Bytley

Video Compressor

Shrink videos to a fraction of their size for WhatsApp, email or the web — free, in your browser, with nothing uploaded.

Drop a video here or click to browse

Compressed on your device. Nothing is uploaded — no size limit.

Outputs a universally compatible MP4 (H.264 + AAC). Everything runs in your browser — your video is never uploaded.

Frequently asked questions

Are my files uploaded to a server?

No. Everything is processed entirely inside your browser. Your files never leave your device or get sent anywhere.

How much smaller will my video get?

Typically 40–80% smaller depending on the preset and the original file. Screen recordings and phone videos compress especially well.

Will the quality drop?

The High preset is visually near-identical. Balanced is ideal for sharing. Smallest is for chat apps and email limits, where some softness is acceptable.

Why does it take a while?

The video is re-encoded entirely in your browser (that's what keeps it private). Expect roughly real-time speed — a 5-minute video takes a few minutes.