The little tools that make work feel effortless.
Fast, privacy-minded utilities for everyday tasks.
155focused utilities, one quiet directory
Showing 155 tools
24 Game Solver
Find arithmetic expressions that combine four numbers to make 24.
Reference tables24 Solar Terms Reference
Browse the traditional Chinese 24 solar terms in calendar order.
Reference tablesADB Command Reference
Search frequently used Android Debug Bridge commands.
Reference tablesAndroid Manifest Permissions
Search common Android permissions and their purpose.
Reference tablesASCII Table
Browse decimal, hexadecimal, character, and control-code values.
Reference tablesASP Error Code Reference
Search common classic ASP and IIS error codes and meanings.
Reference tablesBase64 Alphabet Table
Reference every Base64 index and its corresponding character.
Encoding toolsBase64 Encoder & Decoder
Encode text to Base64 or decode Base64 locally in your browser.
Developer formattingBatch Link Generator
Convert one URL per line into HTML anchors or Markdown links.
Developer formattingBatch URL Opener
Validate a list of web addresses and open them from one page.
Encoding toolsBinary & Text Converter
Convert UTF-8 text to binary bytes or binary bytes back to text.
Text utilitiesBlank Line Remover
Remove empty lines or trim every line in pasted text.
Date, time & calculatorsBMI Calculator
Calculate adult body mass index from height and weight.
Date, time & calculatorsBody Measurement Ratio Calculator
Calculate waist-to-hip, bust-to-waist, and waist-to-height ratios.
Date, time & calculatorsBody Shape Calculator
Estimate a broad body-shape category from bust, waist, and hip measurements.
Live lookup servicesBrand Ranking Lookup
Search category-specific brand ranking data through a configured research provider.
Web & SEOBrowser Information
Inspect browser, language, screen, network, and capability information.
Reference tablesCar Brand Reference
Search major automotive brands by country and parent group.
Date, time & calculatorsCar Loan Calculator
Estimate monthly vehicle-loan payments and total interest.
Date, time & calculatorsChild Height Estimator
Estimate adult height from parental heights and sex.
Reference tablesChina IDC License Verification
Use official MIIT systems to verify internet data center and value-added telecom licenses.
Date, time & calculatorsChina Individual Income Tax Calculator
Estimate annual resident comprehensive-income tax using the statutory brackets and deductions.
Reference tablesChina License Plate Prefixes
Search provincial-level Chinese vehicle registration abbreviations.
Reference tablesChina Metro Official Links
Find official urban rail operator and network-information portals for major Chinese cities.