🔑 Password Generator ☆

Overview

Our Free Password Generator is a free online security tool that creates strong, random passwords instantly. No sign-up required. Weak passwords remain the most common security failure. Our generator creates passwords with customizable length (4-128 characters), character types (uppercase, lowercase, numbers, symbols), and advanced options like passphrase mode, exclude ambiguous characters, require all character types, and prevent repeating characters. Each password is generated using cryptographically secure randomness directly in your browser. Your passwords are never stored, logged, or transmitted to any server. The built-in strength meter and entropy analysis show you exactly how secure your password is, including estimated crack time. You can also use the passphrase mode to generate memorable word-based passwords (like "correct-horse-battery-staple") that are both strong and easy to remember. The bulk generator creates up to 100 passwords at once. With the save feature, you can store passwords locally in your browser for quick access. Email, banking, social media and work accounts all get strong protection with zero friction. No downloads, no registration, no data collection. Just instant, private password generation that works on any device.

How the generator creates randomness

Passwords are built from the browser's cryptographically secure random number generator (Web Crypto), not Math.random. Each character is drawn uniformly from the pool you enable, and the strength meter converts the result into entropy bits and an estimated offline crack time. A 16-character password using all four character classes carries roughly 100 bits of entropy; the same length in passphrase mode trades a little entropy for something you can actually remember.

Technical specifications

Property	Password generator behavior
Length	4-128 characters, or 3-10 words in passphrase mode
Character sets	Uppercase, lowercase, digits, symbols: any combination
Randomness	Web Crypto CSPRNG, uniform selection, no modulo bias
Options	Exclude ambiguous characters, require every class, no repeats
Bulk mode	Generate up to 100 passwords per run
Strength analysis	Entropy in bits plus estimated offline crack time
Processing	100% client-side; nothing is generated, sent or logged server-side
Cost	Free, no account, unlimited passwords

Privacy: passwords never leave the browser

A password manager is only as safe as the tool that creates the passwords. Everything here runs locally: no password is ever transmitted, logged or stored on a server, and the optional save feature keeps entries in your own browser storage. Close the tab and any unsaved password is gone, which is exactly what you want. The page even works offline once loaded.

Password hygiene tips

• Use at least 16 characters for email, banking and work accounts.
• Never reuse a password across services, one breach would unlock the rest.
• Prefer passphrases when a site limits symbols or you must type it often.
• Store generated passwords in a reputable password manager, not in notes.
• Enable two-factor authentication even with a strong password.

Strengthen your setup with more privacy and security tools, including leak and fingerprint tests.

Choosing settings for each type of account

Not every account deserves the same configuration. Banking, email and password-manager master passwords warrant 20 characters or a five-word passphrase with every character class enabled. Work and cloud accounts sit comfortably at 16 characters. Streaming services, forums and one-off shops can use 12-14 characters, but they still must be unique, breaches of low-value sites are exactly how credential stuffing starts. Sites that reject symbols or cap length are the main reason passphrase mode exists: four to six random words clear most length minimums while staying typeable. For Wi-Fi passwords you must share, a shorter passphrase balances security with practicality, and the bulk mode is the fastest way to mint a set of unique passwords when onboarding a team or rotating credentials.

What the crack-time estimate means

The estimate assumes an attacker with the hash and a fast offline rig testing billions of guesses per second, which is the realistic worst case after a database breach. Length dominates that math: every extra character multiplies the search space, while adding a symbol class helps far less than most people expect. That is why a long passphrase can beat a short jumble of symbols. Online attacks are slower but also rate-limited, so the practical rule is simple: unique password everywhere, long enough that offline cracking is infeasible, and two-factor authentication wherever it is offered.