Check contrast between two colors

The creativity playground of lines and curves

Record Timed Events

煮茶器

双因素验证器

Full-text search for your desktop

Modern feature-rich video/audio downloader based on yt-dlp

Penpal Correspondence Organized

Open-source sailing routing and navigation software

Provides the ability to manage some features of the Keenetic router more easily

给图片添加水印, 防止被恶意使用

Control an Android TV over the network via ADB

Manage tasks like a coyote

Linux client for Pockethernet network tester

Crypto bookkeeping wallet

Passwords at hand

Calculator for adding hours and minutes

For Hues, LIFX, Nanoleafs, and Arduinos.

Parks on the Air hunting companion

Game, knowledge quiz

Add or remove tracker from torrent files.

Jot down notes and snippets

Contact management application

Symbolics Made Easy

Remove image backgrounds locally

A simple graphical tool to purge old events from CalDAV calendars

Draw oscillators and envelopes

An extensible calculator

Format tables to Markdown or HTML

Tasks on your own CalDAV server!