Concat: Free Open-Source CapCut Alternative (Local Video Editor)
Concat is a free, open-source, local-first video editor positioned as a CapCut replacement. It runs on Windows, macOS, Linux, Android and iOS, with auto-captions (local Whisper), text-to-speech and voice cloning, background removal, keyframes, titles, effects and multi-track cutting up to 4K — with no watermark, no account and no subscription. Everything stays on your machine. Licence: AGPL-3.0. Latest GitHub release: v0.2.7 (October 13, 2026) from jub0t/Concat. Download only from concat.standalones.org or GitHub Releases, and verify checksums. This is not a browser “merge MP4 online” tool and not FFmpeg’s concat demuxer — it is the standalone CapCut-style app.
Concat at a glance
| Concat | |
|---|---|
| What it is | Local multi-track video editor (CapCut-style short-form workflow) |
| Made by | Open-source project jub0t/Concat |
| Official site | concat.standalones.org |
| Price / licence | Free; AGPL-3.0 |
| Latest version | v0.2.7, released October 13, 2026 |
| Status | Beta (works; edges still being fixed) |
| Account / upload / watermark | None — footage and models stay on disk |
Concat vs “merge / concat videos” searchers
People searching “concat video editor” sometimes mean a generic online merger or FFmpeg’s concat filter. This page is about the CapCut-alternative app named Concat. If you only need to join two MP4s, a simple merge tool or FFmpeg may be enough. If you want captions, TTS, cutout, keyframes and a timeline without CapCut’s account/paywall, Concat is the product.
What Concat does (from the official site)
- Auto-captions offline — local Whisper; styled captions land on the timeline.
- Text-to-speech + voice cloning — built-in voices, or a voice from a short recording.
- Background removal — person, object, or painted mask (no green screen required).
- Keyframes + curve editor — position, scale, rotation, opacity, volume, effect params.
- Titles — fonts, stroke, shadow, background plate, presets.
- Effects / filters / transitions — about 100 GPU-rendered effects (site count).
- Export — H.264, HEVC, AV1 up to 4K 60, 10-bit where supported; no watermark.
- Automation — JSON-RPC API from the open app; MCP server / CLI noted on the project for agents and scripts.
How to download Concat (official only)
- Prefer the OS picker on concat.standalones.org, or open GitHub Releases.
- Grab v0.2.7 (or newer) for your platform. Typical release assets include:
| System | Typical v0.2.7 file |
|---|---|
| Windows x64 | Concat-0.2.7-windows-x86_64-setup.exe or .msi |
| macOS Apple Silicon | Concat-0.2.7-macos-arm64.dmg |
| macOS Intel | Concat-0.2.7-macos-x86_64.dmg |
| Linux x86_64 / aarch64 | AppImage, .deb, .rpm, Arch .pkg.tar.zst |
| Android | Concat-0.2.7-android-arm64.apk |
| iOS / iPadOS (beta, sideload) | Concat-0.2.7-ios-arm64.ipa |
- Verify the published sha256 on the official site / release notes when present.
Unsigned builds: macOS may block the app until you clear quarantine once after moving it to Applications:
xattr -dr com.apple.quarantine /Applications/Concat.app
Windows SmartScreen may show More info → Run anyway on unsigned installers. Prefer official GitHub / standalones.org over third-party “Concat download” mirrors.
Who should try it
- Creators leaving CapCut who want local captions, TTS and cutout without an account.
- People editing TikTok / Reels / Shorts / YouTube clips on desktop or Android.
- Developers scripting edits via the JSON-RPC / planned MCP path.
Keep a mature NLE (or CapCut) for production workflows Concat’s beta has not covered yet — check the project issues and Discord for known edges.
Frequently asked questions
What is Concat video editor?
Concat is a free, open-source, local-first CapCut alternative. It edits on a multi-track timeline with offline auto-captions, TTS, background removal, keyframes and 4K export, with no watermark or account. Official home: concat.standalones.org and github.com/jub0t/Concat.
Is Concat free?
Yes. The project is AGPL-3.0. There is no paid tier for features; optional sponsorship funds development.
Does Concat upload my footage?
No. Editing, captions, voices and cutout run locally. Optional AI models download once from Settings and then work offline.
Where do I download Concat safely?
Only from concat.standalones.org or github.com/jub0t/Concat/releases. Verify checksums. Ignore lookalike download sites.
What is the latest Concat version?
As of this page’s check on October 18, 2026: GitHub release v0.2.7 published October 13, 2026.
Is Concat the same as FFmpeg concat or online merge tools?
No. Those join files or filter streams. Concat (this page) is a full CapCut-style GUI editor with captions, TTS and effects.
Why does macOS say Concat is damaged?
macOS builds are unsigned. Move Concat to Applications, then run: xattr -dr com.apple.quarantine /Applications/Concat.app (from the official site’s FAQ).