Extension Manager

NameDocsDescription

Admin
Show a "down for maintenance" page

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
Allows bulk downloading images.
Allows bulk exporting/importing of images and associated data.
Handle JPEG, PNG, GIF, WEBP, etc 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.

General
Edit the alias list
Adds autocomplete to search & tagging.
Turns BBCode into HTML
Allow users to favorite images
Adds a set of keyboard shortcuts to the post list and single post view for ease of navigation
Shows a QR Code for downloading a post to cell phones
Do things with a random post
Show various bits of system information

Integration
Provides reverse search links for images.

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
Allows users to mark images as private, which prevents other users from seeing them.
Allow images to have sources assigned to them
Let tags be split into 'categories', like Danbooru's tagging
Allow images to have tags assigned to them

Moderation
Provides query and selection-based bulk action support
Provides "Trash" or "Recycle Bin"-type functionality, storing deleted images for later recovery