Free tools
Compress files free, right in your browser.
No account, no upload queue. Drop a file, get a lighter one back, and see exactly how much it shrank. Every tool here runs on the same compression engine as the Robin API.
Compress PNG
Re-encode PNG images to a smaller file, with a quality target you control.
Compress JPG
Shrink JPG and JPEG photos by tuning quality, keeping the detail that matters.
Minify JSON
Strip whitespace and formatting from JSON so payloads travel lighter.
Compress MP3
SoonShrink MP3 audio by re-encoding at a lower bitrate, with the voice kept clear.
Want this via API?
The same compression, one POST away. Grab a key and drop Robin into your pipeline.