17 Free Product Key Finder Tools for Your PC

If you are installing your Windows Operating System or any program all over again, you would need the product key for activation or the passwords for access. Not just the re-installation of the Windows, but you also require product keys and passwords for antivirus software, MS Office products, etc. without which your computer may not be working properly.

So what happens when you have lost the product keys or the passwords? You are either frantically looking for the original installation disc, the order confirmation email or the manual. Oh! Sometimes we even try looking for it in the Windows Registry, but not all of us are not technically sound, isn’t it? So, all of a sudden we are left in the lurch wondering how to recover the unique product key or the serial number to continue.

But, if you had one of the product key finder programs installed in your PC, you would not have to go through any hassle. It will first run a scan through your PC and find any of the product keys listed in the registry including the one for the Windows and the MS Office. You can then save it on the disc, or choose to take a print out. This way you can keep it within your reach and get hold of t easily whenever you need it next time.

Also see:How to view your Product key of your windows OS

While there are many product key finder programs online, luckily there are many that are free to use. We have worked hard to find the best free product key finder programs out of the pile and made a list only for you. So, take your pick and get back your product key for free!



With ProduKey you can instantly get the lost product keys and serial numbers for free. It is a safe and free tool to automatically show product keys from your PC.The program is straightforward and does exactly what you want it to. So, if you are stuck midway while reinstalling Windows OS and you are unable to trace your license keys, this is just the right software you need for immediate help. Not just for Windows, this free application can also find the lost product keys for Exchange Server, MS-Office and SQL Server that’s already installed on your PC.

What’s interesting is that while you can view the product key information for your current functional operating system, you can also view the details of other computers with the help of command-line options. Other advantages of ProduKey lies in the fact that it is a small application and is portable, hence can be used anywhere and does not need to be installed. Interface is pretty simple that helps find out the product keys from even offline and remote registries. While you can copy the results with out needing to export, you can also export them in HTML file format for backup.

Compatibility: Windows 98/Me/NT/2000/XP/2003/Vista/7/8/10

SterJo Key Finder


SterJo Key Finder is a free software that helps find your product keys for your Windows (old version of XP, Windows 7 & 8) and many other programs like, MS Office Products, AutoCAD, Coral Draw and more. You simply need to download the product, save it in a folder and run the scan from there. It runs a thorough scan of your PC, finds any or all license keys in the registry, and displays them in a list. The best part is that SterJo Key Finder gets installed easily without needing much resources. What we love about this program that it finds license keys for many different programs, and also tracks the product keys from a device that’s been dead for some-time. You simply need to place the hard disk of the dead device into the working device and run the software. It will find the license keys easily and save you from any future hassles.

Compatibility: Windows XP, Windows 2003, Windows Vista, Windows 7, Windows 8

Belarc Advisor

If you are looking for a powerful tool that can help you find your product keys in minutes, you can trust the Belarc Advisor eyes closed. It’s being used for years, and helps extract product keys for Windows and other programs also. The best part is that it is extremely precise in finding out the license keys or serial numbers for any of your installed applications. Including the Windows, it extracts information for CPU, network information, video card, motherboard, RAM, software update and software installation. What’s more, as Belarc Advisor is completely free, comes with no annoying adware or toolbars, and lists the results in your browser window.

Compatibility: Windows 10, Windows 8 & 8.1, Windows 7, Windows Vista, Windows Server 2012/2008/2003, Windows XP, Windows 2000, Windows NT, Windows ME, Windows 98, and Windows 95.

Free PC Audit 2.1

Want to extract all your PC information effortlessly? Get your hands on Free PC Audit which is a free software that recovers any license keys from your PC and other information like the installed software version. It’s a portable application and hence, does not need to be installed. Being portable it can be run from any other portable storage media devices like, flash card, CD-ROM drive, floppy disk, and USB flash drive.

It displays all the required information that includes PC hardware, running software or any installed program in minutes. While it is an easy to use simple application, it is also free of ads that make it a great option.

Compatibility: Windows 98/Me/NT/2000/XP/2003/Vista/Server 2008/7

Magical Jelly Bean Keyfinder

Magical Jelly Bean Keyfinder is one of the best product key finder programs in the category. It is a freeware that helps extract product keys not just from MS Office, but also from other programs installed on your PC. It barely takes any time to find the product keys and display the list. What we especially like about this program is its small size that hardly takes any space on your device, the swiftness with which it displays the product keys and the fact that it allows you to save several product keys.

