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Concat
Concat logo

Concat

Active·★ 5.5k·AGPL-3.0·Updated 2026-10-14
★ Trending★ Hidden Gem

Concat is a free, open-source video editor and CapCut alternative for macOS, Windows, Linux and Android. It runs locally on a native Rust engine with a GPU compositor, and the README promises no watermarks, no account and no paywall. The AI models for captions, voices and background removal download once from Settings and then work offline, and nothing is uploaded.

Highlights include auto-captions with local Whisper, text-to-speech and voice cloning, background removal for people, objects or hand-painted masks, keyframes with a curve editor, 170+ effects, filters, transitions and text animations, a multi-track and multi-timeline editor with blend modes, titles, one-switch voice cleanup, and export to H.264, HEVC and AV1 up to 4K 60 with 10-bit colour. There is also a JSON-RPC, gRPC and MCP API plus a CLI, so scripts and AI agents can cut video with it. The README says the app is in beta and still has rough edges, offers 14 interface languages and is AGPL-3.0 licensed.

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Not affiliated with Anthropic, OpenAI or Microsoft.

This write-up is based on the project's README and public repository data. We have not hand-tested the tool. Data as of 2026-10-10.

License
AGPL-3.0
Latest release
v0.2.6 · 2026-10-06
Last commit
2026-10-10
Contributors
21
Forks
433
Open issues and PRs
89
First published
2026-08-25

Source: GitHub, npm and PyPI public APIs.

#Video Editor#Open Source#Cross-Platform#AI Features#Local Processing#Rust#Video API#Multimedia
$ Install
$ git clone https://github.com/jub0t/Concat.git && cd Concat && cargo build --release
↗ Visit site★ GitHub
01

Features

01No watermarks, account, or paywall, ever.
02100% local processing, works offline.
03Auto-captions using local Whisper models.
04Text-to-speech and voice cloning capabilities.
05Background removal for people and objects.
06Scriptable via JSON-RPC, gRPC and MCP API, plus a CLI.
02

Why choose it

+No watermark, account or paywall, and everything runs locally and offline once models are downloaded.
+Local Whisper auto-captions, text-to-speech with voice cloning, and background removal.
+Keyframes with a curve editor, 170+ effects and transitions, multi-track timelines and 4K 60 export in H.264, HEVC or AV1.
+JSON-RPC, gRPC and MCP API plus a CLI so agents can cut video; runs on macOS, Windows, Linux and Android.
03

Trade-offs

!The README says Concat is in beta and still has edges, so expect bugs.
!The AI models for captions, voices and cutout must be downloaded first, and local models need enough GPU or CPU power.
!It is AGPL-3.0 licensed, which has copyleft implications if you modify and distribute it.
04

Compatibility

Windows
OS
Verified via docs
macOS
OS
Verified via docs
Linux
OS
Verified via docs
Android
OS
Verified via docs
iOS / iPadOS
OS
Verified via docs
Rust
Engine
Verified via docs
05

Quick start

1
$ git clone https://github.com/jub0t/Concat.git
2
$ cd Concat
3
$ cargo build --release
06

Use cases

↳Creating content for TikTok, Reels, and Shorts.
↳Producing YouTube videos, tutorials, and screen recordings.
↳Editing podcast clips and memes.
↳Automating video cutting with scripts and AI agents.
07

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Stats
GitHub Stars★ 5.5k
Last commit1d ago
StatusActive
LicenseAGPL-3.0
CategoryVision / Multimodal
Trend (30d)
+0.2k↑ 4.0%
Links
Documentation↗Discussion↗Issues↗Releases↗

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