Why DataNumen Zip Repair?

#1 Recovery Rate

#1 Recovery

10+ Million Users

10+ Million

20+ Years of Experience

20+ Years of

100% Satisfaction Guarantee

100% Satisfaction

Recover Much More than Our Competitors

Comparison of major Zip recovery products in the market, including DataNumen Zip Repair, Zip Repair Pro, Recovery Toolbox for ZIP, Diskinternals Zip Repair, Object Fix Zip, etc.

Average Recovery Rate

Comparison Chart

Learn more about how DataNumen Zip Repair smokes the competition

Our Customers' Testimonials

Extremely Simple Interface

Free Download20+ Years Of Experience
Buy Now100% Satisfaction Guarantee

Main Features

  • Fix all sub-types of Zip files and all kinds of self-extracting files created by WinZip, WinRAR, 7-Zip, and other Zip apps.
  • Check data integrity and fix incorrect CRC values in the archive.
  • Repair Zip archive files and Zip item files larger than 4GB.
  • Repair spanned Zip files, split Zip files, and encrypted Zip files.
  • Extract files in the fixed Zip or SFX archive.

Free Download20+ Years Of Experience
Buy Now100% Satisfaction Guarantee

Using Our Zip Repair Tool to Recover Damaged Zip Archives

See Video Tutorial (Full Version)
See Video Tutorial (Demo Version)

Start DataNumen Zip Repair.

DataNumen Zip Repair

Note: Before recovering any damaged or corrupt zip files with DataNumen Zip Repair, please close any other applications that may modify the corrupt files.

Select the damaged or corrupt zip file to be repaired:

Select Source File

You can input the zip file name directly or click the Browse button to browse and select the file. You may also click the Find button to find the zip file to be repaired on the local computer.

By default, DataNumen Zip Repair will repair the zip file and extract all items in it to a directory called xxxx_recovered, where xxxx is the name of the source zip file. For example, for source zip file Damaged.zip, the default output directory will be Damaged_recovered. If you want to use another name, then please select or set it accordingly:

Select Output Directory

You can input the output directory name directly or click the Browse button to browse and select the output directory.

Click the Start Repair button, and our Zip file repair tool will start scanning and repairing the damaged zip file. The progress bar

Progress Bar

will indicate the data recovery progress.

After the repair process, if the source zip file can be repaired successfully, our tool will extract files in it and output them to the specified directory. And you will see a message box like this:

Success Message Box

 Now you can open the output directory and access the items in the Zip file.

More Information

Abount DataNumen Zip Repair

Version 3.7 (What's New)
Release Date: December 11th, 2022
Supported Languages: English, Spanish, French, German, Italian, Portuguese, Russian, Japanese, Korean, Simplified Chinese, and Turkish.


Operating System Windows 95, 98, ME, NT, 2000, XP, 2003, 2008, Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11, Windows 365, and Windows Server 2003/2008/2012/2016/2019/2022
Processor Intel or equivalent(x86, x64)
Memory 16 MB minimum (2 GB recommended)
Hard Disk 20MB free space

Which versions of Windows systems are supported?

Our repair software supports Windows 95/98/ME/NT/2000/XP/Vista/7/8/8.1/10 and Windows Server 2003/2008/2012/2016/2019. Both 32bit and 64bit are supported.

How does a Zip file get corrupted?

There are many reasons that will cause Zip file corruption, such as network issues, viruses, hard drive failures, etc.

When a Zip file is corrupt, you may get error messages such as  “Unexpected end of archive” or “Cannot open file: invalid archive” when opening it.

We recommend you to keep a Zip repair tool on hand so that whenever the corruption occurs, you can use it to repair the damaged Zip file and get your data back as soon as possible.

Are there free ways or freeware to repair corrupt Zip files?

Yes, many popular Zip tools, such as WinZip, WinRAR, and 7-Zip, support to repair corrupt Zip archives, as below:

1. Using WinZip to repair damaged Zip archives

WinZip is a trialware. During the evaluation period, you can use all functions in it. To repair corrupt Zip archives with WinZip:

  1. In the Start menu search box, input “Command Prompt”.
  2. In the search result, right-click “Command Prompt” and select Run as administrator.
  3. In the command prompt, input the following command and press Enter:“C:\Program Files\WinZip\wzzip” -yf xxx.zipwhere wzzip is the command-line version of WinZip, and xxx.zip is the full path to the damaged Zip archive.
  4. WinZip will repair the damaged Zip archive from the command line.

2. Using WinRAR to repair corrupt Zip files

WinRAR is also a trialware. During the evaluation period, you can use all functions in it. To repair damaged Zip files with WinRAR:

  1. Start WinRAR.
  2. Select the corrupt Zip archive file to be repaired.
  3. Click Tools > Repair archive.
  4. In the pop-up dialog box, select the folder to put the repaired archive and choose Treat the corrupt archive as ZIP.
  5. Click OK, WinRAR will repair the corrupt Zip archive.

3. Using 7-Zip to repair corrupt Zip archives

7-Zip is freeware. You can use all functions without any limitations. To repair corrupt Zip archives with 7-Zip:

  1. Start 7-Zip.
  2. Click File > Open to open the corrupt Zip archive.
  3. If 7-Zip can open the archive, then it has ignored the corruption in the Zip archive and extracted data inside it properly. You can extract items inside it as needed.

If WinZip, WinRAR, and 7-Zip fail to repair the corrupt file, then the file is badly damaged. You can use our Zip repair tool to repair it.

What is the CRC value in Zip files?

Cyclic redundancy check (CRC) is an algorithm that can be used to detect changes in data. In a Zip archive, when a file item is archived into it, other than the compressed file data, the CRC value of the uncompressed file data is also calculated and stored together. Thus when the file item is extracted, the unzip program should also calculate the CRC value of the uncompressed data and compare it with the stored one. If they are the same, then the file data should be intact. However, if they are different, then this is called a CRC error, which means the file data has been changed. So, we use the CRC value to check whether the file data in the archive are corrupt or not.

CRC value is very strict. So even if one byte of the file data is changed, the CRC value will be inconsistent with the original one. In such a case, many Zip apps will refuse to unzip the file data. But actually, most of the bytes are still OK. Our tool can recover these data from the archive, reduce the data losses.

Also sometimes, the file data are intact, but the CRC value itself is damaged. In such a case, when other Zip apps refuse to extract the file data, our repair software can also help you.

What are the advantages of your tool over other similar tools?

There are many similar repair software in the market, such as Diskinternals Zip Repair, Object Fix Zip, etc. We have made comprehensive tests on our Zip file repair tool and the main competitors in the market. Based on the test results, our tool has the best recovery rate and the most comprehensive features.

How does the demo version differ from the full version?

The demo version and the full version use the same recovery engine. However, after the recovery process, the demo version will show a list of recoverable items in the archive, including the file name, file size, and file type. But it will not output these items.

How long does it take to repair a Zip file?

It depends on many factors, including:

  1. Zip file size. It takes more time to repair a larger file.
  2. The number of items in the Zip file. It takes more time to repair a file with more items.
  3. The compression algorithm for each item. If an item uses an algorithm that provides a greater compression, then it takes more time to repair and extract it.

More Articles in Knowledgebase