Video tool · 100% free

MP4 to WebM

Convert MP4 video to WebM for efficient web playback and modern browser delivery.

Built for: mp4 to webm

Deleted as soon as you download itFree · fair-use only

Drop video files hereWEBM output · up to 100 files

Quality CRF (lower = higher)Encoder preset

Included in this tool

MP4 inputWebM outputWeb deliveryBatch conversion

What this tool includes

Everything you need, without a paywall.

MP4 input

WebM output

Web delivery

Batch conversion

This tool is free, needs no account, and adds no watermark to your result. Text operations run on your device where the browser can do the work safely; file conversions run on the server and your upload is deleted as soon as your download finishes.