Jpegli
Hacker ApprovedThe most recommended of 3 image codec libraries
Google's JPEG encoder that improves plain JPEG quality without a new format, matching WebP's quality and size while keeping better compatibility.
Google's JPEG encoder that improves plain JPEG quality without a new format, matching WebP's quality and size while keeping better compatibility.
13 people gave an opinion
- recommend it
- 13
- criticize it
- 0
- approval share
- 100%
Recommended in 5 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: not recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it carries the badge
- 13 people recommend itNeeds 10 or more, met.
- Nobody criticizes itNeeds 2 to 1 or better, met.
- Recommended in 5 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Better JPEG quality without new codec
“Jpegli offer enough quality improvement and advantage without introducing an entirely new codec.”
Comment from 15 Sep 2026 in “The case against JPEG XL” “the jpegli encoder (from google's jpegxl team) has improved plain jpeg encoding significantly”
Comment from 11 Oct 2026 in “I guess I'm using WebP now?” “is a significant improvement”
Comment from 24 Nov 2025 in “Chrome Jpegxl Issue Reopened” Impressive, useful results in practice
“JPEGLI was also pretty useful”
Comment from 16 Oct 2026 in “JPEG XL vs. AVIF for web use-cases” “which was honestly a wonder”
Comment from 4 Jun 2026 in “Journey to JPEG XL: open-source experiments shaped the future of image coding” “it does an impressive job”
Comment from 2 Dec 2025 in “Google unkills JPEG XL?” Matches WebP with better compatibility
“jpegli pretty much matches it in quality/size while having better compatibility”
Comment from 4 Nov 2025 in “The 512KB Club” “Lossy WebP does not make as much sense though since jpegli entered the game.”
Comment from 14 Sep 2026 in “The case against JPEG XL”
Other image codec libraries people recommend
The two most recommended other image codec libraries, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
See all 3 image codec libraries, rankedWhat people said
11 of the 14 comments that mention it, newest first. Each links to the original comment.
“JPEGLI was also pretty useful”
“thoroughly obsoleted by jpegli”
“the jpegli encoder (from google's jpegxl team) has improved plain jpeg encoding significantly”
“Jpegli offer enough quality improvement and advantage without introducing an entirely new codec.”
“Lossy WebP does not make as much sense though since jpegli entered the game.”
“Jpegli is still a hidden gem. People don't yet understand how great it is.”
“which was honestly a wonder”
“it does an impressive job”
“the author of the incredible Jpegli”
“is a significant improvement”
“jpegli pretty much matches it in quality/size while having better compatibility”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.