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Compress video

Reduce video size and choose how much quality to keep, then compare the result. It’s free, with no watermark.

Files stay on your device

Drop videos to compress

Choose a quality level or an output size limit, then compare the finished file.

MP4, MOV, MKV, WebM, MPEG-TS, and 3GP videos. You can also drag in a whole folder.

How to compress a video online

Choose a smaller, balanced, or higher-quality export, then compare the original and finished file sizes. This free online video compressor reduces the file on your device, so there is no upload step.

  1. Step 1

    Choose a video
    Pick the file you want to make smaller.

  2. Step 2

    Choose the quality
    Select the size and quality balance you prefer.

  3. Step 3

    Download the result
    Compare the sizes and save the smaller video.

What to expect

Supported inputs
MP4, MOV, MKV, WebM, MPEG-TS (.ts, .mts), and 3GP videos. AVI, WMV, and FLV files can’t be opened yet.
What happens
The video is saved again in its original format. Smaller makes the biggest cut, Balanced keeps most of the detail, and Higher stays closest to the original. Smaller also brings the picture down to 720p and Balanced to 1080p, so a 4K video comes out at HD size. Higher keeps up to 4K. You only get the file if it ends up smaller than the original.
Limits
Codec support and large-file capacity depend on your browser and device memory. If the encoder overshoots the source size, the export fails instead of returning a larger file.

For one format, size, or task

The same tool, with the settings already picked.

For a platform

To a size

Also

Your files stay on your device

Your computer does the work, so the file never has to be uploaded, and that’s also why it’s free: there’s no server time for us to pay for. You don’t need an account, and nothing you make gets a watermark.

“Thank you for an easy way to reduce my video file size!”
Paul, a supporter

Questions

Lower quality uses a smaller bitrate, which usually reduces detail. Compare the original and compressed sizes after export, then try another quality if you want a different tradeoff.

Use a compress-to-size page, such as 8 MB, 10 MB, or 25 MB, when you need a verified size cap. This page is for choosing a quality level, not guaranteeing a byte limit.

For H.264 MP4, about 4–8 Mbps looks good at 1080p, 2–4 Mbps at 720p, and 20–40 Mbps at 4K. Fast motion needs the top of the range; screen recordings and talking heads look fine near the bottom. HEVC and AV1 reach similar quality at roughly half the bitrate.

Picture messages (MMS) through phone carriers are usually capped around 1 MB or less, so use a compress-to-size page with a small limit and trim the clip first. iMessage and RCS chats accept much larger files.

Phones record at high bitrates, often 4K at 60 fps, so a minute can take hundreds of megabytes. Screen recordings keep every frame sharp for text. Both usually shrink a lot with little visible loss.

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