Find the Best Open Source Alternatives to Popular Software

Open-source uptime monitoring and status page platform with synthetic checks from 28 global regions and multi-channel alerting.

Self-hosted Kanban and scrum project management tool with real-time collaboration, sprints, and anonymous shareable boards.

Self-hosted, real-time collaborative travel planner with itineraries, maps, budgets, and packing lists.

Markdown-based note-taking app with powerful live queries, templates, and a pluggable scripting system for power users.

Minimalist, federated blogging platform for writers who want a clean, distraction-free space to publish.

Network-wide DNS-based ad and tracker blocker with parental controls, DNS rewrites, and detailed query logging.

Federated link aggregator and community discussion platform — a decentralized, self-hostable alternative to Reddit.

Real-time collaborative markdown note editor you can self-host — write together with rich formatting and seamless sharing.

Minimalist, opinionated RSS feed reader that is fast, lightweight, and written in Go — designed for long-term use.

Open-source wealth management software to track stocks, ETFs, cryptocurrencies, and your overall net worth.

Modern, lightweight self-hosted music server compatible with Subsonic/Airsonic clients — stream your music everywhere.

Open-source scheduling infrastructure — a self-hostable alternative to Calendly for booking meetings and appointments.