optiPNG

ADVANCED  PNG  OPTIMIZER

optiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.

If you wish to learn how PNG optimization works, or to know about other similar tools, see the PNG Tech article A guide to PNG optimization.


DOWNLOAD

optiPNG 0.7.8 (stable)

optiPNG Hg (experimental development, DISCONTINUED)

SECURITY  INFORMATION

You are strongly encouraged to upgrade to the latest version.

Here is a list of security-sensitive issues that affect the previous versions:


DOCUMENTATION

CONTRIBUTING


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Last updated: 2023-Nov-22