Open Source #cross-platform Projects

Cross-platform open-source video editor built on the MLT framework with a wide format support and no import required.

A fast, privacy-first local markdown note-taking app built with Tauri and SvelteKit. Your notes stay as plain .md files on your device.

Cross-platform lossless music player with rich library management, synced lyrics, and gapless playback for Windows, macOS, and Linux.

A self-hosted, cross-platform podcast management system with a modern Rust and Python stack.

Turn raw screenshots into polished, shareable visuals. Free, open-source, and completely offline with Tauri.

Turn your Android phone into a 4K webcam via USB or WiFi with an open-source desktop client and mobile app.

Open-source drag-and-drop email editor with JSON templates, MJML rendering, and framework-agnostic embedding.

Open source base-building and factory-automation puzzle game inspired by Factorio — extract, cut, rotate, and combine shapes on an infinite map.

Cross-platform community-driven port of KeePass Password Safe.

Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs.

Free and open source multi-track video editor built on MLT Framework and KDE technologies.

Offline-first, self-hostable note-taking app with rich text, tags, attachments, and cross-device sync via Docker.

Cross-platform desktop app that removes EXIF and hidden metadata from 90+ file formats before sharing.

Free open-source non-linear video editor with hardware-accelerated compositing and cross-platform support.

Minimalist & lightweight startpage inspired by iOS for Chrome, Firefox, Edge and Safari.

Open source game engine that reimplements early Westwood classics including Command & Conquer: Red Alert, Tiberian Dawn, and Dune 2000.

Self-hosted, cross-platform reading server for manga, comics, and ebooks with responsive web readers and an OPDS feed.

A minimalist, offline-first markdown note-taking app for macOS, Windows, and Linux.

Privacy-first password manager with built-in email aliasing. Fully encrypted and self-hostable.

Free, open source turn-based strategy game set in a high-fantasy world, with single-player campaigns and online multiplayer.

Open source automation tower defense RTS — build factories, mine resources, and defend your core against waves of enemies.

Privacy-respecting mobile book tracker for iOS and Android, built with Flutter — your library lives on your device.

Free, open-source cross-platform TOTP authenticator with self-hostable sync backend, built with Flutter.

An agentic development environment built on a modern Rust terminal emulator with AI-powered coding features.

The best and simplest open-source tool for website change detection, page monitoring, and alerts. Self-hostable with Docker or use the SaaS plan.