--- title: "Password & Passphrase Generator - TechVoyage" canonical_url: "https://techvoyage.dev/tools/password-generator" last_updated: "2026-10-20T09:53:47.515Z" meta: description: "Generate strong random passwords or word-based passphrases in your browser with the Web Crypto API. Nothing is sent to a server." "og:description": "Generate strong random passwords or word-based passphrases in your browser with the Web Crypto API. Nothing is sent to a server." "og:title": "Password & Passphrase Generator - TechVoyage" --- # **Password & Passphrase Generator** Generate strong random passwords or word-based passphrases in your browser with the Web Crypto API. Nothing is sent to a server. **Length** **Uppercase (A–Z)** **Lowercase (a–z)** **Numbers (0–9)** **Symbols (e.g. !#%*)** **Exclude ambiguous characters (O, 0, l, 1, I)** Entropy: ≈ 0 bitsStrength: **Weak** Generated locally with crypto.getRandomValues. Nothing leaves your device. ## **About this tool** Passwords are built from the character sets you enable using the browser's cryptographically secure random generator, and passphrases are drawn from the 2,048-word BIP-39 English list. Entropy is shown as an estimate so you can compare settings. Everything runs in your browser; no password is ever transmitted or stored. ## **FAQ**
**How long should my password be?**
Aim for at least 16 random characters, or a passphrase of 5–6 words. Length matters more than symbol complexity.
**Are passphrases stronger than passwords?**
A six-word passphrase has about 66 bits of entropy, which is strong and much easier to remember. Random passwords can reach the same strength in fewer characters but are harder to memorize.
**Is it safe to generate passwords on a website?**
Here, yes: generation happens locally with the Web Crypto API and the page makes no network request with the result. For maximum safety, you can disconnect before generating.