All Free Online Tools
65 practical browser-based tools for Chinese culture, everyday calculations, text, design, and development. No sign-up, no data upload.
Chinese Name Generator
Draw a surname from the Hundred Family Surnames and build a Chinese name with pinyin, meaning, and history.
Chinese Zodiac Finder
Find your animal sign, traits, lucky numbers, and compatibility.
Chinese to Pinyin
Convert Chinese characters to pinyin with tone marks.
Lunar Calendar
Convert Gregorian and Chinese lunar dates with solar terms and festivals.
Chinese Vocab Quiz
Test your Chinese vocabulary with random HSK-style questions.
Chinese Dynasty Explorer
Find which dynasty ruled in any year from 2070 BC to today.
Festival Calendar
Lunar dates, customs, and foods for major Chinese festivals.
Weibo Trending
See today's Weibo hot search list with rankings and popularity scores.
100 Chinese Surnames
Browse 100 family names with pinyin, English meaning, population estimates, and history.
Chinese Girl Names
Explore beautiful female name characters with pinyin and English meanings.
Chinese Boy Names
Discover strong male name characters with pinyin and English meanings.
Chinese Tattoo Characters
Translate a word or name into Chinese with pinyin, safety checks, calligraphy previews, and PNG download.
Chinese Business Names
Learn how global brands translate names and build a Chinese company name.
Chinese Name Meanings
Read Chinese names character by character with pinyin and translation.
Chinese Address Formatter
Parse Chinese addresses and split province, city, district, and street.
Chinese ID Card Validator
Validate 18-digit Chinese ID numbers and extract birth date and gender.
Chinese Phone Validator
Check Chinese mobile numbers, carrier, and region with batch validation.
Google Trends Viewer
See top and rising Google searches by region and category.
China Daily Trending
A daily snapshot of Weibo hot searches translated to English.
Midjourney Prompt Builder
Build optimized Midjourney prompts visually with style and lighting controls.
AI Prompt Generator
Create well-structured prompts for ChatGPT, Claude, and Gemini.
Percentage Calculator
Find percentages, percentage change, and what percent one number is of another.
BMI Calculator
Calculate Body Mass Index with metric or imperial units.
Age Calculator
Calculate exact age in years, months, days, weeks, and total days.
Tip Calculator
Calculate tip, total bill, and per-person cost for any group size.
Loan Payment Calculator
Estimate monthly payments, total interest, and total loan cost.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly.
Color Converter
Convert between HEX, RGB, HSL, and HSV formats.
Pixel to REM / EM
Convert pixels to REM or EM units with a custom base font size.
Aspect Ratio Calculator
Calculate missing dimensions for common video and image ratios.
Image Compressor
Compress PNG, JPG, and WebP images in your browser with quality control.
Image Format Converter
Convert images between PNG, JPG, WebP, BMP, and GIF formats.
JSON Formatter
Pretty-print, validate, and minify JSON.
Base64 Encoder / Decoder
Encode text to Base64 or decode it back to plain text.
URL Encoder / Decoder
Encode special characters for URLs or decode percent-encoded strings.
Text & Word Counter
Count characters, words, sentences, and paragraphs.
Meta Tag Generator
Generate title, description, Open Graph, and Twitter meta tags.
Keyword Density Checker
Analyze word frequency and focus keyword density in any text.
Search Result Preview
See how your title, URL, and meta description look in search results.
Markdown Preview
Write Markdown and see the rendered HTML preview side by side.
HTML Entity Encoder
Encode and decode HTML entities.
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, or words.
Days Calculator
Find days between dates or add and subtract days.
CSV to JSON Converter
Convert CSV to JSON arrays or objects with preview and download.
Data Format Converter
Convert between JSON, XML, YAML, CSV, TOML, and INI.
Text Summarizer
Summarize any text with TF-IDF and adjustable summary length.
UUID Generator
Generate random UUID v4 identifiers in bulk.
Timestamp Converter
Convert Unix timestamps to human-readable dates and back.
Password Generator
Generate strong random passwords with custom options.
Hash Generator
Generate MD5, SHA-1, SHA-256, and other hashes.
Regex Tester
Test regular expressions against sample text with matches highlighted.
AI API Cost Calculator
Estimate GPT, Claude, Gemini, and DeepSeek API costs.
Cron Parser
Explain cron expressions in plain language.
IP Subnet Calculator
Calculate network address, broadcast, and usable IP range.
Byte Converter
Convert between Bytes, KB, MB, GB, TB, and PB.
CSS Minifier
Minify CSS by removing whitespace and comments.
JavaScript Minifier
Strip comments and whitespace from JavaScript.
Diff Checker
Compare two blocks of text side by side.
JWT Decoder
Decode JWT header, payload, and claims.
Number Base Converter
Convert between binary, octal, decimal, and hexadecimal.
Currency Converter
Convert between 160+ currencies with live exchange rates.
Mobile Data Calculator
Estimate monthly data usage from streaming and browsing.
API Mock Data Generator
Generate realistic mock API responses instantly.
JSON to TypeScript
Generate TypeScript interfaces from JSON objects.
SQL Formatter
Pretty-print and minify SQL queries.