Video Converter
Video EditingConvert video between MP4, WebM, MOV, and MKV formats.
What is Video Converter?
Video Converter changes a clip from one container and codec to another — MP4, MOV, MKV, or WebM — entirely in your browser. Drop in a video, pick a target format, and download the converted file. The MP4, MOV, and MKV targets use H.264 video with AAC audio, while WebM uses VP8 with Vorbis. Because it runs locally with in-browser FFmpeg (WebAssembly), your footage is never uploaded.
How to use Video Converter
3 simple steps to complete your task directly in your browser:
Add your video
Drag a file onto the drop zone or click to browse. Most common formats can be read as input. The in-browser video engine loads in the background while you choose a target.
Pick a target format
Choose MP4 (H.264 / AAC), MOV (H.264 / AAC), MKV (H.264 / AAC), or WebM (VP8 / Vorbis) from the Target format menu. MP4 is the safest choice for broad compatibility.
Convert
Click Convert to run the transcode. Note that WebM (VP8) encoding is noticeably slower than the H.264 targets, so allow extra time for longer clips.
Common uses
- Convert a MOV or MKV file to MP4 for wide device compatibility
- Turn a clip into WebM for lighter, web-friendly playback
- Repackage footage into MP4 before using another VersaTools video tool
- Change an incompatible file into a format your editor or player accepts
- Standardize a mix of clips to a single container and codec
- Get an H.264 MP4 from a format that won't play on a target device
Why choose VersaTools
100% private
Your files are processed inside your browser and are never uploaded to a server.
Free, no account
No sign-up, no watermark, no paywalled “premium” tier. Just open a tool and use it.
Instant
No upload, no queue, no server round-trip — work starts the moment you drop a file.
Runs in your browser
Built on open web standards. Works on any modern desktop browser, nothing to install.
No upload size caps
Nothing leaves your device, so there’s no server file-size limit — only your machine’s memory.
Yours to keep
Results download straight to your device in clean, standard file formats.