Batch Video Converter
Convert multiple videos simultaneously between MP4, WebM, and MOV formats. 100% in-browser. Download as ZIP.
Drag & Drop multiple videos here
or click to browse (MP4, WebM, MOV, MKV)
Why use client-side batch video conversion?
Converting video formats traditionally required uploading gigabytes of private footage to cloud conversion services or installing bloated desktop utilities that bundle ad software. Client-side conversion uses WebCodecs, the browser API that exposes your device's own hardware video encoder, so files are converted locally and several times faster than they play. A file already in the format you asked for is simply rewrapped, with its picture copied rather than re-encoded.
Whether you are converting iPhone MOV clips to universally compatible WebM files for a website, compressing a folder of MP4s to 720p, or converting screencasts for presentation decks, our tool encodes each clip sequentially and generates a clean, organized ZIP file containing all converted assets.
Frequently asked questions
How many videos can I convert at once?
You can convert dozens of files. The tool processes them sequentially so your device memory remains stable.
Are my original video files modified?
No. Converted videos are generated fresh and packaged into a ZIP. Your original files on disk are never altered.
Which format should I choose: WebM or MP4?
WebM offers superior compression for websites and browsers; MP4 provides universal playback across older smart TVs and legacy media players.
Is there any file size limit for conversion?
No artificial limits exist. The conversion runs entirely on your local hardware with zero bandwidth or file size restrictions.