Not only that you can change the Windows registration information easily using this software, but you can also find the license keys on other computers remotely with proper network access.

Compatibility: Windows XP/2003/Vista/7/8/10


Retrieve any of your lost product keys or serial numbers effortlessly using the free software, Winkeyfinder. It’s a compact program that helps you to track licesne keys used during the Windows OS installation. It helps you recover product keys for MS Windows 8, MS Windows 8.1, windows XP, win 2000, windows me, 98, 2003 and .NET. It pulls up the product keys from their registry and presents them to you on the screen.

It’s a portable software hence, requires no installation. Apart from being able to copy, save or print the license key for future use, you can also modify the local Windows registration information with just a single click. That’s not all as you can even modify the product keys for Windows and MS Office in some operating systems.

Compatibility: Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, Windows ME, and Windows 98

KeyFinder Thing

Although KeyFinder Thing is quite old-fashioned now compared to the others in the category, and pretty elementary, we still like that it’s simple, easy to use and a fully featured software. Best of all it’s available to download for free! What’s unique about this program is that it not only helps you to extract the product keys, but also helps you track serial numbers and look for anything else that you are not aware of in the entire registry.

KeyFinder Thing is compact software that gets downloaded in matter of seconds. It is used for multiple Windows OS and almost all MS Office versions. What’s interesting is, it also finds products for games and other applications. For safekeeping you can even export the tracked product keys for backup.

Compatibility: Windows 7, Windows Vista, Windows XP, Windows 2003 Server, Windows 2000, and Windows ME

Product Key Explorer

Find those lost passwords from over 8000 Windows OS softwares and programs and from several other operating systems for free using the Product Key Explorer. This free key finder application, helps retrieve MS Windows product keys from the installed software on your local and network computers effortlessly. Besides, if you’ve got a business you can also find the number of software licenses installed in it.

One of the easiest key finding programs in the category, Product Key Explorer lets you save the tracked product keys as Excel WorkBook, Access Database, Web Page, Tab Delimited Text File and more.

Compatibility: Windows 2000, Windows XP, Windows 2003, Windows Vista


Now do not be afraid reinstalling your Windows OS, as you can get back all your product keys and serial numbers easily, using LicenseCrawler. the serial numbers belong to programs like, MS Office, VMWare, Nero and many such applications. This software helps you do away with the tedious work of searching for the keys and the serial numbers in emails or manuals. LicenseCrawler scans the Windows Registry for the licenses, serial numbers and the Windows product keys swiftly.

It is also available in a portable version that can be run from anywhere using a USB stick. It even helps backup your system that is especially useful for people from IT and forensic services. So, no more asking clients of the license keys as you can simply run this free software to track the keys in no time. Best of all, LicenseCrawler is free of adware, viruses, Trojan spyware or backdoors keeping to 100% clean.

Compatibility: Win95, 2000, XP, 2003, Vista, 2008, Windows 7, Windows 8, Windows 8.1, Server 2008 R2 64Bit, Server 2012

Recover Keys

Recover Keys is a simple application that helps you to track product keys for Windows, Microsoft Office and over 8000 other installed programs. Even though it’s an extremely basic key finder software, it is a complete Windows application that safeguards the license keys for already installed software programs on your network or local PC when there’s a system hard disk crash.

It’s a compact program that fits into your PC quite comfortably, and recovers keys for product like, antivirus, Adobe Photoshop, and other popular applications including Windows and MS Office. Once recovered, you can then save, backup, print or even export the product keys in Word, Excel, HTML, XML, CSV or in PDF format. Whether you are a professional or a beginner Recover Keys is just for you.

Compatibility: Windows NT / 2000 / XP / Vista / 7 / 8 / 8.1 / 10, Windows Server 2003 / 2008 / 2012, Mac OSX 10.4 Tiger – 10.10 Yosemite

Product Key Finder

Well, don’t get confused as the name of the program is indeed Product Key Finder. Although it’s a very simple application it functions really well. It features only three buttons and keeps you away from any complications. Once it’s run, it scans the system and finds product keys and serial numbers effectively and shows the information in a window.

Along with Microsoft and Adobe programs, it also finds license keys for over 200 other programs. With only three buttons to access, it offers the easiest interface to handle. It’s compact so fits in your computer perfectly. What we like is that the keys are well formatted, displays results instantly, enables you to save the results in a CSV file, barely takes time to get installed and easily loads registry details from a backup.

Compatibility: Windows 7, Windows Vista, Windows Server 2008 & 2003, Windows XP, Windows 2000, Windows 98, and Windows NT.

