– While primarily a system information tool, Belarc generates a detailed profile of your computer including software license keys. The personal version is free for home use.

: You can upload your file to the official site for free. If the service is capable of decrypting your file, it will show you the first paragraph of the document as proof of success before you buy a license.

What is the you are trying to unlock? (e.g., .docx , .xlsx , .pdf )