Compress Video on Windows

Runs in Edge or Chrome on your PC. Nothing to install, nothing uploaded.

When you load a video, the After size is filled in with a size computed from its resolution and frame rate. Tap 70%, 50%, 30% or 10%, or click the After size and type an exact number in MB. The video is compressed by your PC's video encoder and stays on the PC.

Free Video Compressor

No sign-up. No upload. No size limit.

Drop a video here, or click to choose one MP4, MOV, WebM, MKV and more · any size

Nothing is uploaded — the file is compressed on your device.

Target size

Screen size

Frame rate Format Audio

Original—

After ≈MB

Free to compressNo account, no daily quota, no file size limit.

Nothing is uploadedFiles are processed on your device and never reach a server.

No catch on the outputNo watermark and no size cap.

Updated in the openEvery fix and change is written down on the changelog page.

The built-in options on Windows

Windows 11 includes Clipchamp. It exports MP4 at 30 fps in 480p, 720p or 1080p on the free tier, and 4K needs a paid plan (Clipchamp help, checked September 2026). You choose a resolution, and the file size follows from it. The Video Editor that used to be part of the Photos app has been removed, and Microsoft points people to Clipchamp instead.

HandBrake is free and open source, with many encoder settings. Here the size is the setting: 25 MB for a Gmail attachment (Gmail Help) or 20 MB for a free Discord account (Discord patch notes), both checked September 2026. The Discord page opens at 20 MB.

Compressing in the browser on Windows

Drop the file on the page. Screen size lists Original and each lower step. Under Advanced, Format lists only what this browser can encode on your PC, from MP4 (H.264), MP4 · HEVC, WebM (VP9) and WebM · AV1, so Edge and Chrome may show different choices. MP4 (H.264) is the default and plays in Windows' own apps.

iPhone and GoPro clips are often HEVC. Chrome has no software HEVC decoder, so the page can read them only if the PC has a hardware HEVC decoder. When it can, the result is an H.264 MP4 that plays without Microsoft's HEVC Video Extensions add-on. If the clip needs cutting first, use Trim Video ↗.

No upload, large files

The file stays on the PC, with no account and no watermark. A multi-GB OBS or Game Bar recording works because the output is written to disk as it is produced. A progress window shows elapsed and remaining time and a Stop button, and the screen is kept awake. Closing the tab before you download shows a warning; if you close it anyway, the last result stays in the browser for up to 7 days.

Frequently asked questions

Do I need a graphics card?

No separate card is needed. The Format menu shows what your PC can encode.

Is there a watermark?

No.

Which browser should I use on Windows?

Edge or Chrome. Each lists only the formats it can encode on your PC, so the Format menu may differ between them.

Can it handle iPhone HEVC videos that Windows won't play?

Only on a PC with a hardware HEVC decoder, since Chrome has no software one. If the page says "This browser cannot decode this video", compress the clip on the iPhone in Safari instead.