Generate secure passwords with custom options
Generate secure passwords with custom options
Use this tool to secure your own accounts or systems.
This password generator builds random passwords right in your browser from the character sets you choose: uppercase letters, lowercase letters, digits, and a pool of common symbols. You control the length anywhere from 4 to 128 characters, and an exclusion option strips easily confused characters such as 0, O, l, and I for passwords that humans need to read or retype. Nothing you generate is sent over the network, and a real-time strength meter scores each result out of 100 based on length, character variety, and complexity so you can see how your settings affect robustness.
The single most important principle in password security is that length beats complexity. Adding symbol classes helps, but every extra random character multiplies the search space an attacker must grind through, which is why security researchers now recommend long random strings over short intricate ones. Just as important is uniqueness: every account deserves its own password, because credentials reused across sites become collateral damage when any one of those sites is breached. The batch mode here exists for exactly that reason, letting you mint 5, 10, or 20 distinct passwords with individual copy buttons.
Pair strong passwords with a password manager so you only ever memorize one master phrase, and enable two-factor authentication wherever it is offered. For related needs, the UUID Generator produces unique identifiers for development work, and the Random Number Generator handles drawings and sampling tasks.
For everyday accounts, 16 characters or more is a sensible target, and this tool supports lengths up to 128 characters. Length matters more than complexity: a long password made of random characters is far harder to crack than a short one heavy on symbols. Each additional character multiplies the time an attacker needs to guess the full string.
It helps when you or others will read and retype the password by hand, since those characters are easy to confuse visually and mis-enter. If the password will only ever be copied and pasted, keep them in for a slightly larger character pool. It is a convenience trade-off with a very small security impact.
Strength meters are estimates based on heuristics, and every tool weighs factors a little differently. This one scores length, character variety, and complexity bonuses on a 100-point scale. Treat the meter as directional guidance rather than an absolute measure, and prioritize length even when a shorter password scores well.
Yes. Use the batch option to produce 5, 10, or 20 passwords in one click, each with its own copy button. This is convenient when setting up multiple accounts or rotating credentials for a team, so you can assign a unique password to every service instead of reusing one.
No. Everything is generated locally in your browser and nothing is transmitted or saved to a server. The password disappears when you reload the page, so copy it into your password manager or wherever you keep credentials before leaving the page.