http://nuclearchange.i2p/catalog.html?add=&amp%3Bamp%3Bamp%3Bamp%3Bamp%3Bamp%3Bamp%3Binclude_default=true&amp%3Bamp%3Bamp%3Bamp%3Bamp%3Bamp%3Bamp%3Brem=&amp%3Bamp%3Bamp%3Bamp%3Bamp%3Bamp%3Bamp%3Bpage=1&amp%3Bamp%3Bamp%3Bamp%3Bamp%3Bamp%3Bpage=2&amp%3Bamp%3Bamp%3Bamp%3Bamp%3Bpage=1&amp%3Bamp%3Bamp%3Bamp%3Bpage=2&amp%3Bamp%3Bamp%3Bpage=1&amp%3Bamp%3Bpage=2
On top of tools for your own computer, many online services are based on FOSS, including Mastodon and Lemmy instances, the many tools at https://disroot.org/en/#services and even Nuclear Change (running fusion, a fork of jschan imageboard software).