Concat

Concat: Video editor that provides local auto-captions, effects, and multi-track cutting without subscriptions.

Concat is a free, open-source video editor and CapCut alternative for desktop and mobile operating systems. It covers auto-captions, text-to-speech, background removal, keyframe animation, effects and titles, multi-track cutting, and 4K export without watermarks, accounts, or subscriptions. Everything runs locally on a native Rust engine with a GPU compositor, and AI models download once to work offline so footage never leaves the disk. It is built for video editors making TikToks, Reels, Shorts, YouTube videos, tutorials, and podcast clips. It also includes a JSON-RPC, gRPC, and MCP API so scripts and AI agents can cut video.

Concat at a glance

Best for: Social media creator
Runs on: macOS, Windows, Linux, Android, iOS, API, CLI, open source
Pricing: Free
Released: August 2026
Category: AI video tool
Website: github.com/jub0t/Concat

Key features

Local auto-captions using Whisper
Text-to-speech and voice cloning
Background removal for people and objects
Keyframe animation with built-in curve editor
170+ GPU-rendered effects and transitions
Multi-track cutting and magnetic timeline
One-switch voice cleanup and audio effects
JSON-RPC, gRPC, and MCP API for scripting

Use it for

Edit TikToks, Reels, and Shorts
Create YouTube videos and tutorials
Produce podcast clips and screen recordings
Automate video editing with AI agents

Alternatives to Concat

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Editonny — Local processing keeps video files on your computer while an AI agent edits them.
Toonflow — Automates the entire video creation workflow with multi-agent collaboration and character consistency.
AutoClip — Local processing ensures video editing and rendering happen on your computer.
Video Use — Edits raw footage using coding agents with word-boundary precision and self-evaluation.
CapCut CLI — Automates video projects locally while keeping every track fully editable.
EasyCut — Runs entirely in your browser with no upload, no account and no watermark.
SupoClip — Face-aware cropping and open-source self-hosting.
AeonCut — It runs locally in Rust with open source code and no subscriptions.
OpenChatCut — Local-first AI video editor with a multi-track timeline and MCP integration.
Mastershot Studio — Free in-browser editing and 4K MP4 exports with no watermarks or uploads.
CapCut — Free editor with templates and AI captions for short-form video

All Concat alternatives