Leaked Password Checker

What it does

Boost security at registration and login with our Leaked Password Checker API. Instantly cross-reference passwords against over 20 billion leaked credentials. Ensure safer user access and minimize breach risks efficiently and cost-effectively.

• 
  Checker2025 · ▲124

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• 
  LeaksAPI2024 · ▲8

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• 
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• KD
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  I built this after seeing multiple teams accidentally ship API keys in their frontend code. The problem: Modern web development moves fast. You're vibe-coding, shipping features, and suddenly your AWS keys are sitting in a tag visible to anyone who opens DevTools. I've personally witnessed this happen to at least 3-4 production apps in the past year alone. KeyLeak Detector runs through your site (headless browser + network interception) and checks for 50+ types of leaked secrets: AWS/Google keys, Stripe tokens, database connection strings, LLM API keys (OpenAI, Claude, etc.), JWT…

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