MSKeyViewer Plus 2.2.0

If you are looking for a utility that does not take much of your computer’s space, and finds out the product keys, installation keys, installed software versions and the service pack levels in no time, you can definitely seek help from the MSKeyViewer Plus 2.2.0, which is also compatible with licensed applications. If you are running Windows OS or Office 97 to 201 it can be especially useful to them and for others too. It does not need to be installed and hence, can be run from anywhere on the hard drive. Being a portable software it can also be run from a USB flash drive or any other removable media storage device.

Once the program is removed there are no traces in the Windows Registry. The interface is simple yet modern in looks with nicely arranged layout. Any of the installed software in your PC is automatically detected by this free software and displays the product keys and other information in minutes. With a good response time and a small size, MSKeyViewer is definitely a worth try. Best of all it copies your product keys into the Clipboard with a single click to be easily saved into other documents.

Compatibility: All Windows versions

Mac Product Key Finder

As the name suggests, Mac Product Key Finder is a freeware designed to recover lost license keys or help backup the keys before they are the already installed software for your Mac PC. Not only that this application is pretty small taking up only a miniscule space of your computer, it also effectively scans your PC for any installed software and displays the product keys or serial numbers instantly. Once it pulls up all the keys , you can then save it as an HTML, PDF, text, CSV or XML file or get a print out of the same.

From MS Office 2008, Adobe Photoshop to Parallel’s Desktop it supports limited software for the moment.

Compatibility: Mac OS X 10.4 Intel/PPC, Mac OS X 10.5 Intel/PPC, Mac OS X 10.6/10.7/10.8

APKF Product Key Finder

APKF Product Key Finder or Adobe Product Key Finder is a free tool that helps you to track any missing product keys or serial numbers for nearly any products offered by Adobe like, Photoshop, Creative Suite CS6, CS5, Cs4, Cs3, Acrobat Reader, Flash and more. Not just that, using this utility you can also retrieve product keys from the cache file found in the external hard drive.

This key finder tool detects your system of any installed Adobe software and therefore, find Adobe serial numbers for the same. You can even backup the product keys, get a print out or simply save them to a file. The backup files (Adobe serial numbers) can also be saved as XML Data, Tab Delimited TXT File, Access Database, CSV comma Delimited and in more such formats.

Compatibility: Windows XP/2003/Vista/Server 2008/7/8/10

Windows Product Key Finder Pro

Wish to reinstall Windows, but unable to do so because of the lost product keys? Windows Product Key Finder Pro is your answer. This super easy tool helps you to extract the product keys and serial numbers for Windows or MS Office instantly. What we love is its simplicity and the straightforward interface that features no menu options that can confuse you with your search.

Some of the advantages of Windows Product Key Finder Pro lays in its compact size, instant display of the serial numbers, facility to save or get a print out of the product keys, copying the license keys to the clipboard and the fact that is portable, and hence does not need to be installed.

Compatibility: Windows 8, Windows 7, Vista, XP, 2000, 2003, 2008. Office 2013, 2010, 2007, 2003, XP.

Office Product Key Finder

Office Product Key Finder as it’s named, helps you retrieve serial numbers and product keys of MS Office only. You can easily recover serial numbers for MS Office 2003, 2007, 2010 that’s already installed on your PC. This free software helps find product keys from local or network computers that helps protect your business from pirated software. Additionally, t allows you to back up the recovered product keys to Registry File and save them in Web Page, Excel Workbook, Tab Delimited Txt File, CSV Comma Delimited, Access Database and more.

Best part about Office Product Key Finder is that it can scan unlimited business computers, and is one of the easy to navigate tools in the market.

Compatibility: Windows XP/2003/Vista/Server 2008/7/8/10


WinGuggle does exactly what you want, that is, it helps you to find product keys and serial numbers of installed programs on your PC in no time. This freeware works great for those who are looking for the license keys for Windows or MS Office Products. It comes in a small package that hardly takes space of your computer’s hard disk. Above all, there is no need to install the software as you can start using it by simply unzipping.

Once it’s done scanning the registry, it instantly displays your Windows and Office serial numbers. Additionally, not only does it help you copy the serial number so that you can paste it in the backup file, but the striking part is it also lets you view and modify OEM information which is available in premium programs. Also, there is no ant-virus warning message displayed when the programs is started, so fid your product keys without any hassle.

Compatibility: Windows 7, Windows Vista, and Windows XP

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