modern publishing, memberships, subscriptions and newsletters.
payload
Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.
directus
The flexible backend for all your projects 🐰 Turn your DB into a headless CMS, admin panels, or apps with a custom UI, instant APIs, auth & more.
💬 Communication
chatwoot
Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬
jitsi-meet
Jitsi Meet - Secure, Simple and Scalable Video Conferences that you use as a standalone app or embed in your web application.
Rocket.Chat
The Secure CommsOS™ for mission-critical operations
mattermost
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
🏠 Self-Hosted
listmonk
High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.
gitea
Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD
erxes
Experience Operating System (XOS) that unifies marketing, sales, operations, and support — run your core business seamlessly while replacing HubSpot, Zendesk, Linear, Wix and more.
BookStack
A platform to create documentation/wiki content built with PHP & Laravel
🎨 Design & Creative
darktable
darktable is an open source photography workflow application and raw developer
penpot
Penpot: The open-source design tool for design and code collaboration
krita
Krita is a free and open source cross-platform application that offers an end-to-end solution for creating digital art files from scratch built on the KDE and Qt frameworks.
gimp
Read-only mirror of https://gitlab.gnome.org/GNOME/gimp
💰 E-commerce & Finance
Why OpenSourceProjects?
GitHub has millions of repositories. Finding the right open source project shouldn't feel like searching for a needle in a haystack.
Discover
Browse thousands of curated open source projects organized by category, language, and use case. Stop scrolling through endless GitHub search results.
Compare
See GitHub stars, forks, license, last commit, and community activity side by side. Make informed decisions about which open source tools to adopt.
Replace
Find open source alternatives to expensive proprietary software. Save money, own your data, and join a community of millions choosing open source.
Frequently Asked Questions
What is open source software?
Open source software is software with source code that anyone can inspect, modify, and enhance. It is typically free to use and developed collaboratively by a community of developers.
How do I find the best open source alternatives?
You can browse open source alternatives by category, search by the commercial software you want to replace, or compare projects by GitHub stars, community activity, and features on OpenSourceProjects.cc.
What does "self-hosted" mean for open source projects?
Self-hosted means you can install and run the software on your own server or infrastructure, giving you full control over your data and customization, instead of relying on a third-party cloud service.
Why use open source projects instead of proprietary tools?
Open source software offers transparency, community-driven development, no vendor lock-in, and often zero licensing cost. You can audit the code for security, customize it to your needs, and benefit from contributions by thousands of developers worldwide.
Are open source projects free to use?
Most open source projects are free to download and use. Some offer paid hosting, support, or enterprise features, but the core software remains free under open source licenses like MIT, Apache 2.0, or GPL.