Jackie(Guokai) Han

Generate and Scan QR Code.

Display and manage tabs vertically in the browser sidebar.

Automatically group tabs, save tabs/groups, and provide shortcuts for tabs/groups.

A web video player for local files.

Announce the time periodically, set custom recurring reminders and display time.

Add useful keyboard shortcuts and default settings for bilibili player.

Clear current or all site data (cache, storage, etc).

Keep your computer running or screen on, and return to default state by a timer.

Display battery level, charging or discharging status.

A concise, lightweight and high-performance Transmission Manager and Web Extension.

A redesigned, productive and pragmatic new tab alternative.

A tool that display system CPU or Memory usage on the extension icon.

A simple Chrome history manager.

A bookmarks manager like macOS Finder.

Get notifications and quick look your new Gmail messages.

A blank new tab page with support for light and dark themes, no JavaScript.

A color picker for Web pages

Search and batch rename or delete local files.

Use omnibox to search MDN Web Docs with autocomplete.

Help non-English developers to check whether the translation of the current page is behind the corresponding English version.

Add spaces between Chinese/Japanese/Korean (CJK) and non-CJK characters.

A warning permissions checking tool for extension developers

The authentic classic Minesweeper game, supporting both retro and modern styles

Quickly switch browser network proxy between direct, system, and custom proxies.

Get desktop notifications for your V2EX messages