Is This Site Safe?

100% Client-Side Protection

Entering a password into a website feels wrong. Most tools send your data to a server to be processed, which creates a risk. Free Password Checker works differently.

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View the Source Code

Our code is open source. Audit the logic yourself on GitHub.

The Zero-Knowledge Architecture

Our tools are built on a "Local-First" philosophy. We use WebAssembly (Wasm) to run a heavy-duty security engine inside your browser, not on our server.

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Client-Side Only The logic lives in your browser. The characters you type never leave your device's RAM.
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No Logs, No Cookies We don't track what you type. There is no database on the backend to "leak."
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W3C Security Standards We use the browser's native Web Crypto API for secure, hardware-level randomness.

How to Verify

  1. Open your browser's Network Tab (F12).
  2. Type a password into the tool.
  3. Notice that zero requests are made.
  4. Try it with your Wi-Fi turned off—it works perfectly.
Keep Learning
📏 Length vs. Complexity 🔓 How Breaches Work 🔑 Password Managers
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