WaniKani Level Filter

A userscript that allows you to filter WaniKani reviews by level during active review sessions. Select a specific level from a dropdown menu, and only review items from that level while other items are automatically skipped.

Features

• Real-time filtering during active review sessions
• Simple dropdown UI at the top of the review page
• Level persistence - your selection is saved across sessions
• Smart queue management - skipped items are deferred to the end of the queue
• Empty queue detection - warns you if few/no items from the selected level are available
• Graceful error handling - continues working even if data loading fails

Prerequisites

This script requires the WaniKani Open Framework (WKOF) to function.

1. Install a userscript manager:

   • Chrome/Edge: Tampermonkey (recommended) or Violentmonkey
   • Firefox: Tampermonkey or Greasemonkey
   • Safari: Userscripts

2. Install the WaniKani Open Framework:

   • Install from GreasyFork
   • Or follow the installation instructions

Installation

1. Make sure you have WKOF installed (see Prerequisites)
2. Click here to install: wanikani-level-filter.user.js
3. Your userscript manager will prompt you to confirm installation
4. Click "Install" or "Confirm"

Alternative: Copy the contents of wanikani-level-filter.user.js and create a new userscript in your userscript manager.

Usage

1. Navigate to a WaniKani review session: https://www.wanikani.com/review
2. Look for the "Filter by Level:" dropdown at the top of the page
3. Select a level from the dropdown (or choose "All Levels" to disable filtering)
4. Start your reviews - items from other levels will be automatically skipped
5. Your selection is saved and will persist across review sessions

How It Works

• When you select a specific level, the script monitors each review item as it appears
• If an item is not from the selected level, it's automatically moved to the end of your review queue
• This allows you to focus on reviewing items from a specific level without interruption
• Items from other levels are not removed - they're just deferred for later

License

MIT License - see LICENSE file for details

Credits

• Built on top of the WaniKani Open Framework by rfindley
• Inspired by various WaniKani userscripts from the community