Skip to content
Codesphere
← All tools
</>

Password Generator

Generate strong passwords locally with entropy feedback.

Passwords are generated with crypto.getRandomValues and never leave your browser.

Generated126.8 bits · Excellent
P=9?=,jLLzn!dUicaYCi
Uqeh23E{+*)&=6eL);b4
U3uY-3h&Lac@tqtj~ub+
hYc3bVGhK+@EFC2!=xCS
YC,_ns_n^8/yCPit^yfq

About the Password Generator

Generate strong random passwords locally with browser cryptography, length controls, character-set toggles, ambiguous-character filtering, bulk output, and an entropy-based strength meter. Generated passwords never leave your browser.

How the result is produced

Passwords are generated with the browser's cryptographic random source and the selected length, character sets, ambiguity filter, and batch size. The output remains in the browser unless you copy it elsewhere.

Example: A 20-character password using multiple character groups has a larger estimated search space than a short lowercase-only password, subject to the selected alphabet.

Limitations and review notes

The entropy figure is an estimate based on the configured character set, not a guarantee of account security. Use a password manager, unique credentials, and the target service's security controls; never share generated secrets through URLs or chat.

How to use it

  1. 1. Choose the password length and how many values to generate.
  2. 2. Toggle lowercase, uppercase, numbers, symbols, and ambiguous-character filtering.
  3. 3. Check the entropy estimate and strength label.
  4. 4. Copy one password or the entire generated batch.

FAQ

Do generated passwords leave my browser?

No. Password generation uses browser crypto locally after the page loads and does not send generated values to CodeSphere.

What random source does it use?

It uses crypto.getRandomValues, the browser cryptographic random generator, rather than Math.random.

What does exclude ambiguous mean?

It removes easy-to-confuse characters such as O, 0, o, 1, l, I, and the vertical bar.

Can I generate passwords in bulk?

Yes. Generate between 1 and 100 passwords at once, then copy individual values or the whole batch.

Related tools

View category →

Was this useful?