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Head-to-head · Video Merger Software

MKVToolNix vs Avidemux

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score MKVToolNix #3 in Video Merger Software 9.0/10 Free plan Free plan✓ 0 of 3 features Visit MKVToolNix
Avidemux #6 in Video Merger Software 8.6/10 Free plan Free plan✓ 0 of 3 features Visit Avidemux

MKVToolNix leads on 0 checks, Avidemux on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMKVToolNix · 9.0/10
  • Free planboth

MKVToolNix scores higher on our rubric for video merger software: 9.0 against 8.6 out of 10; our editors rank them #3 and #6.

MKVToolNix is the better fit for MKV/WebM track and container workflows. Avidemux is the better fit for free editors needing joining plus encoding.

  • MKVToolNix fits best

    MKV/WebM track and container workflows

  • Avidemux fits best

    Free editors needing joining plus encoding

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Side by side

Feature MKVToolNix 9.0/10 Visit ↗ Avidemux 8.6/10 Visit ↗
At a glance
Editor score 9.0 8.6
Ranking #3 in Video Merger Software #6 in Video Merger Software
Best for MKV/WebM track and container workflows Free editors needing joining plus encoding
Pricing model Free Free
Starting price Free plan Free
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS, Linux Web, Windows, macOS, Linux
Support Community, Docs Docs
Built for Solo, Small business Solo, Small business
Features MKVToolNix 0/3 · Avidemux 0/3
Browser-based Not checked yet Not checked yet
Lossless joining Not checked yet Not checked yet
Batch joining Not checked yet Not checked yet
Specs
Desktop platforms Not checked yet Not checked yet
Maximum output resolution Not checked yet Not checked yet
Maximum file size Not checked yet Not checked yet
Our review
Pros
  • GUI and command-line tools support detailed multiplexing workflows
  • Runs on Windows, macOS and Linux
  • Extracts tracks, chapters, tags, attachments, cues and timestamps
  • Joins multiple video files and saves selected segments
  • Copy mode enables cuts without re-encoding
  • Includes filtering, encoding, scripting, and job queues
Cons
  • Does not transcode video or audio codecs
  • Desktop deployment only, with no web or mobile app
  • No batch conversion feature is provided
  • Basic workflow lacks timeline-based or multitrack editing
  • Desktop deployment limits use to supported computer platforms
  • Documentation is the listed support channel
Our verdict

MKVToolNix is an open-source desktop suite for creating, altering and inspecting Matroska files. It is aimed at media enthusiasts, archivists and small teams that need container-level control over existing video, audio and subtitle…

Read the review →

Avidemux is a free, open-source desktop application for basic video editing and processing. It suits solo editors and small teams that need to cut clips, join multiple files, convert formats, adjust audio tracks, apply filters, or save…

Read the review →
  1. MKVToolNixVideo Merger Software 9.0Free plan
  2. AvidemuxVideo Merger Software 8.6Free plan

Strengths and trade-offs

  • MKVToolNix — where it wins

    • GUI and command-line tools support detailed multiplexing workflows
    • Runs on Windows, macOS and Linux
    • Extracts tracks, chapters, tags, attachments, cues and timestamps

    Where it doesn't

    • Does not transcode video or audio codecs
    • Desktop deployment only, with no web or mobile app
    • No batch conversion feature is provided

  • Avidemux — where it wins

    • Joins multiple video files and saves selected segments
    • Copy mode enables cuts without re-encoding
    • Includes filtering, encoding, scripting, and job queues

    Where it doesn't

    • Basic workflow lacks timeline-based or multitrack editing
    • Desktop deployment limits use to supported computer platforms
    • Documentation is the listed support channel

More comparisons

All video merger software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update