Password Generator
Secure random passwords
Password Generator: Secure random passwords. A free, browser-based tool from DevToolbox that runs entirely on your own device: no upload, no account, no tracking.
About the Password Generator
Generate strong passwords from the browser's cryptographic random source, with control over length and character sets, and see the entropy each choice buys you.
Generation uses the browser's cryptographic random source where randomness matters, so values are suitable for identifiers and secrets rather than being predictable pseudo-random output.
What you can do with it
- Random password
- Secure password generator
- Passphrase generator
- Strong password
How to use it
- Set how much you want and any options that apply.
- Generate, and the result appears immediately.
- Regenerate as many times as you like; nothing is stored or reused.
- Copy the output when you are happy with it.
Questions
- Is a password generated in a browser actually safe?
- The randomness comes from crypto.getRandomValues, the same source browsers use for cryptographic operations, not Math.random. Nothing is transmitted and nothing is stored, so the password exists only in this tab until you copy it.
- How long should a password be?
- Length buys more than complexity. Sixteen characters from a mixed set puts a password beyond brute force with current hardware; a memorable passphrase of five or more random words gets there too and is far easier to type.
- Is my data uploaded anywhere?
- No. The tool is JavaScript that runs in the tab you already have open, and DevToolbox has no backend to send anything to. You can open the network tab and watch: after the page and its script load, nothing is sent while you work.
Related tools
The Password Generator sits in Data & Productivity, one of the 90 tools on DevToolbox.