Best Free Open-Source Open Source Software

A hierarchical note taking application

Free backup software to store encrypted backups online

Monitoring system and time series database

Open source password manager for teams

Powerful open‑source debugger for Windows reverse engineering

A secure password manager for teams

A modern Python CMS

Capture, upload, and share your screen with ease

A knowledge management tool for personal knowledge base and note-taking

The authentication glue you need

Network-wide ad blocking DNS server for homes and small businesses

Turn paper clutter into searchable digital archives on your own server

Open-source accounting software — a self-hosted alternative to QuickBooks and Xero

Open Source Computer Vision Library

Self-hosted product analytics

Open-source, flexible, and extensible low-code platform

A lightweight open-source framework to build and automate OpenAgent workflows.

Open‑source task manager built for tiny teams

A modern, open-source, headless CMS

Free, open-source video editor

Simple, easy-to-use analytics

A simple and elegant markdown editor

A virtual collaborative whiteboard for drawing and brainstorming

Secure password management on Android