Extension Manager

Name	Docs	Description
Admin
Tag Tools		Recount / Rename / Etc
Feature
Pools		Allow users to create groups of images and order them.
Post Comments		Allow users to make comments on images
Post List		Show a list of uploaded posts
File Handling
Bulk Add CSV		Bulk add server-side posts with metadata from CSV file
Bulk Import/Export		Allows bulk exporting/importing of images and associated data.
Handle MP3		Handle MP3 files
Handle Pixel		Handle JPEG, PNG, GIF, WEBP, etc files
Handle SVG		Handle static SVG files.
Handle Video		Handle FLV, MP4, OGV and WEBM video files.
Regen Thumb		Regenerate a thumbnail image
Replace File		Allows people to replace files for existing posts
Rotate Image		Allows admins to rotate images.
Transcode Image		Allows admins to automatically and manually transcode images.
Transcode Video		Allows admins to automatically and manually transcode videos.
General
Alias Editor		Edit the alias list
Autocomplete		Adds autocomplete to search & tagging.
BBCode		Turns BBCode into HTML
Favorites		Allow users to favorite images
Filter Tags		Allow users to filter out tags.
Link to Post		Show various forms of link to each image, for copy & paste
Post Peek		Peek at posts
Random List		Allows displaying a page with random posts
Random Post		Do things with a random post
System Info		Show various bits of system information
Integration
Browser Search		Allows the user to add a browser 'plugin' to search the site with real-time suggestions
Danbooru Client API		Allow Danbooru apps like Danbooru Uploader for Firefox to communicate with Shimmie
GraphQL		Add a graphql API
Ouroboros API		Ouroboros-like API for Shimmie
RSS for Comments		Self explanatory
RSS for Posts		Self explanatory
XML Sitemap		Sitemap with caching & advanced priorities
Metadata
Auto-Tagger		Provides several automatic tagging functions
Bulk Parent Child		Allows bulk setting of parent-child relationships, in order of manual selection
Lock Editor		Allow images to have metadata locked
Owner Editor		Allow images to have owners assigned to them
Post Ratings		Allow users to rate images "safe", "questionable" or "explicit"
Post Relationships		Allow posts to have relationships (parent/child).
Post Titles		Add titles to media posts
Post View Counter		Tracks & displays how many times a post is viewed
Source Editor		Allow images to have sources assigned to them
Tag Categories		Let tags be split into 'categories', like Danbooru's tagging
Tag EditCloud		Add or remove tags to the editor via clicking.
Tag Editor		Allow images to have tags assigned to them
Moderation
Bulk Actions		Provides query and selection-based bulk action support
Report Posts		Report posts as dupes/illegal/etc
Source History		Keep a record of source changes, and allows you to revert changes.
Tag History		Keep a record of tag changes, and allows you to revert changes.