Why this tool exists
WebPcompress was built on a simple belief: you shouldn't have to hand your photos to a stranger's server just to make them smaller. Most online compressors upload your files, process them in a data center, and promise to delete them later. You have no way to verify that promise.
Modern browsers are powerful enough to do professional-grade image compression locally — so that's exactly what this tool does. When you drop an image onto this site, it is decoded, resized and re-encoded entirely on your own device using the browser's built-in Canvas API. Nothing is transmitted. Nothing is stored. There is nothing for us to delete, because we never had your files in the first place.
What we care about
- Privacy first. The architecture makes snooping impossible, not just against policy.
- Genuinely free. No trial limits, no watermarks, no "pro" upsell. The site is supported by unobtrusive advertising and will stay free.
- Speed. No upload and download round-trip means results in seconds, even for a 20-image batch.
- Simplicity. One page, three controls, done. No account, no email, no dark patterns.
How the compression works
The tool draws each image onto an in-memory canvas (optionally scaled down to your chosen maximum width) and re-encodes it as JPEG, WebP or PNG at your chosen quality level. For a deeper explanation of the trade-offs, read our Image Compression Guide or browse the blog.
Who's behind this
WebPcompress is built and maintained by Surya Prakash, an independent web developer. Having spent years watching "free" online tools quietly harvest whatever users upload, he built this compressor the way privacy tools should work: the processing happens on your device, so trust isn't required — it's architectural. The site is developed actively, and every feature request that lands in the inbox gets read.
Get in touch
Feedback, feature requests and bug reports are always welcome — see the contact page.