Browse all categories
Explore 150 categories of open source software. Find alternatives, self-hostable solutions, and privacy-respecting tools for every use case.
AI & Data
Audio & Video
Business Operations
Communication & Social
Content & Web
Databases & Storage
Developer Tools
Finance & Accounting
Gaming & Self-Hosting
Graphics & Design
HR & Operations
Identity & Access
Networking & Infrastructure
Productivity & Notes
Sales, CRM & Marketing
Security & Privacy
This directory sorts 150 categories of open source software into 16 themes, from AI and databases to accounting and gaming. Each category is a specific job - a password manager, a video editor, a CRM - and its page lists the maintained open source tools that do that job well. The number next to a category is how many tools we currently track for it, so a higher count means more options to compare. Pick a theme below to narrow the field, or open a category directly. Every listing shows live GitHub signals like stars, license, and last commit, so you can tell what is actively maintained before you commit to it.