LOCAL SECURITY CONVERTER / ARCHIVE PASSWORD GENERATOR

Archive Password Generator

Generate a strong random password locally for a ZIP, 7Z, or other archive using browser cryptographic randomness and explicit character rules.

Processed in this browserGenerate 12 to 64 characters from at least one enabled group. The result exists only in this page and is not saved, uploaded, recoverable, or automatically applied to an archive.

Step 1 / rules

Set the password rules

Choose length and character groups. The generator guarantees at least one character from every included group, then securely shuffles the complete result.

Password lengthChoose a whole number from 12 to 64. Longer values increase the search space.Lowercase lettersInclude or exclude a-z. At least one character group must remain enabled.Uppercase lettersInclude or exclude A-Z. Included groups are guaranteed to appear.DigitsInclude or exclude 0-9. Ambiguous mode can remove 0 and 1.SymbolsInclude common archive-safe punctuation to expand the search space.Ambiguous charactersExclude I, l, 1, O, 0, and o when the password may be read or typed manually.

Step 2 / generateCreates a separately named result and never writes into the source file.

The generated value stays on this page until you reset, refresh, or close it.

No file upload

No file is selected and no API request carries the generated value. The password exists only in this browser page until reset, refresh, or close.

Original stays unchanged

The converter creates a separately named output. It never writes back into the source file.

Bounded work

Generate 12 to 64 characters from at least one enabled group. The result exists only in this page and is not saved, uploaded, recoverable, or automatically applied to an archive.

Plain-language method

How Archive Password Generator works

The browser builds the chosen character pool, uses rejection-sampled crypto.getRandomValues indexes to avoid modulo bias, guarantees every enabled group is represented, securely shuffles the characters, and reports an approximate search-space size.

01
Set the generation rules
No file or personal information is needed. Configure rules that the destination archive application accepts.
02
Review the conversion choices
Twenty or more characters with lowercase, uppercase, digits, and symbols is a strong general default. Excluding ambiguous characters helps when a password must be typed manually.
03
Inspect the separate result
Copy the password into your archive application and store it in a trusted password manager before closing this page. The TXT download is convenient but should be protected or deleted securely after storage.

Useful when

Practical jobs this tool handles

Protect a new ZIP or 7Z with a unique password.
Avoid reusing an account password for an archive.
Create a typeable password without ambiguous characters.

Before converting

Check the source and destination rules

Confirm the archive software accepts the selected symbols.
Store the password before leaving the page.
Share the archive and password through separate trusted channels.

Know the boundary

Know what the destination format cannot keep

Nirmion cannot recover this value after reset or refresh. Password strength also depends on archive encryption, software settings, secure storage, and how the password is shared.

Quick answers

Questions before you convert

The conversion contract is deliberately explicit.

Is the password sent anywhere?

No. Generation uses Web Crypto in this browser and does not call the Flask API.

What does estimated bits mean?

It approximates the size of the selected character search space; it is not a guarantee against weak archive encryption or password exposure.

Does this encrypt my archive?

No. Apply the generated password in trusted archive software that supports authenticated modern encryption.