A strong password generator builds a random string from the sets you allow: small letters, capital letters, numeric digits and special characters. Length is a slider from 8 to 64. Each generate draws from a cryptographic random source in the browser. Copy it into a password manager; do not reuse it across sites.
Options that actually matter
Length beats clever substitutions. A 16-character mix of uppercase, lowercase, numbers and symbols is far harder to guess than an 8-character word with a “!”. If a router admin page rejects symbols, uncheck special characters and generate again — still keep the other three sets on. This is a random password tool, not a mnemonic phrase builder.
Wi-Fi passwords and speed
A new Wi-Fi password does not raise Mbps. After you rotate the key, confirm the house still performs with a Wi-Fi speed test. Other online tools include a word counter and Base64 encoder.
Common questions
Are generated passwords stored?
No. Generation uses the browser’s cryptographic random source in this tab. SpeedMetric never sees the result.
What should I include in a strong password?
Use enough length (16+ is a solid default) and mix lowercase, uppercase, numbers and special characters unless a site forbids a set. Uncheck only what the site rejects.