Best Free Open-Source Open Source Software

The open-source CMS powering much of the web.

Self-hosted product analytics

Private, end-to-end encrypted messaging.

Free, open-source image editor.

The advanced open-source relational database.

Open-source, self-hosted alternative to Trello, Asana, and Notion

General purpose TLS and crypto library

Real-time collaborative document editor

Cross-platform automation framework for all kinds of apps

Self‑hosted, Subsonic‑compatible music streaming server for audiophiles

Self‑hosted web file manager for individuals and small teams

A full-featured download manager

Open source home automation with local control and privacy

Simple home server OS built on Docker

Realtime backend in 1 file

Self‑hosted grocery list and recipe manager

Your open‑source personal CRM for managing relationships

Open‑source headless commerce platform for developers and businesses

Cross-platform password manager compatible with Keepass 2.x

An open platform for various uses

Empowering everyone to build reliable and efficient software

Easy payment integration for various platforms

Open-source kanban board for small teams and freelancers

Free, self‑hosted Kanban board for small teams and individuals