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Online Generators

Generate UUIDs, secure passwords, QR codes, placeholder text, and cron schedules. All tools are free, cryptographically secure, and run entirely in your browser.

UUID Generator

Generate random UUID v4 and v7 identifiers instantly.

Password Generator

Generate strong, random passwords with customizable options.

QR Code Generator

Generate QR codes from text or URLs with custom colors.

Lorem Ipsum Generator

Generate placeholder text by paragraphs, sentences, or words.

Cron Expression Generator

Build, parse, and validate cron expressions with a visual editor.

chmod Calculator

Calculate Unix file permissions with an interactive chmod calculator.

Slug / URL Generator

Generate URL-safe slugs from any text. Convert titles to clean, SEO-friendly URLs.

.gitignore Generator

Generate .gitignore files for any project. Select languages, frameworks, and IDEs to create a comprehensive .gitignore.

Available Generators

Which Generator Do I Need?

Each generator serves a different development scenario:

  • "I need a unique ID for a database record" → UUID Generator — use v4 for random IDs, v7 for time-ordered IDs that sort chronologically (better for database index performance)
  • "I need credentials for a new service/account" → Password Generator — creates cryptographically random passwords. Set length to 16+ characters with mixed character sets for maximum security
  • "I need a scannable code for a URL or text" → QR Code Generator — generates downloadable QR codes with custom colors. Works for URLs, Wi-Fi credentials, and plain text
  • "I need placeholder text for a design mockup" → Lorem Ipsum Generator — generates by paragraph, sentence, or word count. Choose randomized start for varied-looking mockups
  • "I need to schedule a recurring task" → Cron Expression Generator — build cron expressions visually and see a human-readable description. Includes presets for common schedules
  • "I need to set file permissions on a server" → chmod Calculator — interactive permission grid that shows both numeric (755) and symbolic (rwxr-xr-x) notation simultaneously

Other Developer Tools

Paste Anything — Smart Detector Tool Pipeline Builder JSON Formatter & Beautifier Base64 Encoder / Decoder URL Encoder / Decoder JSON Validator HTML Beautifier Regex Tester

Frequently Asked Questions

Are the generated values truly random?
Yes. Our UUID, password, and QR code generators use the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random values suitable for security-sensitive applications.
Can I generate values in bulk?
Yes. The UUID generator and password generator both support bulk generation — generate multiple values at once and copy them all.
Do these generators send data to a server?
No. All generation happens entirely in your browser using JavaScript APIs. Nothing is transmitted to any server.
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