Password Generator
Generate strong, random passwords locally in your browser. Nothing is sent anywhere.
Generate a cryptographically random password with a custom length and choice of uppercase, lowercase, numbers, and symbols. Password strength is generated using the browser's secure random number source, not a predictable pseudo-random function, and the result never touches a server since generation happens entirely on your device. Useful for creating unique, high-entropy passwords for new accounts without reusing or weakening an existing one.
Runs on your device. This tool processes your file inside this browser tab. Nothing is uploaded, so it also works offline once the page has loaded, and closing the tab discards the file from memory.
Loading tool
How it works
- 01
Set your desired password length.
- 02
Toggle uppercase, lowercase, numbers, and symbols.
- 03
Click Generate and copy the password.
Details
- Category
- Developer & data
- Runs
- In your browser
- Files uploaded
- No
- Cost per run
- Free
- Sign-in
- Not required
- Works offline
- Yes, once loaded
Last updated 2026-08-12
Common questions
How random is the generated password?
It uses the browser's cryptographically secure random number generator (crypto.getRandomValues), not a weaker Math.random-based approach.
What length should I use?
16 characters or more with mixed character types is a reasonable modern default for most accounts.
Is the password stored or sent anywhere?
No - it's generated and displayed locally in your browser and never transmitted or logged.
Can I exclude ambiguous characters like 0/O or l/1?
Character set toggles control which categories are included; review the generated password if a service has stricter formatting rules.
Use this from your code
This tool is also a REST endpoint, so you can run it in a pipeline instead of by hand. It is free and needs no API key. See the API reference for every parameter.
curl -X POST https://fileoven.com/api/v1/tools/password-generator \
-H "Content-Type: application/json" \
-d '{"length":20,"count":1}'