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MP4tools is the part of the VIDEOtoolbox Suite of Applications used for the creation and editing of MP4 videos. It was primarily designed for processing videos files for use in hardware capable of playing MP4 or M4V videos, such as the iPhone, iPad, Apple TV and PS3. As the name might imply, MP4tools is a graphical interface for a variety of tools useful for processing video files.

Trialware $6
OS: Mac
File size: 72MB
Old versions
Version history
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MP4tools screenshot
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Latest version

3.7.2 (October 13, 2019)


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Download MP4tools 3.7.2  72MB  Mac

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Download MP4tools old versions

Software License

Shareware (Free download but time limited software. Full version from $6)

Supported operating systems

MacMac OS

Complete Version history / Release notes / Changelog

3.7.2 - 10/13/19
Updated binaries to 64-bit and added code to make the app macOS Catalina friendly

3.7.1 - 5/22/18
Updated the ffpmeg related binaries to 3.4.2
Fixed a bug that prevented the app from playing some movies with subtitles
Fixed a bug that made the app appear to freeze on the 2nd pass of 2-pass encoding

3.7.0 - 4/9/18
Fixed a number of bugs introduced with High Sierra
Code was updated to Swift 3
mp4box was updated to version 0.6.2

3.7.0- 3/19/18
Code updated to Swift 3
mp4box updated to version 0.6.2
Numerous High Sierra related bug fixes.

3.6.7 - 10/7/17
Fixed a bug that could produce unplayable videos.

3.6.6 - 10/1/17
Updated the ffmpeg binary to the latest version.
The default audio option is set to pass thru if none is selected
Fixed a bug that prevented passed thru H265 video from playing on the newest Apple OS's. Note, H265 encoding is coming soon.

3.6.5 - 5/22/17
Updated/Improved the transfer of subtitles to SUBtools
Fixed a bug that could cause to freeze after the completion of some conversions
Fixed a bug where for a device is setting of General, the app would try to edit the AVC profile level
In the Settings Presets, the "Add 2-Ch. Track" now correctly uses the "If Stereo" bitrate
Fixed a bug where log files were created for some processes regardless of preference settings

3.6.4 - 11/21/16
Fixed a bug that prevented files from opening for some users.

3.6.3 - 10/22/16
Fixed a bug that prevented joining files
Fixed a bug that could cause a crash when a large number of files were edited
Some minor GUI changes with the Edit Files tab functionality
Added a Debug Mode option in preferences to turn on logging to the console app
Fixed a bug that could prevent metadata searches from launching properly

3.6.2 - 9/7/16
Fixed a bug that prevented conversions when "Keep Log Files" was unchecked in preferences

3.6.1 - 9/6/16
Update ffmpeg to version 3
Numerous minor bug fixes
Added more logging for the file opening process to help track down a bug effecting the opening of files for some users

3.6.0 - 7/11/16
Updated to Swift 2
High potential for random bugs
Added a "Send Bug Report" option in the help menu
Turned off compiler optimizations that would cause random crashing
Added a pseudo store window to streamline the registration process
Can now double click in the jobs queue to go to the output file
Made various bug fixes with the "Q" popup
Fixed various bugs with adding multiple files to the jobs queue
Fixed a bug that could adversely effect the order of aac and ac3 audio tracks
GUI now remembers media type and device from previous sessions
Media types can now be set in presets

3.5.3 - 12/6/15
Deleted a stray button matrix in the subtitle filter popup.
Fixed a bug that could change the username when updating on systems with macports installed.
Restored creation of default track titles.

3.5.2 - 11/14/15
Fixed some issues with registration status and usernames.
Fixed bugs that would cause crashes when some text fields were empty.
Fixed bug that could cause subtitles imported from SUBtools to be ignored when processed.
Fixed a bug that could cause crashing with some EyeTV files.
Fixed movie metadata search bug.

3.5.1 - 10/24/15
Fixed a bug that caused crashing on start up for some users.

3.5.0 - 10/19/15
System requirements are now 10.9.x or higher.
The preferences has changed so you will need to re-enter your registration code and other preferences.
Most of the code updated to Swift
Preference panel reorganized
Fixed and improved handling of files with problem tracks
Can now open eye tv packages
Developer ID signing added to make gatekeeper happy
Fixed a bug that prevented chapter files from being passed on to converted MP4/M4V video files
known issue, this creates a "dummy" subtitle text track
Added preference to force the extension to mp4

3.4.5 - 11/2/14
Fixed an initial set of Yosemite related bugs
Fixed bug where log files of identical processes get appended instead of rewritten
Fixed a bug that could cause crashes when editing jobs from the queue

3.4.4 - 8/27/14
Code converted to ARC
Fixed a variety of bugs in the presets panel
Fixed a bug that sometimes mislabeled filenames in the queue drawer
Fixed a bug that could cause strange behavior in finder when writing to the log file
Fixed a bug that prevented some subtitles from being sent to SUBtools

