Random String Generator — Passwords, Tokens & API Keys Free
Generate cryptographically secure random strings instantly
Custom length, charset, and quantity. Perfect for passwords, tokens, API keys. Uses secure browser randomness.
Quick Presets
Random String Generator — Free Online Tool
Use this free online tool instantly. No signup, no watermark, 100% free forever. Works on all devices.
Why Use This Tool?
Get results in seconds — no waiting, no processing queue, no delays.
All processing happens in your browser. Files never leave your device.
Open the tool and use it immediately. No account or registration needed.
Not a trial, not freemium. 100% free forever with no hidden charges.
Works on desktop, tablet and mobile — iPhone, Android, any browser.
Pure browser-based tool. No software download or installation required.
How It Works
3 simple stepsConfigure Options
Set string length, choose character types (letters, numbers, symbols), and select how many strings to generate.
Click Generate
Hit Generate and get cryptographically secure random strings instantly.
Copy Results
Copy individual strings or all results at once with a single click.
Why Choose Random String Generator
Cryptographically Secure
Uses window.crypto.getRandomValues() — suitable for passwords and tokens.
Fully Customizable
Choose length, charset, quantity, and exclude ambiguous characters.
Bulk Generation
Generate up to 100 unique strings at once.
Multiple Presets
One-click presets for passwords, API keys, UUIDs, and hex tokens.
100% Private
All generation is local. Nothing sent to any server.
Free Forever
No signup, no account, unlimited use at zero cost.
Frequently Asked Questions
Your Privacy, Our Priority
We don't store any of your data or files. All files are instantly deleted after your use completes.