Open-source tools worth using
Self-hostable alternatives to the SaaS you pay for, ranked by how fast they grow. Each one is alive by our rule: a commit in the last 90 days, three or more contributors, a release this year.
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REA
Open-source MCP server that lets AI agents reverse engineer apps and explain how features work
Open source MIT AI coding Self-hostable
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Concat
Free open-source cross-platform video editor with AI features — the CapCut alternative that runs 100% locally.
Open source AGPL-3.0 AI video Self-hostable
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text-to-cad
Open-source plugin that gives AI agents real CAD: STEP/STL/3MF from plain-language prompts
Open source MIT Other Self-hostable
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i-have-adhd
Agent skill that makes Claude Code, Codex and Cursor lead with the next action instead of burying the answer
Open source MIT AI coding Self-hostable
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n8n
Self-hostable workflow automation with code-level flexibility
Source available AI automation Self-hostable
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YuE
Open-source AI music generation — full songs with vocals, self-hosted, no subscription
Open source Apache-2.0 AI voice Self-hostable
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Meetily
Privacy-first open-source AI meeting assistant with 100% local processing — no bot, no cloud
Open source MIT AI meeting notes Self-hostable
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Super Productivity
Free, open-source task manager with built-in time tracking, Pomodoro and issue-tracker sync — local-first, no account needed.
Open source MIT Time tracking Self-hostable
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Activepieces
Open-source, no-code automation platform — self-host free or use the cloud
Open source MIT AI automation Self-hostable
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Invoice Ninja
Source-available invoicing and billing you can self-host for free
Source available Invoicing Self-hostable
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TaxHacker
Self-hosted AI app that extracts data from receipts and invoices for accounting
Open source MIT Bookkeeping Self-hostable
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ComfyUI
Node-based local runner for open image and video models, scriptable through its API
Open source GPL-3.0 AI video production Self-hostable
★ 142k GitHub -
Three.js
The standard JavaScript library for 3D scenes in the browser (WebGL/WebGPU)
Open source MIT AI video production Self-hostable
★ 117k GitHub -
Whisper
OpenAI's open-weight speech recognition model for transcripts and subtitles
Open source MIT AI voice Self-hostable Activity below our bar — not recommended right now
★ 111k GitHub -
ManimGL
3Blue1Brown's own Manim, OpenGL-based and experimental, breaking changes undocumented
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 95.6k GitHub -
HyperFrames
HeyGen's open-source HTML-to-video renderer built for coding agents: write HTML, get a deterministic MP4
Open source Apache-2.0 AI video production Self-hostable
★ 70.4k GitHub -
Remotion
Make videos programmatically with React — free for teams of up to 3, company license above
Source available Remotion License AI video production Self-hostable
★ 66.6k GitHub -
FFmpeg
The command-line tool that encodes, cuts, muxes and mixes every video and audio file in the chain
Open source LGPL-2.1-or-later AI video production Self-hostable
★ 65.6k GitHub -
whisper.cpp
C/C++ port of Whisper that transcribes fast on a laptop CPU or Apple Silicon
Open source MIT AI voice Self-hostable
★ 54.6k GitHub -
Manim Community
Python library for precise mathematical animations — the community-maintained edition
Open source MIT AI video production Self-hostable
★ 41.8k GitHub -
lottie-web
Airbnb's player that renders After Effects animations exported as Lottie JSON in the browser
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 32.3k GitHub -
GSAP
JavaScript animation library, free for everyone including commercial use since Webflow bought it
Source available LicenseRef-GSAP-Standard-No-Charge AI video production Self-hostable Activity below our bar — not recommended right now
★ 29.6k GitHub -
video-use
Edit raw footage by chatting with a coding agent
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 29.5k GitHub -
Chatterbox
Resemble AI's open-weight TTS with voice cloning and emotion control
Open source MIT AI voice Self-hostable Activity below our bar — not recommended right now
★ 27.1k GitHub -
faster-whisper
Whisper reimplemented on CTranslate2 — same accuracy, several times faster
Open source MIT AI voice Self-hostable
★ 26.1k GitHub -
WhisperX
Whisper with word-level timestamps and speaker diarization — the base for word-by-word captions
Open source BSD-2-Clause AI voice Self-hostable
★ 24.8k GitHub -
p5.js
JavaScript creative-coding library for generative art and sketches on canvas
Open source LGPL-2.1 AI video production Self-hostable
★ 24.2k GitHub -
Blender
Free 3D suite an agent can drive headless through its Python API to model, animate and render
Open source GPL-2.0-or-later AI video production Self-hostable
★ 21.2k GitHub -
Motion Canvas
TypeScript library for code-driven animated explainers, with a live editor
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 19.4k GitHub -
img2threejs
Rebuilds the object in a reference photo as a code-only, animation-ready Three.js model
Open source Apache-2.0 AI video production Self-hostable
★ 18.8k GitHub -
Wan 2.2
Alibaba's open-weight video generation model (text and image to video), Apache-2.0
Open source Apache-2.0 AI video Self-hostable Activity below our bar — not recommended right now
★ 18.1k GitHub -
brag
Agent skill that turns the project you just built into a short launch video with music and share copy
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 17.5k GitHub -
Tone.js
Web Audio framework for synthesizing music and sound in code
Open source MIT AI video production Self-hostable
★ 14.8k GitHub -
ACE-Step 1.5
Open-weight music generation model that runs locally: lyrics and style prompt in, song out
Open source MIT AI video production Self-hostable
★ 13.9k GitHub -
video-shotcraft
Claude Code and Codex skill for product promos in Remotion, from 124 tuned shot recipes
Open source Apache-2.0 AI video production Self-hostable
★ 13k GitHub -
Theatre.js
Motion design editor and keyframe sequencer for web animation and Three.js scenes
Open source Apache-2.0 AI video production Self-hostable Activity below our bar — not recommended right now
★ 12.8k GitHub -
LTX-2
Lightricks' open-weight audio-video model — free below $10M annual revenue, paid license above
Source available AI video Self-hostable
★ 9.8k GitHub -
Kokoro
82M-parameter open-weight text-to-speech model that runs locally, even on CPU
Open source Apache-2.0 AI voice Self-hostable Activity below our bar — not recommended right now
★ 9.6k GitHub -
Piper
Fast local neural text-to-speech, maintained by the Open Home Foundation
Open source GPL-3.0 AI voice Self-hostable
★ 6k GitHub -
Remotion Agent Skills
Remotion's official agent skills that teach Claude Code, Codex and Cursor its best practices
AI video production Self-hostable Activity below our bar — not recommended right now
★ 5.5k GitHub -
Lemo-Opuscar
Claude Code plugin with code-made film styles: style prompts plus demo films, no video model
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 5.5k GitHub -
Revideo
Motion Canvas fork for rendering videos from TypeScript, the engine behind Midrender
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 4.1k GitHub -
Herk Edit Kit
Video-editing skills for Codex and Claude Code: transcript cuts, captions, motion cards on HyperFrames
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 2k GitHub -
p5.brush
p5.js add-on for natural brush strokes, hatching and watercolour fills
Open source MIT AI video production Self-hostable Activity below our bar — not recommended right now
★ 1.1k GitHub -
dotLottie Web
LottieFiles' maintained web player for Lottie and .lottie animations
Open source MIT AI video production Self-hostable
★ 924 GitHub