4coders

Password & Secret Generator

Strong secrets with live entropy — CSPRNG.

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Entropy0 bits · weak

About this tool

Generates cryptographically secure random strings using the browser's Web Crypto API. Shows live entropy estimates and lets you control length and character sets.

Common use cases

  • Create strong passwords for user accounts or services
  • Generate API keys, tokens or secrets for development and testing
  • Produce random strings matching specific requirements (length, symbols, etc.)

Further reading

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UUID

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