Create easy to remember passwords from real words with leet speak transforms. Strong enough for security, simple enough to memorize.
Use ⌘ + D to bookmark this toolAn easy to remember password is built from real words you can visualize — like "coffee", "sunset", or "guitar" — then hardened with leet speak substitutions that swap letters for similar-looking numbers and symbols. The word coffee becomes c0ff33, and sunset becomes $un$3t.
The result looks complex to a password checker but stays memorable to you, because the original words still live in your mind. This approach is ideal for master passwords, device logins, and WiFi networks — anywhere you need to type a password from memory without a password manager.
| Input Word | None | Light | Heavy | Entropy Bonus |
|---|---|---|---|---|
| coffee | coffee | c0ff33 | c0ff33 | +4 to +8 bits |
| sunset | sunset | $un$3t | $un$37 | +4 to +8 bits |
| guitar | guitar | guit@r | 9u!7@r | +4 to +8 bits |
| castle | castle | c@$tl3 | c@$713 | +4 to +8 bits |
Light leet replaces a→@, e→3, o→0, s→$. Heavy leet adds i→!, t→7, g→9, l→1, b→8. The entropy bonus reflects the additional character variety attackers must account for.
Marble-Sunset-Kitchen-PilotCoffee-Sunset-Guitar-BlueChoose words that create a strong mental image — "volcano", "penguin", "neon". Concrete, visual words are far easier to recall than abstract ones like "concept" or "aspect".
Four random words from a 7,776-word list give ~52 bits of entropy before leet speak. Each additional word multiplies the difficulty of cracking by 7,776×. Five words is the sweet spot for most accounts.
In custom mode, pick words tied to personal memories — your first pet, a favorite place, a childhood food. These are meaningful to you but unpredictable to others.
Light leet (a→@, e→3, o→0, s→$) adds enough variety to pass most complexity checks without making your password unreadable. Heavy leet is rarely needed.
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A memorable password is built from real words — either randomly selected or chosen by you — then optionally transformed with leet speak substitutions (a→@, e→3, o→0, etc.). The result satisfies complexity requirements while remaining easy to recall because the underlying words form a mental image.
A 4-word memorable password with leet speak provides ~55-65 bits of entropy, comparable to a 10-character random password. Adding a 5th word pushes it to ~68-78 bits. For most accounts this is strong; for maximum security, use 5+ random words with heavy leet speak.
Leet speak adds a small but real entropy bonus (4-8 bits) because attackers must now test both the plain word and its substituted variants. More importantly, it helps meet site complexity rules that demand numbers and symbols — without making the password harder to remember.
Random words are stronger because each word comes from a known pool of 7,776, giving ~12.9 bits per word. Custom words chosen by humans are more predictable, so we apply a 0.6× entropy penalty. Use random words for high-security accounts and custom words for low-risk logins where memorability matters most.
Yes — a 5-word random memorable password with light leet speak (~68 bits) is an excellent master password. It's strong enough for a password manager vault while being easy to recall without writing it down. Use the 'Add number' and 'Pad symbol' extras for additional strength.
No. All generation happens entirely in your browser using the Web Crypto API (crypto.getRandomValues). No words, passwords, or settings are ever sent to a server. You can verify this by checking the Network tab in your browser's developer tools.