Visit the W3C homepage

Standards
Standards

Understand the various specifications, their maturity levels on the web standards track, and their adoption.
Explore web standards
Groups
Groups

A variety of groups develop Web Standards, guidelines, or supporting materials.
About W3C groups
Get involved
Get involved

W3C works at the nexus of core technology, industry needs, and societal needs.
Find ways to get involved
Resources
Resources

Master Web fundamentals, use our developer tools, or contribute code.
Learn from W3C resources
News and events
News and events

Recent content across news, blogs, press releases, media; upcoming events.
Follow news and events
About
About

Understand our values and principles, learn our history, look into our policies, meet our people.
Find out more about us
Search
My account

Portable Network Graphics (PNG) Working Group

The mission of the PNG Working Group is to maintain and develop the Portable Network Graphics (PNG) specification.

Homepage: This page
Status: Active
Charter: Chartered until 30 October 2025 (history)
Shortname: png

Participation

To join or leave this group, please sign in to your account.

Patent Policy status How to Join

Leadership

Chairs

Chris Blume

Staff Contacts

Chris Lilley

Links

Mailing List: Public, archived mailing list