News on 4/19/22, the owner is shutting down the site. Discussion on livechan sounds promising that it will be relaunched soon so I will keep it listed on AllChans for now. The /b/ is still working today. The rest look to be 404.
Marking as dead 11-30-2022 It has been going to a cloudflare 404 page for a few weeks now.
RE-added 5-5-23 screenshot above is from this date.
I doubt you made it to AllChans without knowing what 4chan is..
4chan is a simple image-based bulletin board where anyone can post comments and share images. There are boards dedicated to a variety of topics, from Japanese animation and culture to videogames, music, and photography. Users do not need to register an account before participating in the community. Feel free to click on a board below that interests you and jump right in!