Concat

Overview

Concat is a free, open-source video editor positioned as a CapCut replacement. It runs locally on a native Rust engine with a GPU compositor and supports macOS, Windows, Linux, Android, and iOS. It provides auto-captions, text-to-speech, voice cloning, background removal, keyframes, effects, titles, multi-track editing, and up to 4K export without watermarks, accounts, or subscriptions.

Key Features

• Offline auto-captions using local Whisper, with styled captions placed on the timeline.
• Text-to-speech and voice cloning, with generated speech added to the timeline.
• Background removal for people or objects, or manual mask painting with a smart brush.
• Keyframes with a curve editor for position, scale, rotation, opacity, volume, and effect parameters.
• Titles with fonts, stroke, shadow, background plate, and presets.
• 4K 10-bit export in H.264, HEVC, and AV1 up to 4K 60, without a watermark.

Use Cases

• TikTok, Reels, and Shorts edits
• YouTube videos, tutorials, and screen recordings
• Podcast clips
• Memes

Getting Started

• Download the build for your platform from the website or GitHub Releases.
• Install it, import footage, and edit in the editor window.
• Optionally download AI models once from Settings for offline captions, voices, and cutout.

Deployment & Requirements

• Runs on macOS, Windows, Linux, Android, and iOS.
• Minimum: any 64-bit processor from 2013 or later, 4 GB of RAM, and 500 MB of storage, with no GPU required.
• For smooth 1080p editing and quick 4K exports: 6 cores or more, a GPU with Metal, DirectX 12, or Vulkan, and 16 GB of RAM.
• Optional AI models download once from Settings and work offline afterward.

Before You Adopt

• License: AGPL-3.0. Review its terms before using, modifying, or distributing the project.
• The project describes itself as still having rough edges.
• Windows builds are not code-signed, so SmartScreen may require manual approval.
• macOS builds are unsigned and require clearing the quarantine flag after installation.
• iOS is in beta and must be sideloaded rather than installed from the App Store.
• AI models for captions, voices, and cutout are optional downloads and need to be fetched once before offline use.