Developer Data Tools
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Security tool

Password Generator

Generate random passwords for local development, test users and throwaway fixtures in the browser.

Tool Workspace

This tool runs in your browser. Developer Data Tools does not save pasted input to a server, but avoid using production secrets, access tokens, private keys or sensitive business data in any online page.

Ready. Processing runs in your browser.

Core Features

  • Use crypto.getRandomValues for browser randomness.
  • Configure length, count and character groups.
  • Generate multiple local test passwords.
  • Avoid sending generated values to a server.

Common Errors

  • Reusing generated test passwords in production.
  • Saving secrets in screenshots or tickets.
  • Choosing too short a length for real accounts.

Real Developer Use Cases

  • Creating local seed users.
  • Testing password validation rules.
  • Preparing throwaway demo credentials.
JSON Formatter & Validator

Format and validate copied API responses.

Text Diff Checker

Compare generated output and source snippets.

Base64 Encoder/Decoder

Inspect encoded data fragments.