MKVToolNix

Overview

MKVToolNix is a collection of command-line tools and a GUI for creating, editing, merging, splitting, and inspecting Matroska (MKV) files. It handles video, audio, subtitle tracks, and metadata, supporting input from formats like AVI and MP4. Targeted at users processing multimedia files, it stands out for its cross-platform support and detailed file manipulation without re-encoding.

Key Features

• mkvmerge - Combines multiple video, audio, and subtitle files into a single MKV container while preserving quality and sync.
• mkvinfo - Displays detailed information on MKV files including tracks, codecs, and metadata.
• mkvextract - Extracts specific tracks or data from MKV files.
• mkvpropedit - Modifies properties of existing MKV files such as titles, track languages, and flags without remuxing.
• MKVToolNix GUI - Graphical interface for mkvmerge, mkvinfo, and mkvpropedit with savable settings.
• Chapter Editor - Edits and manages chapter information in MKV files.
• Header Editor - Modifies track headers including names and default flags.

Pricing

Platforms & Requirements

Runs on Windows, macOS, and Linux with GUI and CLI options. No specific minimum requirements listed beyond standard OS support. Fully featured across all platforms with no notable limitations.

Integrations & Ecosystem

• Matroska (MKV) files
• AVI, MP4, and other video formats
• Subtitle formats (SRT, PGS, ASS)
• Audio codecs (Opus, AAC, AC3)
• Qt framework for GUI
• EBML metadata standard

Alternatives

Reputation

MKVToolNix is widely regarded as the standard tool for Matroska file handling due to its reliability and depth of features. Users praise its cross-platform consistency and active maintenance since 2003. Some note the command-line tools have a learning curve, though the GUI mitigates this for beginners.