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Avidemux

Version Latest  ·  Updated: July 8, 2026
Open Source Windows ★ 4.4 (601 ratings)

Free open-source video editor for cutting, encoding, and filtering clips across popular formats on Windows.

John R. Lucas
John R. Lucas
Senior Image & Video Editor
LinkedIn ↗

Avidemux — Key Facts

Latest Version
Latest
Platforms
Windows
Price
Free to download
Official Site
fixounet.free.fr
User Rating
★ 4.4 / 5 (601 ratings)

About Avidemux

The Avidemux download lands you a free, open-source video editors tool built around three core operations: cut, encode, and filter. It targets intermediate users who need quick clip trimming, format conversion, or basic compression without paying for a full NLE suite. Hit File → Open, pick your footage, and you are ready to work. Supported containers include AVI, MP4, WMV, and FLV, so most common footage drops straight in without conversion fuss — a solid starting point for anyone editing downloaded or recorded video. open source

The workflow splits cleanly into two modes. Copy mode passes the audio track and video stream through untouched — no re-encode, no quality loss, and noticeably fast export. It suits pure cut jobs and container remuxing. Switch to encode mode when you need to change codec, adjust bitrate, or shrink file size; Avidemux then re-renders the full clip. One important keyframe rule applies: windows copy-mode cuts must start on a keyframe, or you risk frame-level glitches at the edit point. Filters — sharpening, subtitle burn-in, colour correction — always trigger a full re-encode regardless of mode.

Compared to a proper nle like DaVinci Resolve, Avidemux lacks a visual timeline, multi-track editing, real colour grading via LUTs, and frame-rate adjustment tools beyond basic re-encoding. Preview playback can stutter on longer clips. There is no proxy workflow, and the H.265 encoder options are limited. The interface shows its age: several toolbar buttons do nothing useful, menu labels are cryptic, and beginners will spend real time just locating the output codec selector. Think of it as a reliable handbrake-adjacent utility, not a full production suite.

For editors who just need lossless cuts or quick MP4-to-AVI remuxing on a tight deadline, Avidemux earns its place. The learning curve is real — plan an hour with the menus before tackling anything urgent. It is completely free, no watermark, no paywall. Check the free and codec tag pages for alternatives at similar price points. Casual users editing home recordings will find enough here; professionals will hit its ceiling fast.

Avidemux is a open source video editors available for Windows. Browse more free software or open source programs.

Frequently Asked Questions

Does Avidemux support H.264 and H.265 encoding on export?
Yes, partially — Avidemux supports H.264 encoding via its x264 encoder, which is reliable and well-tested for MP4 export. H.265 via x265 is available in recent builds but options are limited compared to dedicated transcoders. You set the codec in the Video Output dropdown on the left panel. For heavy H.265 batch work, HandBrake gives you more control over bitrate, quality target, and preset depth.
Can Avidemux cut video without re-encoding and losing quality?
Yes, absolutely — Copy mode in both the Video Output and Audio Output dropdowns passes streams through untouched, preserving original bitrate and quality entirely. The export is also dramatically faster since no render step occurs. The key constraint: cut points must land on a keyframe, or you will see corrupted frames at the splice. Use the frame-step buttons to locate a keyframe before marking your in-point.
What video formats can I open with Avidemux?
Avidemux opens a wide range of containers including AVI, MP4, MKV, WMV, FLV, and MOV, relying on its built-in codec libraries for decoding. Most common frame rates and interlaced sources are handled automatically on import. RAW camera formats are not supported — you will need to transcode BRAW or Cinema DNG footage first. For output, you can save to MKV, MP4, AVI, and several other containers via the Format menu.
Does Avidemux have a visual timeline for multi-clip editing?
No — Avidemux uses a single-clip, linear editing model with no visual drag-and-drop timeline. You mark in and out points using A and B keyboard shortcuts, then save or append segments. Multi-track audio mixing and transition effects are not available. If you need a proper timeline with multiple clips, colour grading, or LUT support, a full NLE like DaVinci Resolve Free Edition is a much better fit for that workflow.
John R. Lucas
Reviewed by John R. Lucas
Senior Image & Video Editor · PicturesQuePhotoVideo
Senior editor reviewing photo and video software since 2014. Based in Vancouver, BC. Specialises in RAW developer pipelines, color grading workflows, codec utilities and non-linear editor selection for desktop creators.
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Program Details
VersionLatest
LicenseOpen Source
PlatformsWindows
Developerfixounet.free.fr
UpdatedJuly 8, 2026
CategoryVideo Editors
User Rating
4.4
601 ratings
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