Random String Generator
Generate secure random strings in bulk with custom character rules, formatting options, and export-ready output.
Built for Developer and QA Workflows
Cryptographic randomness
Uses browser crypto API for stronger randomness than Math.random-based generators.
Advanced charset control
Enable uppercase, lowercase, numbers, symbols, and custom characters.
Batch mode
Generate up to 1000 strings at once for test fixtures, tokens, and samples.
Flexible output
Copy or download output in line, CSV, or JSON formats.
High-Intent Use Cases
- ✓API key mock data
Generate synthetic string values for development and staging environments.
- ✓QA input testing
Test form validation with different lengths, symbols, and edge-case strings.
- ✓Campaign codes
Create prefixed or suffixed promo and referral string IDs.
Frequently Asked Questions
Is this random string generator secure?
Yes. It uses `crypto.getRandomValues`, which is suitable for stronger randomness requirements in modern browsers.
Can I exclude confusing characters like O and 0?
Yes. Enable the ambiguous-character exclusion switch to remove lookalike characters for better readability.
Can I export generated strings in CSV?
Yes. You can choose line, CSV, or JSON output and then copy or download the results directly.
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