Beta
Bitrate
Drag-and-drop audio conversion to MP3, AAC, ALAC, FLAC, WAV, OGG and Opus, with tags and artwork intact.
Beta
Rewrap
Video that just plays on Apple devices, remuxed natively on Apple silicon.
Rewrap turns MKV, AVI, TS and other video into MP4 and M4V files that play on your Mac, Apple TV, iPhone and iPad. Streams that already fit are copied across untouched, so most files are done in moments with no loss in quality. Only what can’t go into MP4 is converted, and chapters, metadata and cover art always come along.
Free · Signed and notarized · No network access · Nothing else to install
Screenshot: Rewrap main window with the track inspector and the jobs drawer
What it does
What Rewrap does
Drop in a video, see every track, pick a preset and go. Rewrap does the fiddly parts for you.
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Passthrough first
H.264 and HEVC video, AAC, AC3, E-AC3 and ALAC audio and text subtitles are copied into MP4 without re-encoding.
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H.264 and HEVC when needed
Convert with the Mac’s hardware encoder for speed, or x264 and x265 in one or two passes for quality.
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Chapters and artwork kept
Every job keeps chapters, metadata and cover art. It isn’t an option you have to remember.
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Soft or burned-in subtitles
Add SRT, ASS, SSA or WebVTT files as switchable subtitles, or burn text and Blu-ray or DVD subtitles into the picture.
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Presets for your devices
Six built-in presets, from Passthru Remux to Apple TV 4K and Archive H.265, plus your own.
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Batches and watch folders
Queue many files at once, or pick a folder and Rewrap converts new videos as they arrive.
Planned Device-aware passthroughSplit by file sizeOnline metadata lookup
How it works
Copy what fits. Convert only what doesn’t.
Most “won’t play” videos only need a new container. Rewrap looks at every stream in the file and remuxes the ones MP4 can hold, which is fast and loses nothing. A stream that can’t go into MP4 falls back to HEVC video or AAC 5.1 audio, and you can change any of it before you start.
- Every video, audio and subtitle track in one table, with its bitrate
- Turn tracks on or off and fix their language
- Several audio versions in one file, such as the original plus an AAC stereo track
- MP4 or M4V, tagged as a movie, TV show, music video or home video
Copied as they are
- H.264
- HEVC
- AAC
- AC3
- E-AC3
- ALAC
- SRT
- WebVTT
Converted when needed
- Video → HEVC
- Audio → AAC 5.1
- Subtitles → MP4 text
Chapters, metadata and cover art are always kept.
Replaces MP4tools
Coming from MP4tools?
MP4tools hasn’t been updated since 2019 and runs on Apple silicon only through Rosetta 2. Rewrap is a new app, written from scratch for Apple silicon, for the same everyday job: getting video into MP4 and M4V without losing chapters, tracks or artwork. It also converts to HEVC.
Rewrap is a new app and shares no code with MP4tools. There’s nothing to import: open your files and go.
Your first conversion
- Drop your videos onto the Rewrap window.
- Pick a preset, such as Passthru Remux or Apple TV 4K.
- Click Convert and follow each job in the drawer.
MP4tools is a trademark of its respective owner. Rewrap is independent and is not affiliated with or endorsed by its owner.
Built on FFmpeg
Rewrap includes FFmpeg with x264 and x265, licensed under the GNU General Public License, and the source code for each release is published with it.
Details
- Version
- 1.0.0
- Status
- Beta
- Requires
- macOS 14 or later
- Processor
- Apple silicon
- Network
- None: the bundled FFmpeg can only read and write files
- App size
- About 64 MB, FFmpeg included
- Output
- MP4 or M4V
- Data collected
- None
- Price
- Free
- Developer
- Xenoplexus Studios
Rewrap is an independent app and is not affiliated with, endorsed or sponsored by Apple Inc. Apple TV, iPhone, iPad, Mac and macOS are trademarks of Apple Inc., registered in the U.S. and other countries.
MP4tools is a trademark of its respective owner. Rewrap is independent and is not affiliated with or endorsed by its owner.
Rewrap includes FFmpeg, licensed under the GNU General Public License. The license texts and the matching source code for each release are on the licenses page.
Join the Rewrap beta
Rewrap is in beta. Leave your email and we’ll send you a download link as soon as there’s a beta build for you to try.
Needs macOS 14 or later on a Mac with Apple silicon. About 64 MB. Rewrap is free.
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