Concat

The truly free, open-source, local-first, cross-platform CapCut replacement. Scriptable through a JSON-RPC API & MCP.

⭐ 13,134 stars on GitHub · 🍴 1,621 forks · 📜 License: agpl-3.0 · 💻 Language: Rust

What is Concat?

A standout opensource self-host project on GitHub — host on your own server for full control over your data and costs.

Main components

• 🚫 No watermarks. No account. No paywall. Ever.
• 🔒 100% local. Nothing uploads. Works offline.
• 💬 Auto-captions. Local Whisper. Pick a model size, get styled captions on the timeline.
• 🗣️ Text-to-speech + voice cloning. Free local voices, or any voice from a few seconds of a recording.
• 🧍 Background removal. People, objects, or paint the mask yourself.
• 🎞️ Keyframes. Position, scale, rotation, opacity, volume, effect parameters. Curve editor built in.
• ✨ 100 effects, filters and transitions. GPU-rendered, live in the preview.
• ✂️ Cut fast. Split, trim, ripple, merge, freeze frame, speed. Magnetic timeline if you want it.

The biggest strength is active opensource community — fast bug fixes, regular features, no abandonment risk.

Best for self-host enthusiasts wanting to try a strong-community opensource project.

Topics: the project is tagged with popular topics:

• 🏷️ ffmpeg
• 🏷️ free-video-editor
• 🏷️ model-context-protocol
• 🏷️ non-linear-editor
• 🏷️ offline-first
• 🏷️ open-source-video-editor
• 🏷️ self-hosted
• 🏷️ video-editing
• 🏷️ video-editing-automation
• 🏷️ video-editing-software

📸 Screenshots

Quick install

See the README for detailed install instructions. Most projects support Docker — if the repo has a Dockerfile, use:

git clone https://github.com/jub0t/Concat.git
cd Concat
docker build -t Concat .
docker run -d -p 8080:8080 Concat

Minimum system requirements

⚡ Deploy fast on VSIS

Use the VSIS VPS Lite 2GB RAM / 2 vCPU / 25GB SSD (~104k/tháng) plan from VSIS.NET — high-speed VN-based VPS, 24/7 support, ideal for running Concat smoothly.

🎯 Benefits:

• One-command docker compose up -d deploy in 2 minutes
• Dedicated IPv4, root access, unmetered domestic bandwidth
• Daily snapshot backup
• Free install assistance from the VSIS team

👉 See matching VPS plans at vsis.net

Resources

• 🔗 GitHub: jub0t/Concat
• 🌐 Homepage: https://concat.standalones.org
• 📚 Official docs: see README in the repo
• 💬 Community: GitHub Issues + Discussions

Article compiled from GitHub data on 31/10/2026. Star/fork counts may have changed — see live numbers via the GitHub link.