One aspect of userscripts is that they can be shared. They can be uploaded to a userscript repository where they become available to other users for downloading.
Historically (circa 2005–2011) userscripts.org, created by American programmer Jesse Andrews, was the largest such repository for userscripts. Over time, the site was transitioned between various maintainers before it went offline completely in May 2014.<ref>{{Cite web|url=https://www.ghacks.net/2014/05/09/userscripts-org-good-alternatives/|title=Userscripts.org down for good? Here are alternatives - gHacks Tech News|date=May 9, 2014|website=gHacks Technology News|accessdate=June 13, 2021}}</ref> All that remains is a mirror, which is useful for archival purposes.<ref>[{{Cite web|url=https://userscripts-mirror.org/users/anotherjesse|title=Jesse Andrews - Userscripts.org|website=userscripts-mirror.org|accessdate=June : creator Jesse Andrew's13, profile]2021}}</ref>{{primary source inline|date=September 2019}}
A handful of the most active contributors in the userscripts.org community<ref>[{{Cite web|url=https://userscripts-mirror.org/users.html|title=Community A snapshot of the most active members in- Userscripts.org|website=userscripts-mirror.org]|accessdate=June 13, 2021}}</ref> created ''OpenUserJS'',<ref>[{{Cite web|url=https://github.com/orgs/OpenUserJs/peopleOpenUserJS|title=OpenUserJS|website=GitHub|accessdate=June Collaborators13, of OpenUserJs on GitHub]2021}}</ref>{{primary source inline|date=September 2019}} which is actively in use today. Also available is ''Greasy Fork'', a repository largely developed and maintained by Canadian programmer Jason Barnabe.<ref>[{{Cite web|url=https://github.com/JasonBarnabe/greasyfork|title=JasonBarnabe/graphs/contributors Code metrics for greasyfork|website=GitHub|accessdate=June 13, a Ruby based userscript repository]2021}}</ref>{{primary source inline|date=September 2019}}
Users of the [[Greasemonkey]]<ref>[{{Cite web|url=https://wiki.greasespot.net/User_Script_Hosting|title=User UserscriptScript hostingHosting ]- GreaseSpot Wiki|website=wiki.greasespot.net|accessdate=June 13, 2021}}</ref> and Tampermonkey<ref>[https{{Cite web|url=http://www.tampermonkey.net/faq.php#Q102 |title=Tampermonkey • FAQ]|website=www.tampermonkey.net|accessdate=June 13, 2021}}</ref> extensions may choose to install .user.js scripts from any ___location.
