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Compress Video

Shrink an MP4, MOV or WebM by re-encoding it at a lower bitrate — in your browser, nothing uploaded.

Seleccioneu un fitxer de vídeo

MP4, MOV, WebM — re-encoded smaller in your browser

Fes clic per triar o deixa anar un fitxer aquí

Com Compress Video

  1. 1

    Add your video

    Drop in an MP4, MOV or WebM — it's decoded in your browser, never uploaded.

  2. 2

    Choose quality and size

    Pick a quality level, optionally cap the resolution at 1080p/720p/480p, and drop the audio if you don't need it.

  3. 3

    Compress and download

    Click Compress video; it's re-encoded with WebCodecs at a lower bitrate and you download the smaller file.

Related PDF tools

WebM to MP4newConvert a WebM video to an H.264 MP4 that plays everywhere — in your browser.MP4 to WebMnewConvert an MP4 to a smaller VP9 WebM for the web — in your browser.Trim VideonewCut a video down to just the part you want, in your browser.Mute VideonewRemove the audio track from a video, in your browser.

Compress Video — preguntes freqüents

Is my video uploaded?+

No. The video is decoded and re-encoded entirely in your browser with the WebCodecs API — nothing is sent to a server.

How much smaller will it be?+

It depends on the source. A phone clip recorded at a high bitrate often drops 40–70% on the Balanced setting; dropping the resolution to 720p or 480p shrinks it much further. The tool shows the before/after size.

Why does it take a while?+

Re-encoding decodes every frame and encodes it again. It's faster than real time on most machines, but a long 4K clip can still take a few minutes. Lowering the resolution speeds it up a lot.

Which browsers work?+

Chrome, Edge and Safari 17+ have full WebCodecs video encoding. Firefox support is newer and partial; the tool tells you if your browser can't do it.

Pugeu els meus fitxers a un servidor?+

No: cada eina aquí processa els teus fitxers totalment al teu dispositiu, i no es puja res a un servidor. L'única excepció són les eines d'IA, que envien el text extret (no el fitxer) a Claude per fer la seva feina.

Hi ha un límit de mida de fitxer?+

No imposem cap límit artificial, però com que el processament passa al teu navegador, els fitxers molt grans (500+ MB o 1.000+ pàgines) estan limitats per la memòria del teu dispositiu, no per nosaltres.