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Only 1.16MB, open-source minimalist desktop clock and pomodoro timer, also supports system monitoring display, desktop productivity tool Catime

📚Video Course
📂Windows Software
🕒Last updated: 07/27/2026
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Description

Catime is a simple Windows countdown tool that combines time display, countdown, and pomodoro clock functions. Written in C, it is small in size and low in resource usage, and supports transparent interfaces and rich features. Users can adjust the interface size and position, set timeout actions (lock screen/notification/shutdown), customize colors and fonts, and also customize tray animations (GIF, CPU/memory percentage) to meet personalized needs.

Software Features

Minimalist design: transparent interface, click-through, adjustable size and position, multilingual support

Rich fonts: 14 Nerd Fonts fonts, supports real-time preview

Flexible timing: quick presets, custom time input, display current time (12/24-hour format)

Timeout actions: notification, lock screen, shutdown/restart, open file

Interface beautification: 9 preset colors, custom RGB/HEX, real-time preview

Plugin system: Catime also supports a plugin system with strong extensibility

Usage Instructions

Left-click the tray icon: set time

Right-click the tray icon: open the settings menu

Edit Mode: drag to adjust position, scroll wheel to adjust size, 🖱️right-click to exit Edit Mode

Hover the mouse over the icon to view system status such as CPU, memory, and network speed in real time.

It also supports setting your own GIF animations and PNG images as icons for extra fun.

Through plugins, you can display on the desktop the Gaokao countdown, toxic soup quotes, system monitor, weather forecast, current gold price, and Bilibili data.

Software Screenshots

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Supporting Study Materials

This course comes with a materials pack. Members receive the access link by email after requesting the course.

Subscribe and unlock the course to view the supporting materials access links.

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