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Compress Video

Shrink an MP4, MOV, or WebM down to a smaller file without leaving your browser.

Video
Drop a video here or click to browse
or paste from clipboard (Ctrl+V) · MP4, MOV, WebM, MKV
Files stay in your browser. Nothing is uploaded.
Quality

How to compress a video online

  1. Add your video

    Drop the video you want to shrink onto the tool, or click to pick it from your device. It takes MP4, MOV, WebM, MKV, and AVI.

  2. Pick a quality level

    High keeps the most detail, Balanced suits sharing, and Small produces the lightest file.

  3. Compress

    Click Compress video. The file is re-encoded to H.264 inside your browser; the engine downloads once and stays ready for the session.

  4. Check the savings and download

    The result card shows the original size, the new size, and the percentage saved. Click Download to keep the smaller MP4.

Why use this tool

Three honest quality presets

High, Balanced, and Small are three fixed H.264 quality levels, so you know exactly what trade-off you are making instead of guessing at a slider.

Standard MP4 out

Every result is H.264 video with 128 kbps AAC audio, a combination that any device, editor, or platform accepts.

Savings shown up front

Original size, compressed size, and percentage saved appear before you download, and the tool tells you when a file was already too efficient to shrink.

Most formats accepted

MP4, MOV, WebM, MKV, AVI, and other common containers all go in; one MP4 comes out.

Re-encoded on your machine

The whole job runs in the browser on your machine, so the footage never reaches a server.

Free without a watermark

No signup, no logo stamped on the video, no per-day limit.

About this tool

This compressor reduces video file size by re-encoding with the H.264 codec, entirely in your browser. You pick one of three fixed quality levels: High keeps the most detail, Balanced is the middle ground, and Small pushes hardest for a light file. Audio is re-encoded as 128 kbps AAC, and the output is always a standard MP4.

The usual reason to compress is a delivery limit: an email attachment cap, a messaging app that refuses large files, or an upload form with a size ceiling. Phone footage is a frequent candidate, since modern cameras record at bitrates far higher than screen viewing needs. Expect a short clip to finish in seconds and a long, high-resolution video to take minutes, with a desktop browser coping better than a phone. The result card reports the original size, the new size, and the percentage saved, so you can judge whether to retry at a different level. Files that were already efficiently encoded may not shrink, and the tool points that out when it happens.

The video is processed on your device and never uploaded. Cutting footage is often the biggest saving of all, so trim the video down to the part you need before compressing. If the goal is a different container rather than a smaller file, use convert to MP4, and for photos and screenshots there is a separate image compressor.

Frequently asked questions

How do I compress a video?
Drop a video onto the tool or click to browse, choose a quality (High, Balanced, or Small), then click Compress video. The tool re-encodes it with the H.264 codec to shrink the file and shows you the original size, the new size, and how much you saved. Click Download to save the smaller file.
Is my video uploaded to a server?
No. The entire compression runs locally in your browser. Your video never leaves your device, is never uploaded, and is not stored or logged anywhere. The first time you compress, the tool downloads the video engine once; after that it stays ready for the rest of your session.
What is the difference between High, Balanced, and Small?
They set the H.264 quality level. High keeps the most detail for the largest file, Balanced is a good middle ground for sharing, and Small squeezes the file down the most at some loss of detail. More detail means a larger file. Balanced is the default and works well for most videos.
Which video formats are supported?
You can drop in MP4, MOV, WebM, MKV, AVI, and most other common video files. The output is always an MP4 with H.264 video and AAC audio, which plays on virtually every device, browser, and editor.
Is there a limit on video size or length?
There is no fixed limit, but because everything runs in your browser using your device memory, very large or very long videos take longer and use more RAM. Short clips compress in a few seconds; long, high-resolution videos can take a minute or more. For very large files, a desktop browser will handle them more comfortably than a phone.
Will compressing reduce the quality of my video?
Compression re-encodes the video, so there is some quality loss, but at the High and Balanced levels it is hard to notice for everyday footage. If you need the smallest possible file for email or messaging, Small trades a little more detail for a much smaller size. You can always try a higher quality and re-compress if needed.

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