Password Generator — contraseñas seguras

Generador de contraseñas seguras y aleatorias, y frases de contraseña. Longitud, símbolos, copia con un clic. Todo local.

Password Generator - Strong Random Password Maker Password Generator creates a strong password the instant you open the popup. This password generator builds every random password locally with the browser's cryptographic random source — no accounts, no sign-ups, no tracking, and not a single network request. What appears on your screen never leaves your device. Weak and reused passwords remain the easiest way into someone's accounts. A password generator that produces a long, unpredictable, truly random password for every site closes that door. This password generator gives you exactly that, in two clicks: open, copy, done. KEY FEATURES 🔐 Instant results: a fresh strong password is ready the moment the popup opens 🎲 True randomness: crypto.getRandomValues with rejection sampling, never Math.random 📏 Length slider from 8 to 64 characters 🔠 Character classes you control: uppercase, lowercase, digits, symbols 👁️ Exclude ambiguous characters (0, O, 1, l, I) for passwords you may need to retype 📊 Live strength meter with entropy shown in bits 🧩 Passphrase mode built on the EFF short wordlist (1,296 words) 📋 One-click copy with clear visual confirmation 🌐 Interface localized into 33 languages TWO MODES IN ONE PASSWORD GENERATOR • Password mode — pick length and character classes, and the password creator guarantees at least one character from every class you selected. • Passphrase mode — four to eight memorable words such as "ramp-quartz-stove-vivid-canal", with your choice of separator and optional capitalization. Easier to remember, still a secure password. HOW TO CREATE A STRONG PASSWORD IN THREE STEPS 1. Click the Password Generator icon in your toolbar — a secure password is already waiting. 2. Adjust length and character classes, or switch to passphrase mode; the result updates instantly. 3. Press Copy and paste your new random password into the sign-up form. Your settings are saved locally, so the password generator reopens exactly the way you left it. WHAT THE STRENGTH METER TELLS YOU ✓ Weak — fine only for throwaway accounts ✓ Fair — acceptable for low-value logins ✓ Strong — solid protection for everyday accounts ✓ Very strong — suited to email, banking, and password manager master keys The meter is computed from real entropy (pool size and length), not from cosmetic rules, so this password generator tells you honestly how hard a password is to guess. WHY A LOCAL PASSWORD GENERATOR MATTERS An online tool that runs on someone else's server asks you to trust that the page is honest. This password creator removes the question entirely: generation happens inside the extension popup, the only permission it requests is local storage for your own settings, and there are no analytics and no external scripts. You can disconnect from the internet and the password generator keeps working. FAQ Q: Is every random password really unpredictable? A: Yes. The password generator uses the browser's cryptographic random source with rejection sampling, so every character is drawn without statistical bias. Q: Does this password generator store the passwords it creates? A: No. A generated password exists only in the popup until you copy it. Only your settings (length, classes, mode) are stored, locally. Q: What makes a passphrase a secure password? A: Each word is drawn from 1,296 options, so five words give about 51 bits of entropy — and the result is far easier to type and remember than symbol soup. Q: Can I avoid characters that look alike? A: Yes. One switch removes 0, O, 1, l and I, which is handy when a strong password must be typed by hand or read aloud. Q: Does the password generator work offline? A: Completely. Nothing in this extension ever talks to a network. WHO THIS PASSWORD MAKER IS FOR • Anyone replacing a reused password with a unique strong password per site • People who need a quick random password while registering an account • Admins and developers generating credentials, tokens, and test secrets • Users of password managers who want an independent password creator for master keys Install Password Generator, and the next time a form asks you to invent a password, the answer is one click away: a long, honest, secure password generated on your own machine.