itch.io

cool tool mcgee https://itch.io/c/235488/cool-tools

https://itch.io/c/1041007/made-with-the-electric-zine-maker

https://itch.io/c/7037/the-good-stuff

Nathalie Lawhead's glitch tool, according to her blog: https://jkirchartz.com/Glitchy3bitdither/index.html

Zonelets is hosted by Neocities

https://neocities.org/

Snarf: https://wiki.xxiivv.com/site/snarf.html

Themselves Press (zine resource/print shop): https://themselvespress.com/filehelp

Chordchord: https://chordchord.com/