100% private – checked in your browser. We don’t store or send your passwords anywhere.
EduHeed’s free Password Strength Checker & Generator helps you create and evaluate secure passwords in seconds. Everything runs inside your browser – your text never leaves your device, and we don’t collect any data.
The checker estimates entropy (randomness in bits) based on length and character variety, flags risky patterns like sequences and repeats, and provides plain‑English tips to harden weak passwords. The generator uses
window.crypto.getRandomValues for high‑quality randomness (with a safe fallback) and can exclude ambiguous characters and repeated runs for better usability without sacrificing security.
For best results, use a unique passphrase of 14–20+ characters with a mix of lowercase, uppercase, numbers, and symbols. Avoid personal info, common phrases, and recycled passwords. Always enable two‑factor authentication (2FA) wherever possible.
No. All checks happen locally in your browser. We never send or save your passwords.
We combine length, variety (a/z, A/Z, 0–9, symbols), and pattern penalties (repeated or sequential characters) and show an entropy estimate in bits.
Yes – we use window.crypto.getRandomValues for cryptographically strong randomness. If unavailable, a secure fallback is used.
For privacy, this page does not contact external APIs. You can use haveibeenpwned.com separately (never reuse a leaked password).