https://e621.net/help/supported_filetypes
Help: Supported Filetypes - e621
supported filetypeshelpe621
https://e621.net/wiki_pages/26651
Wiki - e621:supported filetypes - e621
e621 supports the following file types upon upload. Maximum dimensions: 15000px in either direction. Minimum dimensions: 256px in either direction. Type...
supported filetypeswikie621