Free Online Tools — Private & Client-Side

Math & Calculators

Scientific calculator, percentages, ratios, tips, loans, and number base conversion.

Unit Conversion

Length, weight, temperature, area, volume, and data storage converters.

Text Tools

Word counter, case converter, lorem ipsum, find & replace, diff checker, and more.

Image Tools

Resize, compress, convert formats, crop, and encode images to Base64.

Color Tools

Color picker, format converter, palette generator, gradients, and contrast checker.

Encoding / Decoding

Base64, URL encoding, HTML entities, JWT decoder, Morse code, and hash generation.

Date & Time

Unix timestamps, date differences, date math, timezone conversion, and age calculator.

Developer Tools

JSON formatter, regex tester, CSS/HTML minifier, Markdown preview, and SQL formatter.

Generators

Password generator, UUID generator, QR code, favicon, and OG image generator.

Network / IT

Subnet calculator, chmod, SSL decoder, user agent parser, MIME lookup, IP converter, and bitmask calculator.