Documents & Productivity
CSV & Markdown tables, full-width/half-width, RMB uppercase, calendar & vCard, email headers, and more. 100% free, runs locally in your browser—nothing is uploaded to our servers.
CSV ↔ Markdown Table
EnterConvert between CSV and Markdown pipe table. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Full-Width / Half-Width
EnterConvert alphanumeric and common punctuation between full and half width. 100% free, runs locally in your browser—nothing is uploaded to our servers.
RMB Uppercase
EnterConvert amount to Chinese uppercase (yuan, jiao, fen). 100% free, runs locally in your browser—nothing is uploaded to our servers.
iCalendar Preview
EnterPaste .ics and list event summaries. 100% free, runs locally in your browser—nothing is uploaded to our servers.
vCard Parser
EnterDecode electronic business card fields into a table. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Email Header Parser
EnterUnfold folded lines and display key-value pairs. 100% free, runs locally in your browser—nothing is uploaded to our servers.
ID Card Validator
EnterValidate Chinese ID card number and extract info. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Chinese Traditional Colors
EnterTraditional color names with hex values, click to copy. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Relationship Calculator
EnterCalculate family relationship titles from relationship chain. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Periodic Table
EnterInteractive periodic table with element details. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Grid Paper Generator
EnterTian/Mi/Fang/Dot grid paper generation. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Chemical Equation Balancer
EnterAuto-balance chemical equations.