WuCai - Highlight, Annotation and Note

Name: WuCai - Highlight, Annotation and Note
Rating: 4.6923 (13 reviews)
Author: wucai

By: wucai

WuCai lets you highlight, annotate and take notes on any webpage. Support multi-level tags and web clipping. With our highlight manager, organize notes efficiently, boost learning and work productivity, save time, and stay focused.

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Features & Capabilities

WuCai is a lightweight Chrome extension for highlighting, annotating and taking notes on any webpage. Highlights persist after refresh, support multiple colors, image highlighting, unlimited highlights per page, and a convenient sidebar toolbar with keyboard shortcuts. Use powerful nested tags and an integrated highlight manager to keep your notes organized and easy to find.

Built for knowledge management and productivity, WuCai supports web clipping, export to Text or Markdown, and a “super copy” feature to bypass site copy limits. Multi-device sync and seamless integrations with Obsidian, Logseq, Workflowy and SiYuan make it easy to centralize research and build a personal knowledge system. Learn more in the help guide or contact support for feedback and setup tips.

User Growth & Download Statistics

Add-on Writing Education Content Developer Tools

By:

wucai

Daily users:

457 -14

Rating:

4.69

(13)

Version:

26.3.286 Last updated: 2026-03-18

Version code:

6186702

Creation date:

2022-11-24

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

1.01MB

Email:

wu*****@163.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-20

Compare stats and ranking:

Ranking

# 5,229 ▼ 102

Other rankings

#178 in Bookmarks ▼ 4

#28 in take keyword 42 ▲ 1

#49 in organization keyword 11 ▼ 2

#95 in organize keyword 21 ▲ 3

#96 in note keyword 42 ▼ 2

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For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

wucai

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/wucai/

Email:

wu*****@163.com

Website:

https://doc.wucai.site/

Publisher Change History

2024-11-13: ma*****@gmail.com to wu*****@163.com

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Permission Change History

2024-08-15: Version 24.8.13 → 24.8.15

Add Permissions: <all_urls>

2022-12-13: Version 22.12.5 → 22.12.13

Add Permissions: clipboardWrite

User Reviews

Pros

Best web highlighter addon on Firefox.
Continuous updates from the developer.
Supports highlighting images and exporting to note-taking apps.
Easy to use and user-friendly.

Cons

Does not support highlighting for local .xml and .json files.
Some users reported it not functioning properly on certain pages or with specific configurations.

Recent reviews

Самое лучшее расширения для фаерфокс в сфере быстрых заметок, когда надо что-то написать важное и потом куда-то перенести. Отдельное спасибо разработчику за то, что расширение переведено на русский язык

by Ni*****, 2025-06-11

目前用过的约十个插件里最好用的。希望能给本地.xml、.json文件添加高亮。（本地.cpp源码文件可以高亮，但.xml、.json不行）。

by ST*****, 2024-10-13

Nice. Hope it was in English.

by ea*****, 2024-10-12

View all user reviews ›

Is WuCai - Highlight, Annotation and Note Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

WuCai - Highlight, Annotation and Note requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

WuCai - Highlight, Annotation and Note is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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