Use reputable tools like PassFab , Hashcat (free/open-source), or John the Ripper .

: If you downloaded the file, check the website where you found it. Many sites use their domain name (e.g., ://websitename.com ) as the password.

: The software tries every possible combination. This can take days or years depending on the password's complexity.

If you’ve legitimately lost a password to your own RAR archive, I can instead offer a write-up on , such as: