Fast browser-based utilities
Free online tools for text, data, dates, colors, and productivity
NimbleToolKit helps you finish small web tasks quickly with clean, focused tools that are easy to search, share, and reuse.
Popular tools
Word CounterCount words, characters, sentences, and estimated reading time online.JSON FormatterFormat minified JSON into readable, indented JSON.Date CalculatorAdd or subtract days, weeks, months, and years from a date.Unit ConverterConvert common length, weight, temperature, and volume units.Color Contrast CheckerCheck WCAG contrast ratios between text and background colors.Password GeneratorGenerate strong passwords with adjustable length and character sets.
Tool categories
Text ToolsClean, count, compare, sort, and transform text in your browser.
Developer ToolsFormat, encode, validate, and generate common developer utilities.
Date & Time ToolsCalculate dates, ages, time spans, timestamps, timers, and deadlines.
Unit & Number ToolsRun everyday calculations, conversions, percentages, and random picks.
Color ToolsConvert colors, test contrast, and build gradients for web projects.
Productivity ToolsSmall utilities for focus, checklists, passwords, and quick decisions.