The online imageboard 4chan is often associated with controversial content, a vocal user-base and an unfiltered platform. 4chan's impact on internet culture is undeniable, and its influence on meme culture and on online communities are widespread. 4chan is a bulletin system founded by Christopher Poole in 2003. It focuses on many topics, including anime, manga, politics, and technology. The site has different boards, dedicated to specific interests. Users are able to post anonymously. This anonymity is what has made the platform so popular and appealing, allowing for unrestricted expression and unfiltered content. This has also led an influx controversial and offensive material, contributing towards 4chan's reputaion as a hub for fringe groups and internet subcultures. The infamous (random board) /b/ is known for its "anything-goes" approach, in which users can post content ranging from funny and creative to explicit or disturbing. This unrestrained environment led to the creation and spread of many internet memes. The activist group Anonymous was born on 4chan. They used the anonymity of the platform to launch and organize various campaigns and operations. The group has taken a variety of actions, from online protests to controversial activities. This has cemented 4chan's place as a landmark in internet history. 4chan has had a lasting influence on internet culture, despite its reputation for controversial and unconventional content. 4chan continues its influence on the digital landscape, from the creation and spreading of memes to the role it plays as a breeding grounds for online movements. 4chan, like any online community has its critics and supporters. Some see it as a hotbed for online toxicity while others value its role in fostering unfiltered expressions and the birthing of internet phenomena. 4chan is an important and enduring presence in the ever-evolving web ecosystem.