Browser Tools That Never Upload Your Files
Free utilities that run completely inside your browser tab. Your files are processed by your own device and saved straight back — nothing is uploaded, queued, or stored anywhere.
The tools
Video compressorMP4 · MOV · WebMShrink video with real H.264 re-encoding at three quality presets. Built on WebCodecs, so the encoder is the one already inside your browser — no upload, no watermark, no account.Open the tool →Why these tools run in the browser
Every traditional online compressor works the same way: your file is uploaded to somebody's server, queued behind other people's jobs, processed, and offered back as a download. That means waiting on your connection both ways, size caps, watermarks on free tiers, and a copy of your footage on a machine you know nothing about.
The tools on this page take the other road. Modern browsers carry a complete video encoder (WebCodecs), so the heavy work happens on your device at your device's speed. There is no queue to sit in and no server to trust, and the tool keeps working with the network cable pulled out.