MKVToolNix 97.0 for Mac

Whether you need to merge multiple video clips, extract audio tracks, add external subtitles, or reorganize chapters, this free toolkit handles everything through a straightforward graphical interface - and it runs natively on both Intel and Apple Silicon Macs.

Unlike re-encoding tools such as HandBrake or Shutter Encoder, MKVToolNix performs all operations without quality loss since it never touches the actual video or audio data. The software only modifies the container structure, preserving your original footage exactly as encoded while letting you reorganize and combine content freely.

Key Features

Merge Multiple Files: Combine video segments, separate audio recordings, and external subtitle files into one unified MKV. This is particularly useful when you have video from one source and higher-quality audio from another, or when adding translations to foreign films. Mac users ripping discs with MakeMKV for Mac will find MKVToolNix essential for refining those files - removing unwanted audio tracks, adding external subtitles, or combining multiple titles.

Split Large Files: Break oversized recordings into smaller, manageable segments. MKVToolNix can split by size, duration, or chapter markers - perfect for fitting files onto storage devices with file size limits or preparing content for different streaming platforms.

Edit Metadata and Chapters: Organize your content with custom chapter markers, modify track names, adjust default track selections, and add tags for better library organization. Media players like VLC for Mac, Elmedia Player, and IINA will display this information during playback.

Extract Content: Pull individual video, audio, or subtitle tracks from existing MKV files. Need just the audio from a music video? Want to extract subtitles for editing? MKVToolNix extracts any stream without quality degradation.

Format Support

MKVToolNix works with far more than just MKV files. You can import content from AVI, FLV, MOV, MPEG, MP4, WebM, OGG, and FLAC containers. Video codec support includes H.264/AVC, H.265/HEVC, VP8, VP9, AV1, MPEG-1/2/4, and legacy formats like DivX and Xvid. Audio support encompasses AAC, AC3, DTS, FLAC, MP3, Ogg Vorbis, Opus, TrueHD, and PCM. Subtitle formats include SRT, ASS/SSA, VobSub, PGS, and WebVTT.

The MKVToolNix Toolkit

The software includes three main applications:

• MKVToolNix GUI - The primary graphical interface where most users perform their work
• mkvmerge - Command-line tool for merging and splitting operations
• mkvinfo - Displays detailed information about MKV file contents
• mkvextract - Extracts tracks from MKV files
• mkvpropedit - Edits MKV properties without remuxing

Complete macOS Media Workflow

MKVToolNix for Mac integrates seamlessly with other multimedia tools to create a complete media management workflow:

Disc Ripping → MKV Editing → Compression → Playback

Start by ripping your DVDs or Blu-rays with MakeMKV for Mac - see our guide on how to use MakeMKV for free. Use MKVToolNix to refine those files by removing unwanted audio tracks, adding external subtitles, or combining multiple segments. If you need to compress files for streaming or portable devices, HandBrake handles conversion to H.264 or H.265 with device-specific presets.

For quick lossless trimming without MKVToolNix's full feature set, LosslessCut offers a simpler interface that cuts videos in seconds. Need to analyze your files before editing? MediaInfo reveals exact codec parameters, bitrates, and encoding profiles across your entire library.

For playback verification, VLC for Mac handles MKV files natively with full Apple Silicon optimization. Mac users seeking a more native interface might prefer Elmedia Player for its AirPlay and Chromecast support, or IINA for its modern macOS design language.

System Requirements

• Operating System: macOS 11.0 (Big Sur) or later - supports Monterey, Ventura, Sonoma, and Sequoia
• Processor: Intel or Apple Silicon (M1/M2/M3/M4) - runs natively on both architectures without Rosetta translation
• Storage: Approximately 50MB for installation plus working space for your projects

Alternative Tools

Choose MKVToolNix when you need to reorganize, combine, or modify container contents without affecting quality. For actual video conversion or re-encoding, use HandBrake. For advanced video editing with timelines and effects, Shotcut for Mac provides a full-featured editor with FFmpeg support. If you're working with both MKV and MP4 containers, MKVToolNix pairs excellently with MP4Box for comprehensive container management.

For Windows users seeking the same functionality, download MKVToolNix for Windows with identical features and interface.

Installation

Download the MKVToolNix DMG file using the link above. Mount the disk image and drag MKVToolNix to your Applications folder. On first launch, macOS may display a security prompt - right-click the application and select "Open" to bypass Gatekeeper restrictions for this trusted open-source software.

MKVToolNix for Mac is completely free, open-source software with no registration, subscriptions, or hidden costs. Download now and start organizing your video library with professional-grade container editing tools.