Compressor.io

Compress and convert images locally – nothing gets uploaded. Free in-browser image compressor and converter. Files processed locally with WebAssembly and never uploaded. Compress PNG/JPG, HEIC→JPG, WebP/AVIF, resize, target-size compress. No sign-up, no watermark.

Image optimization service for WordPress.

Image optimization and compression service.

Image compression web app by Google.

Web service for compressing PNG and JPEG images.