Free online BMI calculator. Enter your height and weight to quickly calculate your Body Mass Index (BMI). Understand your BMI category (Underweight, Normal, Overweight, Obese) and get tailored diet and exercise advice for healthy weight management.

Retrieve QQ, QQ Email, and QQ Space avatars based on QQ number

Convert plain text into various fancy English font styles. Supports 32 unique styles and allows one-click copying.

Explore the most complete online Emoji collection, featuring thousands of the latest and popular Emoji symbols. Easily browse by category (People, Animals, Food, Activities, Flags & more) or search by keyword. Copy any Emoji instantly with one click for easy pasting.

Online tool to query and validate Chinese national ID card numbers. Quickly find information like issuing region (administrative division code), date of birth, and gender.

Confused by family titles? Our Kinship Calculator instantly clarifies relationships. Enter 'father's sister' to find the correct term, how to address them, or how they address you. Simplify family connections!

Online tool to test keyboard keys by highlighting key positions, providing a clear indication of whether the keys are working properly.

Free online Chinese Almanac (Huangli/通胜) tool. Instantly check daily auspicious (Yi 宜) & inauspicious (Ji 忌) activities, lucky hours, directions, and traditional lunar calendar details.

Random Lottery Tool: Quickly configure participants and prizes, supports custom prize quantities and repeat winners. Perfect for events and corporate raffles!

Use our food calorie lookup tool to quickly find calories and nutritional information for various foods, including protein, fat, carbohydrates, and more. It's an easy way to manage your diet and health planning.

native browser device information detection

Query current and historical administrative division codes and information for China. Features province-city-district lookups, place name fuzzy search, and statistics on China's administrative structure and historical changes.

Use the line text online generator tool to easily convert letters and numbers into line text effects, supporting line breaks for display.

The Random Password Generator safely creates complex passwords, including numbers, uppercase and lowercase letters, and special characters.

A comprehensive and efficient online tool for special symbols. Find thousands of unique characters including emojis, math symbols, arrows, currency, punctuation, and number series. Supports quick search by keywords, and one-click copy. Enhance your work and social communication effortlessly.

The Blood Type Inheritance Tool provides professional genetic information services. Quickly calculate potential blood types for offspring, offering users valuable genetic insights and support.

Free online tool to quickly find postal codes and telephone area codes for cities and districts across China. Search by city, district, postal code, or area code. Essential for mail and communication.

Confused about waste sorting? Use our free Waste Classification Tool! Quickly find out if items are Recyclable, Hazardous, Wet, Dry, or Bulky Waste. Sort smarter, live greener.