QR codes, password generator, JSON formatter, contrast checker, and more tools for developers.
Generate QR codes with custom size, colors, and error correction level.
Generate secure random passwords with configurable length and character types.
Pretty-print or minify JSON data with syntax validation.
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text.
Generate random UUID v4 identifiers in bulk.
Convert between Unix timestamps and human-readable dates.
Test regular expressions with live matching and capture group display.
Check WCAG color contrast ratios between foreground and background colors.
Write and preview code with syntax highlighting for 20+ languages.
Render LaTeX math equations with live preview.
Create beautiful CSS gradients with a visual builder.
Design CSS box shadows with a visual editor.