Booru Enhancer
Booru Enhancer is an all-in-one userscript that modernizes the browsing experience across the most popular booru imageboards.
It adds original-quality media viewing, smarter downloads, an advanced fullscreen viewer, powerful tag tools, keyboard shortcuts, filtering, reverse image search, and dozens of quality-of-life improvements—all without changing the look and feel of your favorite booru.
Designed to work seamlessly with Violentmonkey, Tampermonkey, and ScriptCat.
Features
Original Quality Media
- Automatically load original-resolution images and videos.
- Replace compressed previews with full-quality media.
- Optional click-to-load mode.
- Never upscale beyond the original resolution.
- Supports images, GIFs, WebP, MP4, and WebM.
Smart Downloads
- One-click download button.
- Always downloads the original file.
- Automatically renames files using metadata.
- Custom filename templates.
- Download progress.
- Automatic retry on failures.
- Bulk download support.
- Cross-origin downloads via userscript APIs.
Filename examples:
Asuka Langley Soryu.png
Rem.webp
Hatsune Miku.mp4
Marin Kitagawa - Artist (123456).jpg
Fullscreen Viewer
Enjoy media with a modern fullscreen viewer featuring:
- Zoom
- Pan
- Rotate
- Flip
- Fit to screen
- Original size
- Keyboard navigation
- Swipe gestures
- Mouse wheel zoom
- Video playback
- Autoplay
- Loop
- Remember volume
- Quick download
- Quick favorite
- Information panel
Quick Favorites
Favorite posts instantly without leaving the current page.
- One-click favorite
- Instant UI updates
- Local favorites cache
- Uses the site's existing login session
Gallery Enhancements
- Infinite scrolling
- Hover previews
- Higher-quality thumbnails
- Grid density adjustment
- Compact mode
- Faster browsing
- Better media loading
Powerful Tag Tools
- Category-colored tags
- Copy all tags
- Copy artist tags
- Copy character tags
- Search selected tags
- Collapsible tag lists
- Better organization
Reverse Image Search
Search images using:
- SauceNAO
- IQDB
- Google Lens
- Yandex Images
- Bing Visual Search
Image Information
View useful metadata at a glance:
- Resolution
- Aspect ratio
- File size
- File format
- Rating
- Score
- Favorites
- Upload date
- Artist
- Characters
- Source
- MD5 hash
Filters & Blacklists
Hide posts automatically based on:
- Tags
- Ratings
- AI-generated content
- Videos
- Animations
- Minimum resolution
- Personal blacklist
- Personal whitelist
Keyboard Shortcuts
Quick access to common actions:
- Download
- Favorite
- Open original
- Fullscreen viewer
- Next / Previous post
- Play / Pause videos
- Close viewer
All shortcuts are configurable.
Modern Settings Panel
Customize every aspect of the script.
- Light & Dark themes
- Accent colors
- Import / Export settings
- Per-feature configuration
- Persistent preferences
- Organized categories
Supported Sites
The script supports multiple booru engines and automatically detects the correct implementation.
Danbooru
- danbooru.donmai.us
- atfbooru.ninja
Gelbooru Family
- Gelbooru
- Safebooru
- Rule34.xxx
- Realbooru
- TBIB
- Xbooru
- HypnoHub
Moebooru Family
- Konachan
- Yande.re
- Lolibooru
e621
Generic Compatibility
Additional booru sites are supported through an intelligent fallback system, including engines that do not provide a public API.
Performance
Designed with performance in mind.
- Lazy loading
- Cached settings
- Efficient DOM updates
- Retry handling
- Debounced observers
- Modular architecture
- Optimized for large galleries
Privacy
Booru Enhancer does not collect, transmit, or sell any personal information.
- No analytics
- No telemetry
- No tracking
- No advertisements
- No external accounts required
All settings are stored locally in your userscript manager.
Compatibility
Works with:
- Violentmonkey (recommended)
- Tampermonkey
- ScriptCat
Compatible with modern Chromium-based browsers and Firefox.
Planned Features
Future releases may include:
- Batch media management
- Download history
- Local media database
- Duplicate detection
- Advanced slideshow mode
- Additional themes
- Plugin support
- More site adapters
- More customization options
Why Booru Enhancer?
Instead of installing multiple small userscripts for downloading, viewing, filtering, and searching, Booru Enhancer combines everything into a single, actively maintained script with a modular architecture and a consistent user experience.
Whether you're an artist, collector, researcher, or casual browser, Booru Enhancer is designed to make browsing booru sites faster, cleaner, and more enjoyable.
