Without password, to open a password protected ZIP file, certainly you need some really effective ZIP password-cracking software. Now there are two such software you can choose from to open a password protected file. One is iSumsoft ZIP Password Refixer that can recover unknown password from encrypted ZIP archive file. Another is NSIS that can remove ZIP password.

How to open password protected zip file without password?

 

  • Method 1: Recover ZIP Password with iSumsoft ZIP Password Refixer
  • Method 2: Remove ZIP password with NSIS

Method 1: Open password protected ZIP file by recovering password

iSumsoft ZIP Password Refixer is powerful ZIP password software that helps recover unknown password from encrypted ZIP archive file in the short possible time. Then you can open your password protected ZIP file with the recovered password.

Step 1: Recover unknown password from password protected zip file

1. Download and install ZIP Password Refixer on your computer. Then launch this program.
2. Click Open button. Browse for the password protected zip file and add it into this program.
3. Select password attack type.
select password attack type
Selecting one right password attack type is the trick of quickly recovering zip password. This program provides 4 attack types including Brute-force, Mask, Dictionary and Smart. And the most commonly used and most effective attack should be the Brute-force with Mask and Dictionary.
Learn more about password recovery with Mask and Dictionary attack.
4. Click Start button. And just wait a little longer while the program is discovering the zip password.

Step 2: Open password protected zip file with the password

When the zip password is found and showed in the dialog box, write it down. Then open your password protected zip file with the password. Or you can click the Copy button and then paste the password to open your protected zip file.
Open password protected zip file with the password
Tips: In order that you can open the password protected zip file without entering password later on, you are recommended to firstly extract the zip and then compress to a new zip by not setting password. So the zip file is not protected and you can directly open it without password.

Method 2: Open password protected ZIP file with NSIS

NSIS is magic software that can convert a password protected ZIP file into an exe file. Install the .exe file so that it can turn into your ZIP file and you can open it without password.
Step 1: Download NSIS and install it on your computer. Then run it.
Step 2: Click the Installer based on ZIP file.
Click the Installer based on ZIP file
Step 3: Click the Open button. Navigate to the path to your password protected ZIP file and add it to NSISsoftware.
Click Open
Step 4: Click the Browse button and select one path to locate the EXE file it will generate. And then click theGenerate button.
Select Output path
Step 5: When the generation is complete, close the dialog and you can see an EXE file just like the one below.
EXE file
Step 6: Double click the EXE file to install it. When the installation is complete, it extracts your password protected ZIP file. And you can open it without password.

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