Free XKCD Passphrase Generator 2025 | EFF Wordlist | 77-bit Security

Yes! A 4-word passphrase has significantly more entropy (~51 bits) than typical 8-character complex passwords (~28-40 bits). The key is using truly random word combinations from a large wordlist like the EFF list. In 2025, passphrases are particularly effective against AI-powered attacks that can crack pattern-based passwords.

Create a mental image or story connecting the words. For example, "correct horse battery staple" could be imagined as a correct horse powered by a battery, attached with a staple. Practice typing it a few times to build muscle memory. The human brain is naturally better at remembering word sequences than random character combinations.

Spaces are most natural and memorable. Dashes (-) work well for systems that don't allow spaces. Symbols add security but can reduce memorability - use them sparingly and consistently. For maximum compatibility, stick with dashes or underscores as separators.

Our generator runs entirely in your browser - no passphrases are sent to our servers. All cryptographic operations happen locally using your browser's secure random number generator. For maximum security, you can also use physical dice with the EFF wordlist to generate passphrases offline.

Only change passphrases if you suspect they've been compromised or for compliance requirements. Strong, unique passphrases don't need regular changes unless there's a specific security incident. Focus on using unique passphrases for each account rather than frequent changes.

Absolutely! Use a strong 8+ word passphrase as your password manager's master password. This gives you the security benefits of a long passphrase for the one password you need to remember, while the password manager handles unique random passwords for all your other accounts.

Passphrases and passkeys serve different purposes. Passkeys are excellent for user convenience and phishing resistance, but you still need strong passphrases for your device unlock, password manager, and accounts that don't support passkeys yet. Think of them as complementary security layers.

Yes, when generated randomly from a large wordlist like the EFF list. AI attacks excel at finding patterns in human-created passwords, but randomly selected word combinations provide no patterns to exploit. The entropy mathematics remain sound against both classical and AI-enhanced attacks.

Current quantum computers pose no threat to passphrase security. Even theoretical future quantum computers would need to break cryptographic algorithms, not brute-force passphrases. An 8+ word passphrase (103+ bits) provides security well beyond what even hypothetical quantum computers could break through brute force.

For 2025 security standards: 4 words minimum for low-risk accounts, 6+ words for the EFF standard (recommended for most accounts), and 8+ words for future-proof security including password manager master passwords. The extra words provide a significant security margin against evolving attack methods.