100% Client-Side Processing · Zero Server Uploads · Fast WebAssembly Codecs
Zero Upload · Total Privacy
WASM background processing
Batch JPG / PNG / WebP
Loading WebAssembly processing engine...
Frequently Asked Questions
Learn how Tiny Image balances maximum compression with total privacy
Never. Tiny Image is a 100% client-side web application. Compression runs entirely within your browser using WebAssembly. No image data or file names are ever sent to any remote server.
Static JPEG/JPG, PNG and WebP inputs are supported. Keep their format or convert to JPEG or PNG. APNG, animated WebP and GIF are not supported.
PNG optimization is lossless when keeping the original format without resizing. Resizing changes pixels. Explicit PNG conversion below quality 100 applies lossy color quantization.
Lossless PNG optimization keeps the original file when it cannot reduce size. Lossy encoding or resizing can produce larger files; the interface shows the actual size change.
No. Because JPEG does not support transparency, Tiny Image automatically composites transparent pixels onto a pure white background, preventing ugly black borders.