Could someone suggest the best 7z password recovery software for Windows?

Hashcat is an open-source tool and one of the most powerful 7z password recovery software. It leverages GPU parallel computing technology to significantly increase password cracking speed compared to programs that rely solely on the CPU, and efficiently unlocks encrypted 7z archives through hash extraction and multi-mode cracking capabilities.

How to Use 7z Password Recovery Software

Step 1: Extract the password hash from an encrypted 7z archive

You will need the 7z2john utility, which is included in the John the Ripper toolkit.

Open a command prompt, navigate to the John the Ripper working directory, and run the following command:

7z2john.exe yourfile.7z > hash.txt

Step 2: Launch the software to crack the extracted hash values

1. Dictionary attack:

hashcat -m 11600 -a 0 hash.txt rockyou.txt

The -m 11600 parameter specifies the hash mode for 7-Zip AES-256 encryption.

2. Mask attack:

hashcat -m 11600 -a 3 hash.txt 'Cat?d?d?d?d'

Used to test passwords in the format Cat followed by four random digits.

3. Full brute-force attack:

hashcat -m 11600 -a 3 hash.txt ?a?a?a?a?a?a?a?a

This command generates all possible 8-character password combinations.

Step 3: Wait for the decryption to complete

Once the software successfully recovers the save file password, it will display the matching plaintext password directly in the terminal.

This GPU-accelerated toolkit supports multiple modes for cracking encrypted 7z files and is ideal for tech-savvy users with a dedicated graphics card who need to unlock password-protected 7z archives.

Pros

• Open source, with no password length restrictions.
• GPU parallel computing makes cracking hundreds of times faster than tools that rely solely on the CPU.
• Supports the three mainstream cracking strategies—dictionary attacks, mask attacks, and brute-force attacks—offering flexible usage.

Cons

• Requires a dedicated NVIDIA/AMD GPU with compatible drivers; integrated graphics cards perform extremely poorly.
• Operates entirely via the command line with no graphical interface, making it unfriendly to beginners.
• For long, complex passwords containing random characters, a full brute-force attack takes an extremely long time.