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icon MultiHash

MultiHash screenshotClick to enlarge.

Download ArrowDownload MultiHash now and build MD5 hashes on files, directories, and full drives for free! Registration is required for commercial use, but you are able to test all of its features with the free download. here is a zip file you can try instead if you have problems getting the install page to work for you because of download filters blocking .exe files.

Register NowBuy it now! All major credit cards accepted. A registration code will be delivered immediately via email, and will enable full commercial functionality.

The latest additions are drag and drop from Windows Explorer, and the addition of SHA1, SHA256 and SHA512 hashes in addition to the original MD5.

This software came about as a late night challenge. I was on site in Morocco with a gentleman from France who worked for a software escrow company. I was the one providing the files to be put into escrow. He verifies his escrow candidates by generating MD5 hashes.

While his software was running to build an MD5 hash of a multi-gigabyte zip file on a USB thumb drive, I wrote and tested a quick application to do the same test using .NET and C#. He told me about some of the shortcomings and desired features of his current tool set, so voila! New tool.

To show how it can work, my installer .exe for version has an MD5 hash of:


If you already had an earlier version installed, you could check the hash to make sure your value matched my published value. That guarantees that what I tested and what you are installing are the same.


This is a fresh newly released product. It has been through a few rounds of private beta testing to work out some kinks so you can put it right to use without worries.

Technical Requirements

MultiHash requires .NET 4.5 to be installed, but the installation process will take care of installing it if you need it.

Wish List

Let me know if you have any ideas for me on what to add in. One possibility is the idea of adding additional hash types.


PingGraph chart
PingGraph is a network monitoring tool that graphically shows you ping times and  bandwidth over time on a list of computer connections.

MultiHash screenshot

MultiHash builds MD5 hashes for individual files, sets of files, entire directory trees, and entire drives.

GPSMoniter screenshot

GPSMonitor shows you the information from a GPS attached to your laptop, using human-readable format with graphs, tables and maps.

Consulting and Development
Consulting screenshot

Consulting services are available for reasonable rates for a range of application design and development.