Hi Product Hunt 👋

I built PicoDiet because image compressors kept asking me for a number like “quality 75”, and the same number looked fine on one photo and blocky on the next.

So PicoDiet works the other way round. You choose how close to the original the result must look (80 by default, which looks the same side by side), and it tries settings for each image until it finds the smallest file that still gets there.

Two things I haven’t seen elsewhere:

a second check that rejects a file if one spot got damaged, like a smeared face or blurry text, even when the image overall looks fine;
a heat map in the compare view that shows exactly where each image changed.

JPEG, PNG, WebP, AVIF, GIF (animated too) and iPhone HEIC. Free, no account, uploads deleted within 3 minutes.

I’d love to hear what you’d compress with it, and anything that felt confusing.