MP4tools
MP4tools is a video manipulation utility that lets you convert, join, split and edit MP4 files without re-encoding the video and audio streams, making processing fast and lossless. It features batch processing, job queues, subtitle handling (burning or muxing), audio conversion to AC3 or AAC 5.1 surround sound, and presets for common devices like iPhone and Apple TV. It is designed for users who need to quickly process MP4 videos for playback on specific hardware or to work around file size limits without quality loss.
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1 suggestionMP4tools has not been updated since October 2019, over six years ago, and currently ships only as a 64-bit Intel (x86) application with no native Apple Silicon build. The app runs under Rosetta 2 today, but Apple is removing Rosetta support in macOS 28 (September 2028), so MP4tools will stop launching entirely on that release and you need to plan an alternative now. Given the age of the codebase and the absence of any activity from the developer, a native update appears unlikely. For fast lossless MP4 processing without re-encoding, consider migrating to ffmpeg (free, command-line, actively maintained and natively compiled for Apple Silicon) combined with a GUI wrapper like Shutter Encoder or HandBrake (free, open-source, native Apple Silicon support, handles complex muxing and encoding workflows). Both are more actively maintained and will continue to work on future macOS releases.
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