Not4chan was a short-lived bulletin board website that was managed by “Saber”, a Raspberry Heaven member, and once had ties to 4chan.¹⁾ It was initially founded on November 5, 2004, then it vanished in July 2006, presumably due to the owners losing interest in it.

Due to legal threats, 4chan removed the “Lolikon” (/l/) and “Shota/Male” (/sm/) boards on October 31, 2004, so not4chan was set up at “not4chan.org” on November 5, 2004 to host them instead. While a “Guro” (/g/) board was also removed on November 15, 2004, not4chan did not to host them and after two months, 4chan eventually replaced it with a “Technology” (/g/) board on January 19, 2004.

There isn't much known about not4chan, aside from its strict moderation and constant morality debates that surrounded it.²⁾³⁾ The only evidence that it actually existed was a 4chan announcement indicating that a “Straight Shota” (/ss/) board was added on April 7, 2006,⁴⁾ plus several threads on World4ch.⁵⁾⁶⁾⁷⁾ After that, the website disappeared around July 2006.^8)9)10)11)

Most evidence of these boards existing can usually be found on Google in old forum posts or the board was listed as a source in old image gallery post. Oddly enough, no archives of the boards or threads exist.

• /l/ - Lolikon
• /rl/ - Request/Loli¹²⁾¹³⁾
• /sm/ - Shota/Male
• /ss/ - Straight Shota
• /tl/ - Torrents/Loli

There was never an official revival or successor of the original not4chan, but there were a few websites that claimed to be. However, neither of them are online and there probably won't be another.

• not4chan.us (2006-08-30 – 2007-08-29) - Ran by “narunet” and used Wakaba. For some reason, it was reduced down to two boards around December 2006 before becoming “not4chanserver.org”.
  • not4chanserver.org (2007-01-01 – 2007-02-25) - Ran by “Lime Coke” and used Thorn.
• notfourchan.net (2007-07-06 – 2011) - Ran by “narunet” (allegedly) and used Serissa, but changed to Kusaba on 2010-02-19. It was reportedly criticized for housing too many advertisements.

• The “not4chan Grab Extension” was a Firefox-only extension by “Random Translator” who last updated it on July 11, 2008 where it was "v1.14". There is a fork called "4chan Grab", but it's old.

• 4chan
  • World4ch
• Burichan
• Gurochan

• not4chan - The front page of not4chan.