MOV – MP4 Conversion & Reverse Conversion
Convert MOV to MP4, and MP4 to MOV, directly in your browser
Features
Bidirectional MOV and MP4 conversion
Auto mode converts your selected video to the opposite format seamlessly
Image quality preserved without re-compression
Videos that play as-is are not recreated, completing in just seconds
Convert only unplayable video
Transform iPhone HEVC video into a format viewable on Windows
See progress and pause conversion anytime
View conversion percentage and elapsed time, and stop whenever you want
How to Use
Select conversion direction from dropdown
Choose from Auto, MOV → MP4, or MP4 → MOV; Auto is the default
Select the video file to convert
Select one MOV or MP4 file by clicking or drag & drop; up to 500MB (300MB for iPhone/iPad) and 10 minutes
Run conversion and check progress
Press the convert button to see progress and elapsed time; use the stop button to pause midway if needed
Preview and save
Play to verify, then download; on iPhone, save to Photos app via the share sheet
Use Cases
Play iPhone video on PC
Convert MOV shot on iPhone into MP4 playable on Windows computers at work or school
Post to social media and video sites
Convert MOV that wouldn't upload into MP4 and post to X, Instagram, or YouTube
Use as material in Mac editing software
Unify MP4 materials into MOV format for editing in iMovie or Final Cut Pro
Share meeting or class recordings
Convert recorded MOV into MP4 so recipients can open it via email or chat
Knowledge Base
Difference between MOV and MP4
MOV and MP4 are both container formats that bundle video and audio into a single file; the container format is separate from the compression method inside.
- MOV：MOV is the QuickTime format developed by Apple. Videos shot or exported on iPhone and Mac typically have the .mov extension.
- MP4：MP4 is an international standard format based on MOV, and is natively supported by Windows computers and most social media and video sharing services.
Why iPhone videos don't play on Windows
iPhone cameras record video in HEVC (H.265), an efficient compression format by default, which achieves equivalent quality to H.264 at about half the file size. Without additional codec support, Windows cannot play HEVC video, and simply changing the container to MP4 may not solve the problem.
Difference between container conversion and re-encoding
- Container conversion only：Container conversion only remuxes compressed video and audio data into a new format, preserving original quality and sound, and completes in seconds.
- Re-encoding：Re-encoding decompresses video, re-compresses it using a different codec like H.264, taking time proportional to video length, and may slightly alter quality.
Safety and Privacy
Runs entirely in your browser
Your input data is processed only within your browser and is never sent externally.
Processing only in your browser
Video conversion is processed entirely within your browser, and input data is not sent to any server.
Communications encrypted with HTTPS
Page loading is also encrypted by TLS, and content cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
No automatic saving of results
Selected and converted videos and input suggestions are not stored on the server.
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Updates
- update #401
MOV - MP4 conversion added. Convert iPhone MOV files to MP4 playable on Windows and SNS, or convert MP4 to MOV in your browser
Featured Tools
RAKKOTOOLS is free to use!
Available free of charge for individuals and corporations, commercial and non-commercial use alike.No prior permission or usage application is required. Feel free to use it in various situations.
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Introduction on Web, books, and SNS
Feel free to introduce it as a useful tool on web media, books, SNS, and other platforms.
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Can be used for commercial purposes such as research, calculation, processing, and conversion in business and production.
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Link to RAKKOTOOLS in the description, or Mention or display that you are using RAKKOTOOLS in the stream or video.
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This notice is a translation of the original Japanese text. If there is any discrepancy between the translation and the original, the Japanese original takes precedence.