3.4.3 - 6/14/14
Fixed a bug effecting 2-pass encoding when muxing SRT subtitles
Fixed a bug that could effect the handling of the "Movie, Home Video," metadata
Fixed a bug that could freeze some processing on systems earlier than 10.9
"[NSURL fileSystemRepresentation]: unrecognized selector" error message
Added "Video Remux" button to remux mp4's through mp4box to fix Apple TV stuttering issues on previously

3.4.2 - 4/24/14
Fixed bug that could cause some 2-pass conversions to fail
Fixed a bug that could cause the app to crash during track extractions
Fixed a bug that could cause freezes during playback on some files when the AVC profile level was edited
Fixed a bug that could prevent conversions from working properly after track extraction jobs
Fixed a bug that could prevent the Movie, TV Shows, Home Video, ... tag from being properly written
Added TV Show Names and TV Show Networks to available tags

3.4.1 - 3/2/14
Fixed a bug that could make the convert button be ignored after a group of files had been added to the job queue
Fixed a bug that disabled the "Play" button
Fixed a Watch Mode bug that would prevent some files from being added to the queue

3.4 - 2/22/14
Can now send subtitles to SUBtools (must be v1.0.b6 or higher) and back for quick editing and formatting fixes
Added a "Q" button to allow the user to view and manipulate individual files when a group of files are opened
Users can now specify in preferences whether or not to use Dolby Pro Logic II when surround sound is down mixed to 2-channels
Fixed a bug that made the app appear to lock up while the fontconfig cache was being initialized
Improved handling of .ts files
Multiple bug fixes to track identification which should reduce issues when opening files
fixed a bug that prevented the track language information from being copied to processed file
Added a fix to address an ffmpeg bug that could prevent SRT tracks from being muxed properly
Threading related bug fixes that could cause freezes.
Fixed bug that prevented metadata artwork from being found at
Numerous Mavericks bug fixes

3.3.7 - 10/23/13
Fixed a bug that prevented metadata from being properly saved
Can now select surround encodings for any audio with more than 2 channels.

3.3.6 - 10/17/13
Fixed a library bug that may happen for OS X 10.6 users.
Fixed a bug that may cause the app to freeze for OS X 10.8 users.

3.3.5 - 9/15/13
Made more (and hopefully final needed) changes to AVC Profile Level editing which was still causing some iDevice playback issues (freezes, stuttering, ...).
Added a prefence option that will stop MP4tools from editing metadata at the end of processing.
Fixed bug that would cause strange behavior if a watch mode job was cancelled.

3.3.4 - 8/24/13
Fixed a bug preventing vob files from being processed in watch mode.
Fixed a bug that prevented some log files from being properly cleaned up.
Made changes to the AVC Profile Level editing to fix some iDevice playback issues.
Fixed a bug that would often reset one of the split times to zero

3.3.3 - 8/15/13
The media type metadata can now be set to allow iTunes to properly identify the type of video
Fixed a bug that could cause the app to crash when splitting files

3.3.2 - 8/9/13
Fixed a preventing the preferences panel from opening in OS X 10.6

3.3.1 - 8/3/13
Fixed a spinning beach ball bug for 2-pass encoding

3.3.0 - 7/28/13
Can now edit video metadata including search/import from movie and TV metadata databases
The "add 2-ch. track" checkbox has been removed, replaced by the ability to select more than one conversion for individual audio tracks
The Edit Tracks Tab has been removed. Most of it's functionality was redundant (Extract Tracks is now in the MP4 tab).
Major changes to the joining code which should improve success rate.
Code for identifying tracks has been updated to reduce some "MP4tools could not identify ..." messages.
Added code to produce error log files for occurrences of "MP4tools could not identify ..." messages.
Major changes to post processing step ("finalizing") which should dramatically improve speeds
Users can now specify in preferences if video should be "Optimized"
Improved handling of M2TS/MTS/TS videos
A number of improvements to burning subtitles (e.g., internal pgs should now be supported)
Fixed a bug that could cause 2-pass encoding to fail
Various bug fixes

3.2.5 - 2/7/13
Fixed a bug that caused files to have the same title which would prevent the files from being imported into iTunes

3.2.4 - 1/28/13
Fixed a bug that caused the start time to be ignored when splitting videos
Fixed some permission issues that could effect users on computers with mulitple accounts

3.2.3 - 1/21/13
Fixed a bug that sometimes occurred when multiple audio tracks were selected
Fixed a bug that might prevent the "Split" button from enabling in Snow Leopard
Fixed a bug that prevented split files from using the user defined save directory
Fixed a bug effecting Core Duo processors
Updated mp4box

3.2.2 - 1/2/13
Numerous watch mode fixes
Fixed a bug that could cause videos with AC3 audio to freeze on the ATV

3.2.1 - 12/30/12
Fixed bug that would potentially freeze the application
Improved support for MTS video files
Improved and expanded watch mode
subfolders are now "watched"
watched files are no longer moved to a processing folder
Numerous fixes to the setting presets
Presets options now includes "None" for the video track
Expanded filtering capabilities for the selections presets

