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Privacy & Safe Sharing

Password Strength Checker.

Files, text, passwords, tokens and results remain in this browser. Estimate strength locally without transmitting the password or claiming certainty. Uses explicit bounds and independent local verification.

Use Password Strength Checker

Private in this browser. No network request, localStorage, IndexedDB or OPFS is used for operation data.

Tool options
Preparing the local tool…

How it works

  1. 01

    Enter bounded data or choose a local file.

  2. 02

    Set the disclosed options and run the operation.

  3. 03

    Review the independently verified result and limitations.

Frequently asked questions

Is the result a security certificate?

No. It covers only the disclosed local operation and its independent checks.

Does Password Strength Checker upload my data?

Password Strength Checker runs locally in your browser. No network request, localStorage, IndexedDB or OPFS is used for operation data.

What output does Password Strength Checker create?

Password Strength Checker creates Json output after the result passes its local verification checks.

Local File EncryptorEncrypt one or more files with authenticated encryption and a user passphrase. Uses explicit bounds and independent local verification.Local File DecryptorDecrypt files produced by the site after user supplies the correct passphrase. Uses explicit bounds and independent local verification.Password GeneratorGenerate passwords or passphrases locally using cryptographic randomness. Uses explicit bounds and independent local verification.
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