@darbling

中国法定节假日与工作日计算器。查某年某月工作天数、某日期是否上班、距离节假日倒计时、调休换休提示。支持2024-2027年全部法定节假日及已知调休日。When the user asks about Chinese holidays, workdays, overtime, holiday countdown,...

World timezone converter — convert times across 200+ cities worldwide. Perfect for international calls, remote work, travel planning, and global business. Fe...

Convert Markdown to beautiful presentations and slides. 一键将Markdown文档转换为精美PPT幻灯片，支持多种主题风格，适合商务汇报、教学课件、会议演讲。Markdown to PPT, presentation generator, slides ma...

Islamic holiday calendar and Hijri date converter. 穆斯林节假日日历，支持Ramadan斋月、Eid开斋节、Ashura等重要节日查询，伊斯兰历转换。Islamic calendar, Ramadan, Eid al-Fitr, Eid al-Adha, Hijr...

Generate URL-friendly slugs from text. 将任意文本转换为SEO友好的URL别名，支持中英文混合、自动去除特殊字符。适合博客、电商、CMS系统。URL slug maker, permalink generator, URL safe string.

Validate and extract info from Chinese ID card numbers (身份证). 身份证号码验证、归属地查询、出生日期提取、性别判断、年龄计算、15位转18位。China mainland ID card validator and parser.

提供A股大盘指数、涨跌停、北向资金监控及交易税费计算，支持多源数据交叉验证和用户自定义接口扩展。

Perform comprehensive CSV file operations including viewing, filtering, sorting, merging, splitting, deduplication, conversion (JSON/YAML/TSV/Markdown/HTML),...

Create, format, align, sort, transpose, and convert tables between Markdown, CSV, JSON, and TSV using pure Python without dependencies.

Convert colors between HEX, RGB, HSL, HSV, CMYK, generate palettes, check WCAG contrast, and export CSS variables using pure Python.