JPEG XL Converter
Converts to and from JPEG XL, including lossless JPEG recompression that can be undone exactly.
This one is not built yet.
It is a real entry in the catalogue rather than a placeholder — it appears in search, and it already contributes to the chains below, so the roadmap and the product are the same object and cannot drift apart. Difficulty is rated 4 out of 5.
Feed it from
PNG Compressor
Quantises the palette and rewrites the deflate stream to shrink a PNG without changing its dimensions.
JPEG Compressor
Re-encodes a JPEG at a chosen quality with a live before/after size and a difference view.
WebP Converter
Converts images to or from WebP, with a quality slider and lossless mode.
AVIF Converter
Converts images to or from AVIF and reports the size against the JPEG or WebP equivalent.
Next
These accept what this tool produces, so the result can go straight in.
AVIF Converter
Converts images to or from AVIF and reports the size against the JPEG or WebP equivalent.
Image Format Converter
Converts between PNG, JPEG, WebP, AVIF, GIF, BMP and TIFF, one file or a whole folder at a time.
JPEG Compressor
Re-encodes a JPEG at a chosen quality with a live before/after size and a difference view.
Background Remover
Keys out a flat or single-colour background in OKLab and returns a transparent PNG, with a brush for fixing the edges.
EXIF Remover
Strips camera, GPS and editing metadata from photos while leaving the pixels untouched.
Favicon Generator
Produces the whole favicon set — ICO, PNGs, Apple touch icon, web manifest — plus the HTML to paste.