Top 4 Open-Source Alternatives to TBPChan

4chan is a simple image-based bulletin board where anyone can post comments and share images.

Hacker News is a social news website focusing on computer science and entrepreneurship. It is run by Paul Graham's investment fund and startup incubator, Y Combinator.

Exhentai is an anime/manga image site which has a lot of hentai images (as the name implies) and content (such as doujin/doujinshi scans from Japanese magazines, CG artwork, hentai manga series, fan art, etc...)

Lobsters is a technology-focused link-aggregation site. The site is driven by ...