SpreadSheetPlugin(20 Jan 2017, 1.23): Add spreadsheet calculations like "$SUM($ABOVE())" to Foswiki tables and other topic text
SlideShowPlugin(09 Mar 2021, 2.40): Create web based presentations based on topics with headings
AttachContentPlugin(03 Feb 2021, 2.42): Saves dynamic topic text to an attachment
AutoTemplatePlugin(27 Apr 2022, 7.10): Automatically sets VIEW_TEMPLATE, EDIT_TEMPLATE and PRINT_TEMPLATE
AutoViewTemplatePlugin(2016-04-08, 1.24): Automatically sets VIEW_TEMPLATE and EDIT_TEMPLATE
BookmakerPlugin(1.1.0, $Rev: 15213 (2012-07-26) $): Provides a UI and an API for other extensions that support the definition and maintenance of a specific topic ordering
BreadCrumbsPlugin(27 Apr 2022, 4.00): A flexible way to display breadcrumbs navigation
CalDAVPlugin(1.001, $Rev: 8317 (2010-07-26) $): Extract a list of events from a CalDAV (iCal) server
CalendarPlugin(18 Jul 2017, 2.020): Show a monthly calendar with highlighted events
ChecklistPlugin(11 Jun 2018, 1.21): Maintain a list of checklist items with a simple mouse click.
ClassificationPlugin(02 May 2019, 7.00): A topic classification plugin and application
CommentPlugin(06 Aug 2023, 2.95): Quickly post comments to a page without an edit/save cycle
SecurityHeadersPlugin(17 Oct 2018, 1.10): Add HTTP security headers to protect against XSS attacks
SendEmailPlugin(20 May 2022, 2.00): Send e-mails through an e-mail form
SmiliesPlugin(17 Sep 2015, 2.03): Render smilies like as icons
SolrPlugin(31 Jan 2019, 7.30): Enterprise Search Engine for Foswiki based on Solr
SubscribePlugin(06 Aug 2023, 3.7): This is a companion plugin to the MailerContrib. It allows you to trivially add a "Subscribe me" link to topics to get subscribed to changes.
TablePlugin(22 Jan 2018, 1.160): Control attributes of tables and sorting of table columns
TagCloudPlugin(28 Oct 2020, 4.01): Renders a tag cloud given a list of terms
TimeTablePlugin(Foswiki, $Rev: 5368 (2009-10-23) $): Render a weekly timetable
TreeBrowserPlugin(2.21, 2.21): Renders a bulleted or numbered list as a collapsible/expandable tree of nodes.
TreePlugin(1.93, 1.93): Renders topics' parent-child relationships as hierarchical tree view. Useful for dynamic site maps and threads.
TwistyPlugin(29 Jun 2023, 3.00): Twisty section Javascript library to open/close content dynamically
UpdatesPlugin(12 Nov 2019, 2.00): Checks Foswiki.org for updates
UploadPlugin(1.11, $Rev: 4414 (2009-07-03) $): Attach multiple files to a topic in one go
VotePlugin(11 May 2017, 1.34): Simple way to count votes
WebLinkPlugin(2 Jun 2018, 2.00): A parametrized %WEB macro
WorkflowPlugin(1 Aug 2017, 1.17): Associate a "state" with a topic and then control the work flow that the topic progresses through as content is added.