Compression

Squoosh

Web-based image compression tool by Google Chrome Labs. Reduces file size while maintaining high quality. Supports formats like WebP, AVIF, JPEG, and PNG. All processing is done locally in the browser, keeping images secure on your device.

Blazing Fast Image Compressor (www.mach-tools.net)

A browser-based bulk image compression and resizing tool. Supports JPG, PNG, WebP, and AVIF, with options for WebP conversion, maximum width resizing, and bulk ZIP download. No registration required, completely free.

Image Compression (yamada-tools.jp)

Free online image compressor that reduces JPEG, PNG, and WebP file sizes by up to 80% while maintaining quality. Supports batch processing of up to 20 images at once with a quality adjustment slider. All processing is done in the browser.

PDF Compression (yamada-tools.jp)

Free online PDF compressor that reduces file sizes by up to 70-80%. No registration required. Files are processed on Japanese domestic servers with SSL encryption and automatically deleted after 60 minutes. Supports PDF files up to 50MB.