Nitter
Nitter is a free and open source alternative viewer for Twitter/X, focusing on privacy and performance. Its minimalist and unaugmented UI resembles the classic Twitter desktop layout. Since the user cannot log in to Twitter through Nitter, Nitter has no notifications, no home feed and no ability to tweet. Nitter has no infinite scroll by default so doomscrolling is less likely. In addition to the official web instance, there are unofficial public web instances, as well as community-contributed mobile apps and browser extensions (for which there is also a list on Nitter's wiki) so browsers can auto-redirect Twitter URLs, and even randomize viewing requests across multiple instances. Nitter is funded by donations as well as a grant from NLnet's NGI fund. External links 
 nitter.net, official instance
 status.d420.de/, online status of nitter instances

See also 

 Invidious, a viewer for YouTube that inspired Nitter

References 

Privacy
Free software websites
Software using the GNU AGPL license
Websites