Complete directory
All 21 free online tools
Find the right tool for development, writing, design, calculations or conversions. Everything runs privately in your browser.
Choose a category or browse every tool below
SEO Tools
Free online seo utilities with instant results.
Domain Tools
Free online domain utilities with instant results.
Developer Tools
Free online developer utilities with instant results.
- 02Base64 Encode / DecodeEncode plain text into Base64, or decode a Base64 string back into readable text — instantly, with no upload or size limit.
- 05Hash GeneratorGenerate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text instantly as you type.
- 06JSON FormatterPaste any JSON to instantly validate it, pretty-print it with proper indentation, or minify it down to a single line.
- 08CSS & JS MinifierPaste your CSS or JavaScript to strip comments and unnecessary whitespace, shrinking file size for faster page loads.
- 13URL Encode / DecodeEncode text for safe use in a URL query string, or decode an already-encoded URL back into readable text.
- 14UUID GeneratorGenerate one or many random version-4 UUIDs for use as unique keys, tokens, or database IDs.
Text Tools
Free online text utilities with instant results.
Design Tools
Free online design utilities with instant results.
- 03Color ConverterEnter a HEX color code and instantly see its RGB and HSL equivalents, with a live color preview.
- 04Gradient GeneratorPick two colors and an angle to build a linear or radial gradient, preview it live, and copy the finished CSS.
- 10QR Code GeneratorTurn any text, link, or Wi-Fi credential into a scannable QR code you can download instantly as a PNG.
Calculators Tools
Free online calculators utilities with instant results.
- 01Age CalculatorEnter your date of birth to instantly calculate your exact age in years, months, and days — plus the total number of days you've been alive. Works entirely in your browser, so nothing you enter is ever sent to a server.
- 09Percentage CalculatorThree of the most common percentage calculations in one place: what a percentage of a number is, what percent one number is of another, and percentage change.
- 11Tip CalculatorWork out the tip amount, total bill, and how much each person owes — instantly, with quick-tap tip percentage presets.
Converters Tools
Free online converters utilities with instant results.