Free & Open Source Software
Showing 132 projects
Flagsmith
Open-source feature flag platform
Cal.com
Open-source Calendly alternative
ERPNext
Open-source ERP system
CheckMK
Comprehensive IT monitoring solution
Dagster
Data orchestration platform
Blender
Free and open source 3D creation suite
Authentik
Open-source Identity Provider
Airbyte
Open-source data integration platform
Mastodon
Free, open-source decentralized social media platform
ClickHouse
Fast open-source OLAP database
Dub
Open-source link management platform
Anki
Powerful intelligent flashcard program
Appsmith
Open-source low-code platform
DBeaver
Universal database tool
Erxes
Open-source growth marketing platform
Firezone
Self-hosted VPN server
ClearFlask
Product feedback and roadmap tool
CKAN
Open-source data portal platform
Discourse
Modern forum and community platform
Element
Secure collaboration and messaging
Budibase
Low-code platform for building internal tools
ApostropheCMS
Content management for Node.js
Coolify
Self-hostable Heroku/Netlify alternative
Collabora Online
LibreOffice-based online office suite
ArangoDB
Multi-model database
Dragonfly
Modern in-memory datastore
Home Assistant Core
Open home automation platform
Chatwoot
Open-source customer engagement platform
Apache NiFi
Automate data flow between systems
Crowd.dev
Open-source community and customer data platform
Appwrite
Open-source backend server
AVideo
Create your own video streaming platform
CloudQuery
Open-source cloud asset inventory
CrowdSec
Collaborative cybersecurity solution
CryptPad
Encrypted collaboration suite
Dokku
Docker-powered mini-Heroku
Etherpad
Real-time collaborative document editor
Dolibarr
Modern open-source ERP and CRM software
Corteza
Open-source low-code platform and Salesforce alternative
Ant Media Server
Scalable live video streaming server
Ente
End-to-end encrypted photo storage
BookStack
Simple self-hosted wiki platform
Cube.js
Open-source headless BI platform
CiviCRM
Open-source CRM for nonprofits
ArmorPaint
3D PBR texture painting software
Cortex
Horizontally scalable Prometheus
Filestash
Universal file manager
Deepset Haystack
LLM orchestration framework
Authelia
Single sign-on and two-factor authentication portal
Brave Browser
Privacy-focused web browser
Ever Gauzy
Open-source business management platform
Directus
Open data platform for managing content
Cryptomator
Client-side encryption for cloud files
WordPress
Free CMS to create beautiful website and blog
Drone
Container-native CI/CD platform
Beekeeper Studio
Modern SQL editor and database manager
Apache APISIX
Cloud-native API gateway
Exoframe
Self-hosted deployment tool
Ceph
Distributed storage system
AFFiNE
Open-source alternative to Notion and Miro
Cerbos
Open-source authorization solution
Fider
Platform for feedback and feature requests
Darktable
Open-source photography workflow and RAW developer
Firefly III
Personal finance manager
Dgraph
Native GraphQL graph database
Flipt
Enterprise-ready feature flag solution
ClamAV
Open-source antivirus engine
BigBlueButton
Open-source web conferencing system
Builder.io
AI-powered visual development platform
Docusaurus
Documentation website generator
Cinny
Matrix client for desktop and web
BoxyHQ
Open-source security building blocks
Argos CI
Visual testing platform
FeatBit
Open-source feature flag service
Audacity
Free open source audio editor and recorder
Dyrectorio
Release management platform
File Browser
Web-based file manager
Audiobookshelf
Self-hosted audiobook and podcast server
Flax Engine
Multi-platform game engine
EspoCRM
Open-source CRM for building customer loyalty
Aptabase
Open-source privacy-first analytics
Akaunting
Free accounting software for small businesses
Apache Guacamole
Clientless remote desktop gateway
Flarum
Modern forum software
CoyIM
Secure chat client for XMPP
ClassQuiz
Interactive quiz platform for education
Berty
Secure peer-to-peer messaging app
Bagisto
Free open-source Laravel eCommerce platform
Draw.io
Free online diagram software
DokuWiki
Simple to use wiki software
Ballerine
Open-source infrastructure for user identity and risk management
BleachBit
System cleaner and privacy tool
Ackee
Self-hosted analytics tool for those who care about privacy
Concrete CMS
Content management system
Buildbot
Python-based continuous integration framework
AppFlowy
Open-source alternative to Notion
CapRover
Free automated scalable PaaS
Automatisch
Open-source Zapier alternative
Briefing
Modern video conferencing solution
Cachet
Open-source status page system
FileCentipede
Universal file upload/download manager
Fief
Open-source authentication platform
Bangle.io
Local-first note-taking app
Dendron
Open-source local-first knowledge management
Astuto
Self-hosted customer feedback tool
Automa
Browser automation extension
Flowchart.fun
Generate flowcharts from text
ActivityWatch
The best free and open-source automated time tracker
Chaskiq
Open-source messaging platform for customer engagement
Bundle.js
Online JavaScript bundler and package size analyzer
AuthPass
Password manager for mobile and desktop
Appbase
Search UI components for Elasticsearch
Aegis
Free and secure 2FA app for Android
FileGator
Powerful multi-user file manager
Boost Note
Open-source markdown editor for developers
Buttercup
Free cross-platform password manager
Clipperz
Zero-knowledge online password manager
SendPortal
Free Open-source self-hosted email marketing application
BoxBilling
Automated billing and client management
Featurebase
Product feedback and roadmap platform
Cabal Desktop
P2P community chat platform
Fathom Analytics
Privacy-first website analytics
ActiveWorkflow
Open source workflow automation platform
Atom
Hackable text editor for the 21st century
Curiefense
Cloud-native application security platform
Baserow
Open-source no-code database
Bitwarden
Open-source password manager
ClickVote
Simple voting and polling tool
Cloudogu Ecosystem
Self-hosted DevOps platform
Codeberg
Free alternative to GitHub
Commento
Lightweight comment platform
Countly
Product analytics platform