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Free tool

Compress Video Online — Free, In Your Browser

Compress a video directly in your browser, with a before/after preview to judge the quality before saving anything. The same workshop converts to MP4 or WebM, crops for each network — 9:16 vertical, 1:1 square, 16:9 — extracts the MP3, and transcribes speech into searchable text with SRT or VTT subtitles. Your files are processed on your device and your library stays there too; the one exception, transcription, is announced: the audio goes through a secure service that deletes it immediately.

Déposez une vidéo, un audio ou une image

ou cliquez pour choisir — plusieurs fichiers acceptés

MP4MOVWebMMKVMP3WAVM4AJPGPNGWebP

Le contenu est encore sur une plateforme (lien Instagram, TikTok, YouTube, Facebook, X — ou les stories d’un compte) ? Passez par le Téléchargeur — le fichier reçu apparaît ici, dans la même bibliothèque.

Votre bibliothèque

Lecture de la bibliothèque…

Vos fichiers restent sur cet appareil : le traitement (conversion, recadrage, compression, extraction) tourne dans votre navigateur, rien n’est hébergé chez nous. Une exception : la transcription envoie l’audio à un service tiers sécurisé qui le supprime aussitôt.

Un média gardé est rangé dans le navigateur (IndexedDB) : une navigation privée ou un nettoyage du navigateur l’efface. Exportez ce qui compte.

How to compress a video in 3 steps

  1. Import your media

    Drop a video or an image, or reopen one from your on-device library — the downloader can fill it from a link. The processing engine (about 9 MB) is fetched once, then reused.

  2. Choose the transformation

    Compress with a before/after preview, convert to MP4, WebM, JPG, PNG or WebP, crop to 9:16, 1:1 or 16:9, extract the audio as MP3, or transcribe the speech.

  3. Export the file

    Download the result in the chosen format. Nothing was uploaded along the way — the work happened in your browser, on your device.

Why use this media workshop

Frequently asked questions

Are my videos uploaded to a server?

Not for compression, conversion, cropping or MP3 extraction: those run in your browser. The one exception is transcription — the audio goes through a secure third-party service that deletes it right after — and it is announced before you start.

Is it really free?

Yes: no account and no signup. The processing engine (about 9 MB) downloads once into your browser, then keeps working.

Which formats does it handle?

Video exports to MP4 or WebM; images to JPG, PNG or WebP. Cropping offers the network ratios: 9:16 vertical, 1:1 square, 16:9 horizontal.

How much can I compress a video without ruining it?

That depends on the video — which is why the workshop shows a before/after preview: you compare the result at the chosen size before saving anything.

Can I extract the audio from a video?

Yes — the MP3 track is extracted on your device, without any upload.

Can I get subtitles for my video?

Yes: transcription produces text you can search, then export as TXT, SRT or VTT subtitles. This step uses a secure third-party service that deletes the audio immediately.