Free · No sign-up · No watermark

Free online video compressor

Make videos smaller for email, WhatsApp, Discord or uploads. Compression runs in your browser, so your file stays private and there's no watermark.

  • No upload, runs on your device
  • Pick a quality or a target size
  • Exports MP4

Your file is processed on this device and is never uploaded.

or drag and drop it here

MP4, MOV, WebM, MKV · up to 4 GB

How to use it

  1. Choose a video

    Open an MP4, MOV, WebM or MKV file. It stays on your device.

  2. Pick the size

    Choose a compression level, or type a target size, and lower the resolution if you like.

  3. Compress and download

    Your browser re-encodes the video. Download the smaller MP4 when it's done.

Frequently asked questions

Is my video uploaded?

No. Compression runs entirely in your browser using your device's video encoder. The file is never sent to our servers.

How much smaller will my video get?

It depends on the original. Phone recordings at 1080p often shrink by half or more at the balanced level, and choosing a lower resolution saves even more. If you set a target size, we choose a bitrate to land close to it.

Will the quality drop?

Compression always removes some detail. High quality stays visually close to the original; smallest file is meant for quick sharing. Lowering the resolution, for example to 720p, saves a lot of space with little visible loss on phones.

How long does it take?

Your device re-encodes every frame, so on most computers it takes about as long as the video plays, often less with hardware acceleration. Keep the tab open until it finishes.

What format do I get?

An MP4 file, normally with H.264 video and AAC audio, which plays on practically every phone, browser and social platform.

Want to do more with your video?

Turn a photo into a video, or restyle a clip, with ViNano's AI video tools.

Try AI video