Mr. Tools

How to

How to use the Password Generator

The Password Generator creates strong random passwords in your browser while you adjust the rules. You can choose a preset, set length and count, include lowercase, uppercase, numbers, and symbols, exclude confusing characters, and require minimum counts by character type. After generating candidates, compare strength, entropy, and rule checks, then copy the password you want to use.

Use Password Generator
Password Generator thumbnailPassword Generator thumbnail
Steps
2 steps
Guide
With screenshots
Content
Notes and FAQ

Use Cases

When to use it

  • Create a strong password during account signup
  • Prepare several temporary passwords at once
  • Generate readable passwords with fewer confusing characters
  • Create alphanumeric passwords without symbols
  • Avoid password reuse by generating a fresh one each time
  • Generate passwords in the browser without sending data anywhere

Capabilities

What this tool can do

  • Generate multiple passwords at once
  • Choose length and count
  • Toggle lowercase, uppercase, numbers, and symbols
  • Exclude ambiguous characters
  • Use standard, fewer symbols, or alphanumeric presets
  • Copy one result or copy the whole list

Steps

Steps

The order of operations and checkpoints are listed so you can proceed while looking at the screen.

STEP 1

Choose rules and generate passwords

Select a preset, then adjust length, count, character groups, minimum counts, and excluded characters before pressing Generate password.

パスワード生成ツールの設定エリアを示す画面パスワード生成ツールの設定エリアを示す SP 画面

Checkpoints

  • You can switch the base rules with presets
  • Length and count are within the required range
  • Only character groups accepted by the destination service are enabled

Actions on this screen

01
Preset

Choose a preset such as Balanced, Readable, or Strict to start from rules that match readability or symbol requirements.

Supporting capture showing where to use PresetSupporting capture showing where to use Preset
02
Length and count

Length directly affects strength. Increase the count when you want to compare several candidates.

Supporting capture showing where to use Length and countSupporting capture showing where to use Length and count
03
Character groups and exclusions

Adjust lowercase, uppercase, numbers, symbols, minimum counts, confusing characters, and custom exclusions.

Supporting capture showing where to use Character groups and exclusionsSupporting capture showing where to use Character groups and exclusions

STEP 2

Review strength and copy a result

Check each generated password's strength, entropy, and rule checks, then copy the candidate you want to use. Open details when you need to verify the rule results.

パスワード生成ツールの生成結果とコピー操作を示す画面パスワード生成ツールの生成結果とコピー操作を示す SP 画面

Checkpoints

  • Strength is visible for each candidate
  • Minimum counts and excluded character rules are satisfied
  • You can copy only the candidate you need

Actions on this screen

01
Strength

Review weak, standard, strong, or very strong together with the entropy estimate.

Supporting capture showing where to use StrengthSupporting capture showing where to use Strength
02
Rule checks

Confirm that character groups, minimum counts, and excluded characters match the selected settings.

Supporting capture showing where to use Rule checksSupporting capture showing where to use Rule checks
03
Copy one password

Copy the candidate you want and paste it into the signup form or password manager.

Supporting capture showing where to use Copy one passwordSupporting capture showing where to use Copy one password

Notes

Notes

Important points are grouped with reasons so you can make decisions before using the tool.

Check

Match the character rules required by the service

Some services require symbols or numbers, while others reject certain symbols. Check the preset and character groups before generating passwords.

Check

Use enough length and avoid reuse

Reusing one password across services makes one leak affect other accounts. Generate a fresh password for each service.

Check

Store the generated password safely

Passwords are generated in the browser, but this page is not a storage location. After copying, save the password in a password manager or another safe place.

FAQ

Questions about Password Generator

Questions that make decisions easier before use are summarized first.

Are generated passwords sent anywhere?

No. Password generation and copying run in the browser, and the generated values are not sent to an external service.

Can I generate multiple passwords at once?

Yes. Set the count and the tool will generate several passwords in one batch.

Can I create passwords without symbols?

Yes. Use the alphanumeric preset or turn off the symbol toggle.

Can I exclude confusing characters?

Yes. You can exclude characters such as I, l, 1, O, and 0.

How is strength shown?

Strength is estimated from the password length and the size of the selected character pool, then shown as weak, standard, strong, or very strong.

Does the tool save my passwords?

No. The initial release focuses on generation and copying only, without history storage.

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