What is WaniKani Kanji Highlighter?

WaniKani Kanji Highlighter is a Chrome extension developed by diogocorreia.dev, and its main feature is "Unofficial kanji highlighter, matching kanji learned with WaniKani.".

Extension Screenshots

Download WaniKani Kanji Highlighter Extension CRX File

Download WaniKani Kanji Highlighter extension files in crx format, manually install Chrome extensions in the browser, or share the crx files with friends to easily install Chrome extensions.

Extension Usage Instructions

Complement your kanji studying on WaniKani with every kanji you learned so far being highlighted everytime it shows up on any web page.
By hovering over any highlighted kanji, you will get a popup with detailed information (provided by WaniKani) about that kanji.
Browse through all kanji and vocabulary provided by WaniKani through the SearchBar in the extension Popup.
Get information about your lessons, reviews and future reviews!

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Changelog v1.0.6

# Popup
- Added Extension Rating stars

# Bug Fixes
- Lessons and Reviews counter on top navbar now update automatically upon a background task fetch

Changelog v1.0.5

# Bug Fixes
- Added timeout to fetching tasks to prevent it from getting stuck

Changelog v1.0.4

# Popup
- Added Dark Mode to the extension popup
- On big data fetches, the updated number of reviews and lessons is now shown right away, instead of waiting for the fetch to end

# Bug Fixes
- Fixed issue that was preventing new reviews notifications (and possibly breaking the extension background tasks)

# Content
- Added periodic background tasks to fetch data from Wanikani, while the user is browsing the web

Changelog v1.0.3

# Bug Fixes
- Updating the extension now only clears all subject data if the previous version begins with 0
- Leaving the extension while loading data no longer breaks the loading popup message progress (it is atleast more resilient now)

Changelog v1.0.2

# Bug Fixes
- Fixed issue where Lessons and Reviews wouldn't always update on their own
- Avatar now loads even when offline
- Fixed the way the timestamp for new updates was being saved (it is now using UTC time)
- Page width now ajusts to the width of the screen (for users in mobile devices, with Kiwi Browser, for example)
- Fixed duplicate creation of Context Menus, which would lead to the extension's Service Worker to crash

Changelog v1.0.0

--- Migration to Manifest v3

# Technicalities
- Changed background from Page to Service Worker
- Window.localStorage not accessible on Service Worker so changed it to IndexedDB
- Popup is no longer entirely created with Javascript (it is now more organized and with each page on a different HTML file)

# Popup
- Improved interface in general
- Added navbar to Changelogs list in the About page
- Added "load more" button to Search Results to limit the number of results and reduce lag while writing on search bar
- Added loading feedback popup for the user to understand the loading stages of data from wanikani
- Loading data from Wanikani is now also being done from the extension Popup (no need to browse a web page)
- Progression Bar, Progression Stats and Levels in Progress now show a list of all the related subjects when clicked
- Lists of subject tiles are now justified to fill the entire width

# Data
- Added new Kana Vocabulary from Wanikani

# Bug Fixes
- Fixed issue where the Subjects Progression Stats would not update over time
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WaniKani Forum: https://community.wanikani.com/t/chrome-extension-wanikani-kanji-highlighter-2021/50455

Extension Basic Information

Name	WaniKani Kanji Highlighter
ID	pdbjikelneighjgjojikkmhiehpcokjm
Official URL	https://chromewebstore.google.com/detail/wanikani-kanji-highlighte/pdbjikelneighjgjojikkmhiehpcokjm
Description	Unofficial kanji highlighter, matching kanji learned with WaniKani.
File Size	4.4 MB
Installation Count	512
Current Version	1.0.6
Last Updated	2023-09-03
Publish Date	2021-03-30
Rating	5.00/5 Total 11 Ratings
Developer	diogocorreia.dev
Email	[email protected]
Payment Type	free
Extension Website	https://github.com/digas99/wanikani-kanji-highlighter
Supported Languages	en
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "name": "WaniKani Kanji Highlighter", "description": "Unofficial kanji highlighter, matching kanji learned with WaniKani.", "version": "1.0.6", "manifest_version": 3, "icons": { "16": "logo\/logo_bb_16x16.png", "32": "logo\/logo_bb_32x32.png", "48": "logo\/logo_bb_48x48.png", "128": "logo\/logo_bb.png" }, "background": { "service_worker": "scripts\/background.js" }, "content_scripts": [ { "matches": [ ":\/\/\/" ], "js": [ "scripts\/essentials.js", "scripts\/functions.js", "scripts\/static.js", "scripts\/time.js" ] } ], "action": { "default_popup": "popup\/auth.html" }, "permissions": [ "tabs", "storage", "unlimitedStorage", "contextMenus", "notifications", "alarms", "webNavigation", "scripting" ], "host_permissions": [ "http:\/\/\/", "https:\/\/*\/" ] }