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MP4 to WebM

Convert an MP4 to a smaller VP9 WebM for the web — in your browser.

Chagua faili la video

MP4, MOV — converted to VP9 / Opus WebM in your browser

Bofya kuchagua, au dondosha faili hapa

Jinsi ya MP4 to WebM

  1. 1

    Add your MP4

    Drop in the .mp4 or .mov file — it's read in your browser.

  2. 2

    Convert

    Click Convert to WebM; the video is re-encoded as VP9/Opus with the WebCodecs API.

  3. 3

    Download

    Save the WebM — smaller than the MP4 and ideal for websites.

Related PDF tools

Compress VideonewShrink an MP4, MOV or WebM by re-encoding it at a lower bitrate — in your browser, nothing uploaded.WebM to MP4newConvert a WebM video to an H.264 MP4 that plays everywhere — in your browser.Video to GIFnewTurn a short video clip (MP4, MOV, WebM) into an animated GIF — in your browser.Trim VideonewCut a video down to just the part you want, in your browser.

MP4 to WebM — maswali yanayoulizwa mara kwa mara

Is my file uploaded?+

No. The MP4 is decoded and re-encoded to WebM entirely in your browser with the WebCodecs API.

Why convert MP4 to WebM?+

VP9 WebM is typically 20–40% smaller than H.264 at the same quality and is well suited to websites and open-source workflows.

Does WebM play everywhere?+

It plays in every modern desktop and Android browser, but not natively on iOS Safari or in many video editors — keep an MP4 too if you need those.

Which browsers work?+

Chrome, Edge and Safari 17+ can decode the MP4 and encode VP9.

Je, mnapakia faili zangu kwenye seva?+

Hapana — kila zana hapa inachakata faili zako kikamilifu kwenye kifaa chako, na hakuna kinachopakiwa kwenye seva. Tofauti pekee ni zana za AI, ambazo hutuma maandishi yaliyotolewa (si faili) kwa Claude ili kufanya kazi yake.

Je, kuna kikomo cha ukubwa wa faili?+

Hatuweki kikomo cha bandia, lakini kwa kuwa uchakataji hufanyika kwenye kivinjari chako, faili kubwa sana (zaidi ya 500MB au kurasa 1,000+) hupunguzwa na kumbukumbu ya kifaa chako, si sisi.