Extension Manager

NameDocsDescription

Admin
Recount / Rename / Etc

Feature
Allow users to create groups of images and order them.
Allow users to make comments on images
Show a list of uploaded posts

File Handling
Bulk add server-side posts with metadata from CSV file
Allows bulk exporting/importing of images and associated data.
Handle MP3 files
Handle JPEG, PNG, GIF, WEBP, etc files
Handle static SVG files.
Handle FLV, MP4, OGV and WEBM video files.
Regenerate a thumbnail image
Allows people to replace files for existing posts
Allows admins to rotate images.
Allows admins to automatically and manually transcode images.
Allows admins to automatically and manually transcode videos.

General
Edit the alias list
Adds autocomplete to search & tagging.
Turns BBCode into HTML
Allow users to favorite images
Allow users to filter out tags.
Show various forms of link to each image, for copy & paste
Peek at posts
Allows displaying a page with random posts
Do things with a random post
Show various bits of system information

Integration
Allows the user to add a browser 'plugin' to search the site with real-time suggestions
Allow Danbooru apps like Danbooru Uploader for Firefox to communicate with Shimmie
Add a graphql API
Ouroboros-like API for Shimmie
Self explanatory
Self explanatory
Sitemap with caching & advanced priorities

Metadata
Provides several automatic tagging functions
Allows bulk setting of parent-child relationships, in order of manual selection
Allow images to have metadata locked
Allow images to have owners assigned to them
Allow users to rate images "safe", "questionable" or "explicit"
Allow posts to have relationships (parent/child).
Add titles to media posts
Tracks & displays how many times a post is viewed
Allow images to have sources assigned to them
Let tags be split into 'categories', like Danbooru's tagging
Add or remove tags to the editor via clicking.
Allow images to have tags assigned to them

Moderation
Provides query and selection-based bulk action support
Report posts as dupes/illegal/etc
Keep a record of source changes, and allows you to revert changes.
Keep a record of tag changes, and allows you to revert changes.