Tool Profile

cjpegli

A JPEG encoder from the libjxl project, praised for high-quality progressive 4:4:4 compression.

At a glance:

First seen:2026-07-19

Last seen:2026-07-19

Sightings:1

Source:github.com

What it is

A JPEG encoder from the libjxl project, praised for high-quality progressive 4:4:4 compression.

Why developers recommend it

A commenter gave clear first-hand approval and a concrete compression-quality rationale.

Hacker News evidence

2026-07-19

A commenter said they use cjpegli and that it “compresses best” with its default progressive, full-4:4:4 approach.

Regressive JPEGs