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Strong Password & Passphrase Generator

Select at least one character type
Entropy Strength:Military-Grade Uncrackable
18 characters

Strong Password & Passphrase Generator

Essential
4.95•890K Users•100% Client-Side Privacy
Unlimited Free

Generate high-entropy cryptographically secure passwords and passphrases with custom length and symbols.

Up to 64 charsEntropy meterSymbols & numbers toggleOne-click instant copy

How to Use Strong Password & Passphrase Generator

Follow these simple steps to process your files securely in browser memory.

1Step 1 of 3

Choose Password or Passphrase Mode

Select Random Characters or Memorable Word Passphrase.

Pro Tip: Passphrases (e.g. correct-horse-battery-staple) are easy for humans to remember but computationally impossible to crack.
2Step 2 of 3

Configure Length & Character Sets

Adjust slider (8 to 128 characters). Toggle uppercase, lowercase, numbers, and symbols.

Pro Tip: Exclude ambiguous characters (0, O, 1, l, I) to prevent confusion when sharing.
3Step 3 of 3

Copy Generated Secret

Inspect the real-time Entropy bits rating and click "Copy Password".

Pro Tip: Generated using hardware cryptographic random number generators with zero server transmission.

Who Is Strong Password & Passphrase Generator Built For?

Designed for professionals seeking fast, private, and unlimited client-side execution.

Primary Target Audience
🎯Security-Conscious Individuals & Sysadmins
Also Widely Used By
IT Support StaffRemote WorkersCrypto Custodians
Typical Real-World Use Cases
  • Generating uncrackable high-entropy master passwords for 1Password/Bitwarden
  • Creating memorable multi-word passphrases (Diceware style) for device encryption PINs
  • Generating secure random API keys and database root passwords during server provisioning

Hardware Entropy

Non-deterministic cryptographic randomness.

Diceware Passphrases

Memorable words with massive crack resistance.

Frequently Asked Questions about Strong Password & Passphrase Generator

Never. All entropy is harvested locally using your device’s Web Crypto API (crypto.getRandomValues). The generated string exists strictly in your local tab RAM and disappears when refreshed.
Top Search Queries for Strong Password & Passphrase Generator:
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