Twinkle – Provides "good-faith revert", "rollback", and "rollback (vandal)" links when viewing the diff of the most recent edit to a page. However, requires only autoconfirmed permissions to work.
massRollback – Rollback all edits made by a particular user. Proceed with caution!
Huggle - Tool that, on enwiki, requires rollback to work.
RedWarn - Has an option to use rollback to make reverting quicker, but, like Twinkle, can be used by any autoconfirmed user.
AntiVandal - Web-based counter-vandalism tool, similar to Huggle in interface and usage but more lightweight. Requires rollback permission or inclusion in the AntiVandal whitelist.
