Compress Images Online

Reduce image file size by up to 90% without losing quality. Supports JPEG, PNG, WebP, GIF.

Drop image files here or click to upload

Up to 20 files, 50MB each. Compression happens in your browser.

Quality:80%

Files stay on your deviceFree, no limits

Compress by format

How image compression works

SmallFile uses smart lossy compression to reduce image file sizes without visible quality loss. JPEG images are re-encoded with optimized Huffman tables and quantization matrices. PNG images are reduced from 24-bit to 8-bit color palettes where possible, dramatically cutting file size. WebP images benefit from advanced predictive coding. All processing happens entirely in your browser using WebAssembly - your files are never uploaded to any server, making SmallFile the most private image compressor available.

FAQ

How much can images be compressed?

JPEG images typically compress 40-60%. PNG files can be reduced by 50-80%. Results depend on the image content and how much it was already optimized.

Will compression reduce image quality?

SmallFile uses smart compression that removes data the human eye cannot perceive. In most cases the compressed image looks identical to the original.

Is there a file size limit?

Each file can be up to 50MB. You can compress up to 20 files at once. All processing is free with no daily limits.

Which format should I use for web?

For photographs use JPEG or WebP. For graphics with transparency use PNG or WebP. WebP offers the best compression for both types but has slightly less universal support than JPEG.