Color Palette Generator
Choose a base color and generate nine light-to-dark HEX shades to compare and copy.
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Featured Online Tools
High-performance utilities for digital professionals.
BMI Calculator
Calculate BMI, see the standard adult category, and estimate the reference weight range for your entered height.
LaunchJSON Formatter & Validator
Format, compact, or validate JSON in your browser with live output, line numbers, folding, search, and adjustable font size. Copy or download the result.
LaunchWord Counter
Count words, characters, sentences, and paragraphs as you type or paste. Choose a reading speed for reading time, review the most frequent words, and set a word target to track progress.
LaunchRoman Numeral Converter
Convert whole numbers from 1 to 3999 into Roman numerals, or turn Roman numerals like MMXXIV back into numbers.
LaunchSHA-256 Hash Generator
Hash text or a local file with SHA-256 entirely in your browser. Copy the digest as lowercase hex, uppercase hex, or base64.
LaunchBMR Calculator
Estimate your basal metabolic rate in kcal per day from age, sex, height, and weight, using the Mifflin-St Jeor, Revised Harris-Benedict, or Katch-McArdle equation, with a daily calorie table for five activity levels.
LaunchQR Code Generator
Generate scannable QR codes for URLs, text, WiFi, email, phone, SMS, and vCards with custom colors, a center logo, and PNG or SVG export, all in your browser.
LaunchXML Formatter & Validator
Format XML with readable indentation and check XML syntax for common structural errors.
LaunchPercentage Change Calculator
Calculate the percentage increase or decrease between two values, with the step-by-step formula, the percent difference, and a reverse mode that finds the original value. Free and private.
LaunchTXT to PDF Converter
Convert plain text into a downloadable PDF in your browser. Paste text or drop a .txt file and set page size, margins, font, line spacing, alignment, headers, footers and page numbers.
LaunchJSON Viewer
Explore JSON in an interactive tree with search, node paths, type labels, and copy options. Everything runs in your browser.
LaunchFeatured Games
Fun, fast, and free games you can play right in your browser.
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