Secure Password Generator
Generate a password that is difficult to guess by specifying the number of characters and character type.
Generation settings
Characters to use
Length20 characters
Available characters-
Estimated entropy-
Strength guideline-
Strength is a theoretical guideline determined from the number of characters and character set. It does not determine matches with service-specific restrictions or leaked passwords.
Generated result
Select "Generate passwords" to display the results.
Points for safe use
- We recommend at least 16 characters for general use and 20 characters or more for important accounts.
- Do not reuse the same password for multiple services.
- Manage your generated passwords with a reliable password manager.
- Please set according to the service's restrictions on the number of characters and usable characters.
About this tool
You can generate long, hard-to-guess passwords that are different for each service and match the required character requirements.
Features
- Combination of uppercase and lowercase letters, numbers, and symbols
- Length, number of passwords, ambiguous-character exclusion, and duplicate-character settings
How to use
- Select the number of characters and the type of characters to use.
- Set exclusion conditions and number of generation.
- Copy the generated results and save them in a safe location.
Limitations
- Generated passwords are not saved or synchronized.
- Don't reuse passwords; manage them using a password management tool.
Privacy: The input contents and processing results are processed within the browser and are not sent to or saved on the Develop Tools server.