3.2 - 11/10/12
Code has been completely rewritten from applescript to Obj-C so the chance of lingering bugs is high :-).
Improved general responsiveness of application
Fixed bug causing the app to crash when multiple files were queued.
Numerous fixes and improvements to joining.
Joining (2 files max) can now be tested in the non-registered version. Open a file and then use the Add File button to add a file to join.
Updated and improved the device list, including added support for iPad 3 and ATV 3
Updated encoder. See preferences for the option to use the legacy encoder method.
Added checks for volume permissions and disk space
Updated muxer should fix "Invalid IsoMedia File" errors when editing mp4/m4v files
Resolved registration issue with systems where macports had overwritten "user 501"
Windows can be re-sized.
ASS/SSA subtitles now burned with all formatting retained
Uses fontconfig he says with his fingered crossed
Note, subtitle preferences are ignored since they are defined by the ASS/SSA subtitle track

3.1.4 - 2/3/12
Fixed bug preventing DV video codecs from being opened.
Fixed a bug that caused some audio to be "lost" during processing.

3.1.3 - 1/25/12
Fixed bug preventing the selection of some popups
Fixed bug where the select all subtitles preset was ignored.
Fixed bug preventing audio tracks from being passed through in MP4/M4V videos.
Some bug fixes addressing memory issues which should improve reliability

3.1.2 - 11/9/11
Fixed bug that could disable buttons in the Edit Files tab.

3.1.1 - 11/6/11
Improved handling of the creation of videos with multiple audio tracks
Fixed bug where the added stereo tracks would not be added for batched videos
Can now edit the track titles
Improved checking for muxing errors
Adjusted some window sizes to make the app more user friendly on 1280 x 800 displays
Fixed bug where Play wouldn't work for subtitled videos
Can now edit track titles

3.1 - 10/27/11
Disabled the S, V, and A buttons as they should be in the edit tab
The Quick Tab has been removed to be replaced by ...
Added user definable "presets" to automate which tracks are selected
Added user definable "presets" to automate conversion settings, including the option for letting MP4tools "guess" at the best settings
MP4tools can now be put in a watch mode, where it will monitor a "watch folder" and process any videos added to the folder using the presets

3.0.3 - 8/19/11
Improved chance of passed thru h264 video working with iPhones and iPads
Added ability to edit the language of tracks

3.0.2 - 8/12/11
Reverted back to a more reliable build of mencoder to fix numerous encoding issues
fixed bug where 2-pass encoding might fail under Mac OS X 10.7.x
Fixed an issue where the queue drawer might appear to have locked up when dragging a number of files to MP4tools.

3.0.1 - 7/19/11
Fixed issue where MP4tools might not recognize filenames containing unicode characters
fixed bug where header removal compression warning would be repeatedly displayed

3.0 - 6/30/11 (changes from MKVtools 2.4.4)
Initial release of MP4tools which incorporates all MP4 related features of MKVtools and ...
New registration system tied to the name of the original user account (admin or standard user) which will allow MP4tools to be registered on multiple and upgraded computers (as long as the computers share original account names).
Improved conversion of AVI to MP4.
Improved handling of SSA/ASS subtitles.
Added the capability to mux multiple audio and sub tracks
Updated mencoder and mplayer
added toggle all video/audio/sub buttons
can now input mpeg 2 video tracks
dragging and dropping single audio tracks will add it to the current video
Beta Users: There was a slight change to the registration system that might cause your username to change. E-mail if this happened to you.
Various bug fixes.
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All features

Convert from a variety of video file formats like MKV, MP4, OGM and AVI into MP4 videos.
Can convert most videos without having to re-encode the video track and/or the audio track, so processing takes minutes instead of hours and no quality is lost.
Simplified, intuitive user interface that takes the guess work out of processing MP4 videos.
Ability to convert various surround sound audio to 5.1 AC3 or 5.1 AAC.
Intuitively select desired video, audio and/or subtitle tracks to process, with the ability to verify the selections using video preview.
Use presets for one step encoding for playback on common hardware such as the iPhone and Apple TV.
Define presets for one step automated encoding and track selections settings
Burn (i.e., hard code) subtitle tracks into the video, or mux (soft subtitles) from internal tracks or from external subtitle files commonly found on the internet.
Control the font, size and positioning of the embedded subtitles.
Split MP4 videos into segments of a specified file size or by start/end time.
Adjust the Pixel Aspect Ratio of MP4 videos.
Join MP4 videos.
Extract the selected tracks from MP4 videos as individual video and/or audio files.
Add jobs to a queue either individually or in batches via drag and drop so you can process multiple files overnight (registered copies only).
Apply one setting to a group of files for easy batch creations (registered copies only).
Enter a "Watch Mode" for which MP4tools will process all videos place in a defined folder (registered copies only).

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Acronyms / Also Known As

Emmgunn MP4tools

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