| Admin |
|  | Allows admins to modify & set custom <head> content |
| | Use an additional stylesheet on certain holidays |
| | Recount / Rename / Etc |
| Feature |
|  | Allow users to make comments on images |
|  | Show a list of uploaded posts |
|  | A simple wiki, for those who don't want the hugeness of mediawiki |
| File Handling |
|  | Bulk add server-side images |
|  | Bulk add server-side posts with metadata from CSV file |
| | Allows bulk downloading images. |
| | Allows bulk exporting/importing of images and associated data. |
| | Handle windows icons |
| | Handle MP3 files |
| | Handle JPEG, PNG, GIF, and similar 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 |
| | This extension allows admins to resize images. |
| General |
|  | Edit the alias list |
| | Adds autocomplete to search & tagging. |
| | Lets users use gravatar avatars as their avatar |
| | Lets users set a post as their avatar |
|  | Turns BBCode into HTML |
|  | Displays brief updates about whatever you want on every page. |
|  | Lets users use graphical smilies |
|  | Allow users to favorite images |
|  | Allow users to filter out tags. |
|  | Add HTML to some space (News, Ads, etc) |
|  | Find posts that are referenced in a block of text |
|  | Show various forms of link to each image, for copy & paste |
|  | Allows displaying a page with random posts |
|  | Do things with a random post |
| | Blurs thumbs based on rating, users can override. Requires 'Post Ratings'. |
|  | Show various bits of system information |
| Integration |
|  | Allow Danbooru apps like Danbooru Uploader for Firefox to communicate with Shimmie |
| | Self explanatory |
| | Self explanatory |
| Metadata |
| | Provides several automatic tagging functions |
| | Allows bulk setting of parent-child relationships, in order of manual selection |
| | Allow images to have metadata locked |
| | Annotate images |
| | Allow images to have owners assigned to them |
| | Allow posts to have descriptions |
|  | Allow users to rate images "safe", "questionable" or "explicit" |
| | Allow posts to have relationships (parent/child). |
| | 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 |
| | 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 tag changes, and allows you to revert changes. |
|  | For stopping spam and other abuse in comments, tags and sources |
| | Simple search and replace |