# Generators & Randomizers

> Generate random data, unique identifiers, secure passwords, and placeholder content for your projects.

- **Source:** DevDreaming (https://devdreaming.com)
- **Canonical URL:** https://devdreaming.com/tools/category/generators

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Generate random data, unique identifiers, secure passwords, and placeholder content for your projects.

All tools run client-side in your browser -- no signup, no upload.

## Tools in this category

- [UUID Generator](https://devdreaming.com/tools/uuid-generator) -- Generate random UUIDs (v4) or create UUIDs based on namespaces (v5). Copy with one click.
- [Lorem Ipsum Generator](https://devdreaming.com/tools/lorem-ipsum-generator) -- Generate placeholder text in various formats - paragraphs, sentences, or words. Perfect for mockups and prototypes.
- [Password Generator](https://devdreaming.com/tools/password-generator) -- Generate secure, random passwords with customizable length and character types.
- [Random Number Generator](https://devdreaming.com/tools/random-number-generator) -- Generate a list of unique or repeated random integers within a specified range.
- [Fake User Generator](https://devdreaming.com/tools/fake-user-data-generator) -- Generate realistic mock data (names, emails, addresses) for testing and seeding databases.
- [QR Code Generator](https://devdreaming.com/tools/qr-code-generator) -- Generate customizable QR codes for URLs, text, or any data. Download as PNG or SVG with custom colors.
- [Percentage Calculator](https://devdreaming.com/tools/percentage-calculator) -- Calculate percentages, increases, decreases, and percentage changes.
- [Roman Numeral Converter](https://devdreaming.com/tools/roman-numeral-converter) -- Convert between decimal numbers and Roman numerals (1-3999).
- [Number Base Converter](https://devdreaming.com/tools/number-base-converter) -- Convert numbers between binary, octal, decimal, and hexadecimal bases.
- [Date Calculator](https://devdreaming.com/tools/date-calculator) -- Calculate date differences, add/subtract days, and compute age from dates.

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