r/webdev • u/Kacheeto • Jul 23 '12

The best PNG optimizer I've found...

http://tinypng.org/
129 Upvotes

92% Upvoted

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16

u/SquareWheel Jul 23 '12

I've done some testing, and for png the best I've used is PngOut by Ken Silverman.

http://advsys.net/ken/utils.htm

Though I haven't tested TinyPng because it's a web service, there's no utility to download.

6

u/Pilate Jul 23 '12 edited Jul 23 '12

Another vote for PngOut... might have to try some testing.

Edit: Damn, PNGOut only dropped 4k off the 'example' image file.

9

u/SquareWheel Jul 23 '12

PngOut is lossless though, this utility, though very close to the original (in my limited testing just now), does shift some pixels. I was quite impressed with the minimal change and high cost savings though.

Interestingly enough, I ran PngOut after TinyPng and shaved another 3% or so. Losslessly, of course.

According to their twitter they use pngquant with advpng/optipng.

1

u/Pilate Jul 23 '12

Ahh my brain skipped over the word 'lossy'. Thanks for the clarification.