Security / MAYEXA TOOLS

Password Generator

Generate random passwords with browser Web Crypto. Choose length and character classes, create batches and copy locally without a Mayexa account.

Processed on your deviceVersion 1.1.0

PRIVATE BY DESIGN

A fresh password for every account.

Choose your requirements. Generate on this device. Save in your password manager.

Password settings

Password length

Character classesUppercaseA-ZLowercasea-zNumbers0-9Symbols!@#$...

Exclude similar characters

Removes I, l, 1, O, 0 and o.

Number of passwords

8-128 characters. Up to 20 passwords. Every selected class is included.

Your passwords

Ready when you are.

Generate passwords to see your results here. They start hidden for privacy.

Copy and download are explicit actions. Downloads are plain text; copied secrets can remain in clipboard history.

How to use

Select the character classes accepted by your account, choose a length, then generate. Use a different password for every account and save it in a trusted password manager. Enable multi-factor authentication when available.

Local processing and limits

This tool uses browser Web Crypto randomness with rejection sampling and a secure shuffle. It sends no passwords to a server, stores no drafts and uses no AI. Clearing removes results from the workspace; it cannot erase clipboard history, downloaded files or guarantee erasure from browser memory. No randomness fallback is used if Web Crypto is unavailable.

Loading your private workspace…

How to use Password Generator

Choose length, batch count and the character classes accepted by your account.
Optionally exclude similar characters; at least one class must stay selected.
Generate, then show or copy individual passwords or the full batch. Downloads are unencrypted text files.
Save unique passwords in a trusted password manager. Clear results and remove clipboard/download copies when finished.

A practical example

Create five 20-character passwords with mixed character classes.

How it works

Web Crypto getRandomValues; rejection-sampled indices; one random character per selected class; alphabet fill; secure Fisher-Yates shuffle. Class enforcement is not uniform over all valid strings.

Limits and assumptions

8-128 characters; 1-20 passwords. Browser Web Crypto is required. No server requests, storage, drafts or password telemetry. Clipboard and text downloads contain unencrypted secrets. Model estimates are not breach checks or cracking-time predictions.

Length presets and custom 8-128 character lengthUppercase, lowercase, numbers and symbolsExclude similar charactersBatch of up to 20 passwordsHidden-by-default resultsIndividual and batch copyExplicit plain-text downloadConservative random-model lower boundClear results

CLEAR ANSWERS

Frequently asked questions

What does Password Generator help with?

A random password generator creates a fresh character sequence rather than adapting a memorable personal phrase. Mayexa uses browser Web Crypto and lets you choose length, character classes and batch size. Password results are generated locally and are not sent to usage analytics.

What should I check before relying on the result?

Clipboard histories and unencrypted TXT downloads can retain secrets after you clear the workspace. Remove unnecessary copies and protect any file you keep. The tool does not check breaches, inspect your accounts or promise that a password alone prevents compromise. Authentication protections and the destination service's handling of passwords still matter.

Do I need a Mayexa account?

No Mayexa account is required. Review the workspace's processing labels and limits before entering data.

Are passwords sent to a server?

No. Generation uses browser Web Crypto locally. No passwords are stored, sent to analytics or included in URLs.

What does the bits estimate mean?

It is a conservative model lower bound, assuming independent secure random draws: (length minus selected classes) times log2(alphabet size). Class enforcement does not produce a uniform distribution over all valid strings. The estimate is not a breach check or cracking-time prediction.

Are copies and downloads protected?

Copied passwords may remain in clipboard history. Downloads are unencrypted text files. Protect or remove those copies after saving your passwords. Clearing this workspace cannot remove them.

Learn the method and check the limits

Work through a practical example and understand how to interpret the result before relying on it.

Generate a Random Password and Handle Clipboard Copies Carefully