[Userscript] WaniKani Review Analytics — Track your accuracy over time with charts

WaniKani Review Analytics

Ever wondered how your accuracy has changed over time? This script adds an interactive analytics panel to your WaniKani dashboard with charts.

Features

  • Daily Accuracy Trend — Line chart of your accuracy for the last 30 days
  • Weekly Accuracy — Color-coded bar chart (green >90%, yellow >75%, red <75%)
  • SRS Stage Breakdown — Radar chart showing accuracy per SRS level (Apprentice 1 to Enlighten)
  • Item Type Analysis — Accuracy and volume for Radicals, Kanji, and Vocabulary
  • Summary Stats — Total reviews, accuracy %, streak, SRS distribution
  • WKOF Settings — Toggle panels, adjust ranges, choose position

Install

Click here to install from Greasy Fork

Requirements

  • WaniKani Open Framework (install first)
  • Tampermonkey / Violentmonkey

Feedback

Let me know what you think! Feature requests and bug reports welcome. v1.0.0 — more charts coming soon.

v1.1.0 is now available! New features:

  • Monthly Accuracy Chart (12-month bar chart)
  • Cumulative Accuracy Trend (running since day 1)
  • Dark Mode Support (auto-detects WK dark mode)
  • Export CSV (one-click download)
  • Collapsible Chart Sections

Update: WaniKani Review Analytics
GitHub: bimapopo345 (Bima Prawang Saputra) · GitHub