Discover recent open source alternatives

Open-source daemon that runs Cloudflare Workers and Durable Objects on your own machines, with state stored in an S3-compatible bucket.

Local-first project management for developers and AI agents, with a CLI, web UI, SQLite backend, and native skills for Claude Code, Cursor, Codex, and more.

Open-source safety-first disk cleaner and space analyzer for macOS and Windows, with duplicate, large file, and app uninstaller tools.

Self-hostable travel tracker and trip planner with interactive world map, itineraries, GPX trails, and Immich/Strava integrations.

Open-source Bloomberg-style finance terminal built in C++20/Qt6 with embedded Python, AI agents, and 100+ data connectors.

Open-source platform for fine-tuning and running LLMs locally — 2x faster training with 70% less VRAM. Supports LoRA, QLoRA, DPO, GRPO.

Open source ticketing system with zero per-attendee fees. Self-hostable on Deno with Stripe, Square, or SumUp, and end-to-end encrypted attendee data.

Self-hostable OpenStreetMap stack with search, routing, POIs, and transit — a privacy-first Google Maps Platform alternative that runs on your own hardware.

Open-source Getting Things Done (GTD) app for desktop and mobile — capture every task, then focus on the next action.

Open-source task and chore manager for groups — natural-language scheduling, assignee rotation, and NFC completion triggers.

Open source realtime backend in a single file — SQLite, auth, file storage, and admin UI in one Go binary.

Self-hosted tasks and notes management with offline support, push reminders, and full-text search in a single Docker container.

A fast, self-hostable scheduling platform written in Rust, like Cal.com but without Node.js or a database server.

A lightweight, self-hosted commenting server written in Python and JavaScript, built as a drop-in replacement for Disqus.

A small, open-source microblogging platform for short notes, following people and hashtags, without engagement tricks.

An open-source, single-executable Firebase alternative with sub-millisecond REST and realtime APIs, built-in auth, a WebAssembly runtime, and an admin UI.

Private, self-hosted search engine that indexes the pages you visit and the files you keep for full-text and semantic search.

A free, open-source real-time strategy game inspired by The Settlers, focused on building economies and thriving settlements.

An open-world, voxel-based multiplayer RPG inspired by Cube World, built with the Rust programming language.

An open-source, cross-platform remake of Civilization V that runs on Android and desktop with full mod support.

A free, open-source kart racing game featuring Tux and friends, with single-player, multiplayer, and online modes.

A classic open-source side-scrolling platformer starring Tux the penguin, inspired by the original Super Mario games.

An open-source simulation game based on Transport Tycoon Deluxe, letting you build and manage a vast transport empire.

An open-source reimplementation of RollerCoaster Tycoon 2 that expands the original with new features, rides, and multiplayer.