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Calculate percentages, increases, and differences instantly.

Convert length, weight, temperature, and more.

Find mean, median, and mode for your datasets.

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

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.

Strip all numeric characters from text.

Strip symbols, punctuation, and special characters from text.

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

Convert text to Base64 and decode Base64 back to text.

Validate, format, and beautify your JSON code.

Generate secure, random passwords with custom length.

Convert any EVM address to its proper checksummed format.

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