Femtanyl are a Canadian digital hardcore band based in Toronto consisting of founding member and lead singer Noelle Stockwood and multi-instrumentalist Juno Callender, who later joined in 2025. As well as being classified as digital hardcore music, they have been labeled as breakcore. Their music is popular in online spaces, especially among the furry fandom. They take inspiration from a wide variety of sources including groups like Nine Inch Nails, Throbbing Gristle, The Prodigy, and Drain Gang, as well as modern electronic dance music and pop music.