Sonic Channel is an official Japanese website published and maintained by Sega. It contains information about the Sonic the Hedgehog series, and was launched during E3 2005. An updated version of the website was launched in late 2015.
The website contains updates on different Sonic-related media like games, events and television shows, Sonic-themed merchandise like clothing and accessories, exclusive downloads like calendars and wallpapers, participation events, and user-submitted fanart corresponding with a month's theme. It also contains a list of most of the games in the Sonic series, and profiles for most of the recurring characters in the franchise.
Sonic Channel is mostly known for the monthly calendar/wallpaper which contains new artwork of a recurring character, usually in a different art style each year. In 2021, these artworks have both Sonic and a different character, accompanied by a written story in Japanese.
The website had a collection of browser-based games, some of which include pre-existing games, such as Shadow the Hedgehog Flash, and others original like Sonic the Broad Jump. The website also has twenty-five jigsaw puzzles based on the site's artwork of characters from the Sonic series.