Small, fast, client-side utilities. No sign-up, no tracking, no ads.
Format, validate, or minify JSON with syntax highlighting.
Convert between JSON arrays and CSV format instantly.
Live side-by-side editor and rendered preview for Markdown.
Paste two texts and see added, removed, and unchanged lines.
Convert text to camelCase, snake_case, PascalCase and more.
Encode plain text to Base64 or decode Base64 back to text.
Test regular expressions with live highlighting and a cheat sheet.
Generate a QR code from any URL or text. Download as PNG.
Cryptographically random strings for tokens, API keys, and secrets.
Generate strong passwords with a built-in strength meter.
Generate one or many UUID v4 identifiers. Copy all in one click.
Generate placeholder paragraphs, sentences, or word lists.
Hash passwords with bcrypt or verify a password against a hash.
Build cron expressions visually with a human-readable description.