CSP Builder
Build and risk-score Content-Security-Policy headers visually.
OpenCheck password strength. - runs entirely in your browser. Free, fast and private.
Enter a candidate password without sending it anywhere.
Length, charset diversity, and patterns affect the score.
Dictionary words, sequences, and repeats are flagged.
Adjust until the meter reaches a safe strength level.
Before you reuse a "pretty good" password on a new admin panel, run it through Password Strength. The meter and feedback focus on length, variety, and obvious patterns, not on whether the string is unique across the internet.
Check candidates while you are rotating credentials or coaching a teammate who wants a short memorable password. Strength estimates are heuristics. A high score does not mean the password was never breached, and a medium score can still be fine if it is long, random, and unique.
Pitfall: optimizing for the meter by appending "1!" to a dictionary word. Attackers know that trick. Prefer a long random password or a multi-word passphrase from the generators on this site.
Tip: after you accept a strong value, store it in a manager and enable MFA where the service allows it.
The password you type is scored in this tab. We do not submit it to an online breach API as part of this check.
Related: Password Generator
Processes data instantly with no server round-trips.
Your data never leaves your browser. Nothing is uploaded.
Works in any modern browser. Nothing to download or install.
No limits, no sign-up, no credit card required.
Works on desktop, tablet and mobile devices.
Beautiful in both themes. Your preference is saved.
Keyboard shortcut
Sanity-check a new password before you save it.
Show why short patterned passwords score poorly.
Verify a generated string meets your policy bar.
Answers for this tool. For site-wide help, open the FAQ hub.
Generators and hashers run locally. Still, never paste production secrets into any site if your security policy forbids it.
Results live in page memory until you leave or clear. Favourites/history do not save password fields unless you explicitly store them in Vault.
When applicable, tools rely on Web Crypto or well-known libraries. Read on-page notes for exact algorithms (SHA-256, bcrypt-style notes, etc.).
After load, crypto helpers typically work offline. Confirm network independence for your threat model.
Browser CSPRNG (crypto.getRandomValues) powers secure generators when the tool states so.
Treat generated secrets like passwords - share only through approved password managers, never chat apps.
OneDevToolkit aids technical workflows; it is not a certification product. See Compliance for processing model language.
Always check you are on your real OneDevToolkit domain before entering sensitive material.
Contact us via Contact with responsible-disclosure details - do not include live production secrets.