Free Video Compressor

Shrink a video’s file size, right in your browser. Pick a resolution and quality.

Drop a video here or click to choose files

Runs entirely on your device using your browser’s built-in video engine (WebCodecs). Needs a recent Chrome, Edge, Safari, or Firefox on desktop.

Drop a video, pick a maximum resolution and a quality level, and optionally trim it too. The result downloads as a new, smaller file — the original is untouched.

This uses your browser’s own hardware-accelerated video engine (WebCodecs) to re-encode the video, the same technology used by professional video editors on the web, rather than a heavy download of a video-processing program.

How to use it

  1. Drop your video.
  2. Pick a resolution and quality (and trim it, if you like).
  3. Download the smaller file.

Frequently asked questions

How much smaller will my video get?

It depends heavily on the source: a phone video at very high bitrate can easily shrink to a third of its size or more at “Medium” quality with little visible difference. Lowering the resolution too (not just quality) usually has the biggest effect on file size.

What format do I get back?

MP4 (H.264 video, AAC audio) when your browser supports it, which is almost always the case — this plays everywhere, including social media uploads. If it can’t, it falls back to WebM (VP9/Opus).

Why did my browser say it can’t do this?

Video compression here relies on WebCodecs, a browser feature for encoding video. It’s supported by all current versions of Chrome, Edge and Safari, and Firefox on desktop; older browsers and Firefox on Android don’t support it yet.

Is my video uploaded anywhere?

No. Compression happens entirely on your device; the file never leaves your browser.

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