What is this tool?
Converts videos into the container your browser can record, redrawing frame by frame and keeping the original audio.
What is it for?
- Turn a MOV or MKV into WebM or MP4 so it opens in any browser.
- Standardise a batch of videos received in different formats.
- Produce a version compatible with a platform that rejects the original container.
Step by step
- 1Upload one or several videos.
- 2Choose the output container from the ones the browser offers.
- 3Start processing and keep the tab open.
- 4Download the result or all of them in sequence.
How to use it
Output container
Chrome and Firefox record WebM; MP4 appears when the browser can record it. The list shows only what works on your device.
Audio and duration
The original track is preserved and duration stays the same. Processing runs at video speed because recording happens in real time.
Limits
Up to 2 GB per file, 30 files per batch and 3 hours of length. Beyond that the browser cannot sustain the processing.
Examples in practice
Phone video in MOV
The MOV recorded on the phone is converted to MP4 and starts opening in any computer's browser.
Course batch
Five lessons in MKV join the queue and come out as WebM, ready for the internal platform's player.
Frequently asked questions
Is the original file changed?
Never. Conversion always produces a new file.
Why does conversion take as long as the video?
Because the browser records in real time: each second of output needs a second of processing.