Random String Generator
DeveloperGenerate secure random strings for free in your browser: choose uppercase, lowercase, digits, symbols and a length up to 128 characters, then copy it.
Uses crypto.getRandomValues with unbiased sampling. Everything runs locally in your browser.
What is a Random String Generator?
A Random String Generator instantly produces random text from the character types you enable: uppercase, lowercase, digits and symbols. It uses the browser crypto.getRandomValues API with unbiased sampling, so results suit tokens, salts, one-time codes and test data.
What can you configure?
- Uppercase (A–Z): capital letters.
- Lowercase (a–z): lower-case letters.
- Digits (0–9): numbers.
- Symbols (!@#$…): punctuation and special characters.
- Length: any value from 1 to 128 characters; you can regenerate as many times as you like.
FAQ
- Is it really random? Yes — values come from crypto.getRandomValues, a cryptographic-quality source; every generation is fresh and independent.
- Can the same string appear twice? Randomness means a repeat is technically possible, but with long strings the chance is astronomically small.
- Is the result stored or uploaded? No — generation happens locally in your browser and nothing is sent to any server.
Frequently Asked Questions
What is Random String Generator?
Generate secure random strings with the character sets and length you choose, powered by crypto-grade randomness.
How do I use Random String Generator?
Type or paste your data into the field on this page and press the button. The result is calculated instantly in your browser — nothing is uploaded.
Is Random String Generator free?
Yes, Random String Generator is completely free. No signup, no downloads and no usage limits.
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