Strong Password Generator — Secure Random Passwords (Free)

How to Use

Set the length of the password you need.
Choose which character sets to include: lowercase (a-z), uppercase (A-Z), digits (0-9) and symbols (!@#…).
Optionally enable Exclude ambiguous to drop easily confused characters like 0, O, 1, l and I.
Press Generate to produce a random password. A strength indicator rates it, and you can copy it straight away.

Passwords are generated entirely in your browser, so they are never transmitted, logged or stored anywhere. The character-set choices also change the strength rating, since including more types and a longer length both increase the space of possible passwords.

Always save a generated password in your password manager as soon as you use it — the tool intentionally does not store anything, so it cannot show it to you again later.

Tips

Length matters more than complexity. A 16-character password drawn from all four character types is substantially stronger than a short one, even one full of symbols. For most accounts, 12 to 16 characters is a sensible range. Reusing a password across sites is the biggest risk, so generate a fresh one for each account.

You should also generate both a human-friendly version (with ambiguous characters excluded) for anything you have to type by hand, and a longer all-inclusive version for services where you will rely on your password manager.

Why use it

Weak or reused passwords are the most common route into compromised accounts. A random generator removes the temptation to pick something memorable but predictable. Because it runs locally and stores nothing, it is also private — no third party ever sees the credentials you create. Generating a strong password takes one click and works for free.

Real-world use cases

API development: Format JSON responses from Chrome DevTools before committing fixtures.
Debugging: Validate timestamps, regex or hashes without switching to a terminal or IDE.
On-call fixes: From your phone, quickly convert timezone or generate a UUID for a hotfix branch.

How it compares

Tool	Offline	Privacy	Setup	Cost
This tool	Yes	100% local	None	Free
Server tools	No	May log IP	None	Free/Ads
CLI / IDE plugin	Yes	Local	Install & config	Free

For quick checks without context switching, the browser tool is fastest. For CI, keep the CLI as source of truth.

Pro tips

Bookmark the tool. With prefetch enabled, it opens near-instantly next time.
For secrets like hashes with salts, prefer your local terminal for production values.
Pair UUID/Password generators with your password manager for rotation workflows.

FAQ

How do I generate a strong password?

Set the length you want, tick the character types to include (lowercase, uppercase, digits, symbols), and press Generate. The tool shows a strength rating and lets you copy the result. Everything runs locally, so the password is never sent anywhere.

How do I create a password that is hard to guess?

Use a longer length — 12 to 16 characters — and include a mix of uppercase, lowercase, digits and symbols. Longer random passwords are far stronger than short ones that reuse familiar words. You can also exclude ambiguous characters like 0, O, 1, l and I.

Can I avoid confusing characters like 0 and O?

Yes. Switch on "Exclude ambiguous" and the generator removes 0, O, 1, l and I from the output, so the password is easier to read and type without mistakes.

Is it safe to paste production secrets?

Local processing is safer than server tools, but avoid pasting real production secrets anywhere.

Does this work offline?

Yes. After the first load the tool works without network.

Can I use this on mobile?

Yes. All developer tools are responsive and work on phones.