← All articles · 10 November 2026

How to use Know the ZIP, 7Z or RAR Password — practical guide

The service takes an encrypted ZIP, 7Z, or RAR file and the password you know. It decrypts the contents and repackages them into a new, unencrypted ZIP archive for you to…

How to use Know the ZIP, 7Z or RAR Password — practical guide
Photo: Jeff White Custom Jewelry (Unsplash).jpg · CC0 · Wikimedia Commons · Context illustration: FILE-O
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The service takes an encrypted ZIP, 7Z, or RAR file and the password you know. It decrypts the contents and repackages them into a new, unencrypted ZIP archive for you to download. The original compression and internal folder structure are preserved.

When this is useful

You regularly receive RAR reports from accounting locked with the same key. To avoid entering the password each time, you can convert them once into open ZIPs for quick access. Or you created a 7Z archive with a long password for sending, but now want a local copy without encryption since the folder access is already restricted.

Step-by-step instructions

  1. On the tool page, click the file selection button and upload your encrypted archive.
  2. Type the valid password exactly, respecting case and special characters, into the text field.
  3. Start the processing and wait for it to finish.
  4. When the service provides the result, download the new ZIP file, ready to use without a password.

How to verify the result

If the service reports an error, check if Caps Lock is accidentally on or if an extra space was inserted at the beginning or end of the password. Ensure the uploaded file is genuinely an archive of a supported format, not just a renamed document. Try opening the source archive in a desktop archiver with the same password to confirm it works.

Important limitations

The tool does not attempt to guess or crack the password; it only uses the combination you provide for decryption. Not all legacy or proprietary RAR format variations are supported, especially those created by very old WinRAR versions. The final file will always be a ZIP, regardless of the archive type you initially uploaded.

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