Convertitore da MP4 a WebM
Da MP4 a WebM
Funziona nel browser · Nessun caricamento
Lo strumento e le istruzioni di questa pagina sono per ora in inglese. Funziona allo stesso modo: tutto avviene nel browser.
Drag & drop an MP4 video here
or
MP4 or M4V videos · converted to WebM
Your files stay on your device. Nothing is uploaded.
Il tuo browser è troppo vecchio per questo strumento. Aggiornalo o usa una versione recente di Chrome, Edge, Firefox o Safari.
- Nulla lascia il tuo dispositivo
- Nessun limite di dimensione imposto da un server
- Nessuna registrazione, nessuna filigrana
- Gratis
How to convert MP4 to WebM
- Choose your MP4 video.
- The output is set to WebM; choose the quality used if the video has to be re-encoded.
- Press Convert and download the WebM file.
Good to know
- The video is re-encoded to VP9 (or VP8) and the sound to Opus.
- When the video and sound can be copied into the new format as they are, they are not re-encoded: no quality loss, and very fast.
- Best in current Chrome and Edge; recent Safari and Firefox work too.
Your videos stay on your device
Everything happens in your browser. Your videos are never uploaded, and this site's security policy blocks the page from sending files anywhere.
Domande frequenti
Is there a size limit?
No server-imposed file size limits. The practical limit is your device's memory: several gigabytes work on most computers.
Are my videos uploaded?
No. They are converted in your browser and never sent anywhere.