jpegoptim.com brings the classic command-line idea of jpegoptim to the browser: re-encode a JPEG with optimised Huffman tables and progressive scan order so it downloads smaller and renders faster, while holding image quality high. It's the right tool when you want lean JPEGs for a website or an asset pipeline without dropping visible quality.
Optimised and progressive encoding
Two things make a JPEG smaller and faster without touching the picture much: optimised entropy coding (better Huffman tables) and progressive encoding (the image loads in increasingly sharp passes instead of top-to-bottom). This optimiser applies both at a high quality setting, so the file shrinks and feels faster on slow connections while looking the same.
For developers and content pipelines
Optimising JPEGs is a standard step in shipping fast pages. If you need a more aggressive size cut, drop the quality with aggressive compression, or move to WebP for the smallest modern format. The resizer handles oversized source images.