Free tool
Free video converter that runs in your browser
Convert a video between formats without uploading it.
Your video
Drag a file here, paste it, or choose one.
.mov, .webm, .avi, .mkv, .mp4, .m4v. Up to 500 MB.
Up to 10 minutes long.
Your video never leaves your browser. The conversion runs on this machine.
Result
Worked example
Measured on our own 27 second launch film at 1920 by 1080, converted to MOV.
Source MP4
7.6 MB
MOV, H.264 and AAC
3.7 MB
The file got smaller because it was re-encoded, not because MOV is a smaller format. A container is a wrapper. What decides the size is the codec and the quality setting inside it.
1. Add your file. 2. Pick the output. 3. Convert locally. 4. Download it.
What Interlace does
Skip the screen recording. Start from the document.
- Upload a PDF, SOP or slide deck
- Interlace writes the script, draws each scene and adds the voice
- Download an MP4 for your LMS or intranet
Real Interlace output, unedited. Shown silent and sped up.
Your file
onboarding-walkthrough.mov
2:14 screen recording
Questions
Asked and answered
No. The file is read by the page, handed to ffmpeg compiled to WebAssembly, and written back out, all on your own machine. There is no upload step, and closing the tab discards everything.
MP4 with H.264 and AAC, unless you have a reason not to. It plays in every browser, every LMS and every phone. Pick WebM when you want a smaller file for the web and can wait for the encode. Pick MOV when an editor on your team asks for it.
The WebM encoder is heavier than H.264 and it is running single threaded in a browser tab. A clip that takes one minute as MP4 can take several minutes as WebM. We warn you before you start.
Yes. MP4 and MOV get AAC at 128 kbps, WebM gets Vorbis at 128 kbps. A file with no audio track stays silent.
500 MB and 10 minutes. Everything runs inside one browser tab, and a tab has a fixed memory budget. Past those limits the run gets slow or fails outright, so a desktop encoder is the better tool.
Turn this into a video
Create an account and start from a document, script, or prompt.