Tools that just work.

Calculate percentages, increases, and differences instantly.

Convert length, weight, temperature, and more.

Find mean, median, and mode for your datasets.

Select colors and get HEX, RGB, and HSL values.

Verify WCAG accessibility contrast ratios.

Create click-to-chat links without saving contacts.

Create QR codes for URLs, text, or contact info.

Convert between camelCase, snake_case, PascalCase and more.

Count words, characters, sentences, paragraphs, and reading time.

Convert text to Base64 and decode Base64 back to text.

Strip all numeric characters from text.

Generate secure, random passwords with custom length.

Strip symbols, punctuation, and special characters from text.

Sort lines A–Z or Z–A with deduplication options.

Decode 3-digit and 4-digit SMD resistor codes instantly.

Convert any EVM address to its proper checksummed format.

Convert between Wei, Gwei, Ether, and all intermediate units instantly.

Validate, format, and beautify your JSON code.