There’s also https://soju.im/ https://soju.im/ (which IRC Today is a hosted version of) Edit: and the web chat part is https://codeberg.org/emersion/gamja http

There’s also https://soju.im/ https://soju.im/ (which IRC Today is a hosted version of) Edit: and the web chat part is https://codeberg.org/emersion/gamja https://codeberg.org/emersion/gamja from the same author