Does my video get uploaded?

No. The video is processed entirely in your browser and never leaves your device.

Will the duration or frame rate change?

No. Duration and frame rate always stay the same. Only the resolution and bitrate may change, and always with a clear warning first.

Why was the resolution reduced?

Lower bitrates at high resolutions produce unwatchable video. When the target requires it, the resolution steps down with one clear warning before processing.

Which formats are supported?

MP4 and MOV files with H.264 video — the most common phone and camera format — are verified. Other codecs are marked unverified until tested.

Compress123 › Compress video online›Compress video online

Compress video online

Reduce the size of a video online for free. Duration and frame rate stay untouched, with one clear warning before any quality tradeoff.

Target Size

Quick Select

Select a video to see its target range.

How to compress your image

Choose a supported image.
Check or change the size limit.
Compress and download the JPG result.

Limitations

The result is a JPG file. Compression can reduce resolution or detail, and acceptance by a third-party site is not guaranteed.

Frequently asked questions

Is the image uploaded to a server?

No. Decoding, resizing, and compression happen locally in your browser.

Will the result be exactly the size I chose?

The tool targets a maximum value and keeps the result under it when possible.