Video tool
Convert MP4 Video to QT on Your Device
Make a QT version of an MP4 in your browser for legacy QuickTime applications that identify files with a QT extension. The source video stays on your device.
- Runs in your browser
- Private processing
- No install
- Files stay on device
Route MP4 → QT
or drop here · up to 500 MB
Preview (optional)
When your browser supports it, your video appears here. If preview does not load, you can still convert your file normally.
Preview is not available for this file
No worries — your video can still be converted. Set your file name and click Convert when you are ready.
Quick use cases
- Prepare a QT copy for an older QuickTime-based workflow
- Meet a delivery specification that lists QT
- Test an MP4 asset in a QT-compatible playback setup
Workflow
- Upload the MP4 video
- Choose a name for the QT output
- Convert the video to QT
- Download the QT file and verify it
Processing notes
- Conversion uses your device processor and keeps the source file local.
- Large or high-resolution MP4 files need more memory to encode as QT.
- Keeping the tab active can help a long conversion complete reliably.
Compatibility notes
- QT is suited to legacy QuickTime applications that identify files with a QT extension.
- Many current apps expect MOV rather than the less common QT extension.
- Confirm the destination accepts QT, not just the codec used by the MP4.
Troubleshooting
- Conversion slow? Close processor-heavy apps or test a shorter section first.
- QT will not open? Try a player built for QT and inspect the required codecs.
- Delivery rejected? Compare the file's codec, resolution, and audio settings with the QT specification.
MP4 to QT converter FAQ
Why convert MP4 to QT?
Convert when a player, editor, archive, or delivery system explicitly requires QT instead of MP4.
Does the MP4 leave my device?
No. The conversion runs locally on your device rather than sending the source video to a processing server.
How do I verify the QT output?
Open it in the destination player or editor, then check picture, sound, duration, and synchronization before delivery.