Custom HTML Headers Allows admins to modify & set custom <head> content Downtime Show a "down for maintenance" page Tag Tools Recount / Rename / Etc 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 Private Messaging Allow users to send messages to eachother Bulk Download Allows bulk downloading images. 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 Alias Editor Edit the alias list Autocomplete Adds autocomplete to search & tagging. BBCode Turns BBCode into HTML Blotter Displays brief updates about whatever you want on every page. Favorites Allow users to favorite images Generic Blocks Add HTML to some space (News, Ads, etc) 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 User Bios Allow users to write a bit about themselves 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 Ouroboros API Ouroboros-like API for Shimmie Reverse Search Links Provides reverse search links for images. Auto-Tagger Provides several automatic tagging functions 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 Scores (Numeric) Allow users to score images Post View Counter Tracks & displays how many times a post is viewed Private Post Allows users to mark images as private, which prevents other users from seeing them. 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 Approval Adds an approval step to the upload/import process. Bulk Actions Provides query and selection-based bulk action support Post Hash Ban Ban images based on their hash 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.