WindowTop Activation Key


The activation key will automatically be sent to your email address after the purchase.

If you’re not receiving the email, please check your spam folder to be sure that our emails are not being detected as spam.
In the unlikely event that the email is not there, contact us, and we will manually send you the activation key.

The activation license key should be used per user and limited to 3 computers.

You may want to contact us to discuss the pricing and a potential discount if you are an organization.

Important: If the key is not working, please make sure you update to the latest version!


By proceeding, you agree to the following:

  • No liability for any damage.
  • We will send you the Key to your email linked to your PayPal account.
  • We can’t guarantee that the order information will be kept forever, so it is also your responsibility not to lose the activation key. Otherwise, we may not be able to send you the key/new key.

Other options to purchase

To purchase from Microsoft Store, you will need to download and install WindowTop from the store. After that, to buy the app, right-click on the WindowTop icon at the tray menu -> All Settings -> License page.

There you will have the option to purchase the app via Microsoft Store.

Click on the following button to install the app via Microsoft Store

HTML tutorial

Other Stores

You can purchase from one of these stores if you are from China

(Purchasing directly from here is not possible because PayPal is blocked in China)


Few notes before you buy

  • You can purchase an activation key and use it to activate the Microsoft Store version. If you install the app via Microsoft Store, you will see two options to unlock the pro version: By purchasing via Microsoft store and by entering the activation key.
  • If you purchase via Microsoft Store, you can unlock only the Microsoft Store version because the activation is linked to your Microsoft account (unlike the product key), and the regular version can't access such activation.
  • Both versions - the Microsoft Store and the Desktop/Portable - are identical in functionality.

Feel free to purchase from where you want. However, buying from Microsoft Store is recommended if you don't trust other payment methods.

WindowTop is FREE, However, you will not get the best from the free version!

The paid version includes what we call “Pro Features” which will be released over time to people who have the paid version. WindowTop PRO is being purchased by hundreds of people for its advanced Features:

Fast method to pick windows (Faster than ALT+TAB), using Anchors - (NEW from v5.4.0, see video below)
PiP (Picture in Picture) – see example down below
PiP (Picture in Picture) - Control the window while it is in PIP mode (NEW from v5.2.0, see video below)
PiP (Picture in Picture) - Crop a window directly without putting it in PiP first (NEW from v5.22.0, see video below)
PiP (Picture in Picture) - Automatically move the PIP window to areas without text or image (NEW from v5.4.0, see video below)
PiP (Picture in Picture) - Select a crop region (NEW from v5.20.0, see video below)
Save window configuration, so no need for example to set window on top manually each time
A better dark mode – see example below
Add window to blacklist/whitelist
Eligibility to commercial environment (unlike the free edition)
Ultimate support

What’s included in the paid version?

Picture-in-Picture + Interact (mouse & keyboard control) + Mouse cursor clone & preview + CROP with combination of Anchors

The following new video from 5.22 shows in 3 minutes the ultimate potential of WindowTop power, utilizing the best-of-the-kind Picture-in-Picture feature out there (no app, even not by Microsoft, is capable of doing it). 

The video shows the following functions of WindowTop's PiP and Anchors feature:

  • Interact with the window from the PiP view, including the mouse cursor preview 
  • Crop the window directly or from the PiP view
  • Modify the crop state directly or from the PiP view
  • Integration with Anchors by showing the PiP state on the anchor (crop icon or pip icon)
  • Integration with the rest of the features (Always-on-Top, Opacity & click-through)

Example of controlling a window via PIP mode. You can even see your mouse cursor in a larger preview!

PiP Interact with mouse preview clone

You can even interact with the window while it is in PiP mode!

And it even have option to automatically move the PiPs away form texts / images!

Easily pick / come back to any window in single click using Anchors

The anchors will automatically move away from texts or images! The bigger the anchor is, the more recent the window used

Dark Mode for any window

Please note that this feature's stability may vary based on your computer's hardware. It is possible that it may be less stable on Windows 10 and work better on Windows 11. Anyway, we advise you to ensure that the feature functions correctly before purchasing, especially if this is the reason for your purchase.

Enable dark mode for any window, even when the program doesn't have a dark mode.
In the Pro version, the option to exclude images (the "Filter Images") is unlocked, so you can
A proper dark mode, even with content with images!

Take the Opacity to the next level with the Glass feature!

Please note that this feature's stability may vary based on your computer's hardware. It is possible that it may be less stable on Windows 10 and work better on Windows 11. Anyway, we advise you to ensure that the feature functions correctly before purchasing, especially if this is the reason for your purchase.

Smart transparency mode enables you to take opacity to the next level! Unlike regular transparency, you can set different opacity levels for the background around the text/controls and the images.
And you can even set the blur level.
Note that this may work slowly on 4K and will work better for NVIDIA GPUs (make use of CUDA feature)
It should work better for apps that usually not showing images.
It is recommended to enable the native dark mode (not the dark mode by WindowTop) before enabling glass mode for the best quality.
Some apps like Word have dark mode natively, so enabling this glass feature will do the best job if the window is already in dark theme natively, and it will also improve the rendering speed.

Unlock more toolbar themes

Blacklist/whitelist specific programs so WindowTop will be disabled/enabled when these programs used
No need to manually enable every time some feature to the selected window. For example, you can set window on top one time and then WindowTop will automatically set it on top for you when you open the window again

Customers Revies (from Microsoft Store)

Random 10 Microsoft Store reviews

that is very useful and fine
thanks a lot and best regards

Works nice, I didn't believe it until I tried this
(I put my main use cases at the end) This app has everything I dreamed of and the shortcuts make it easy to use. I thought something like this would slow down the computer but it has not. It also has some features I didn't dream of but could be useful sometimes. I'm using it on a laptop but if someone has one huge monitor that you work on then it becomes even more important to use this. The next 3 use cases are completely worth it (4th is extra): -> most useful thing is basically to have a YouTube video with some background something on at the side honestly. ->Also, using the transparency feature to seamlessly multitask while on a zoom call. ->Also pinning and transparency to a group chat while on a zoom call, so you can still see everyone not shrunken up and also the chat. ->pinning a notepad sometimes with your todo list at the side of the screen, a little transparent as well.

Perfect for what I need
I use this app mostly to put videos in PiP over games, and it works like a charm. Especially the transparency and click-through options.

I'm happy.
Works well, but I wish "click through" had a shortcut key, and for some reason I can't turn off the "remember this window" feature. finally, doesn't work with Dishonored. only game I had it fail so far when trying to have another window lay over top of that game in Fullscreen mode.

Great multipurpose app for a variety of projects.
I originally installed WindowTop to use overlay a ruler for a game I really liked to play that required it, but didn't have one implemented. After awhile my use of the app evolved to using the "Set Top" and "Opacity" features for timers, watching videos, drawing art, editing/working on spreadsheets, etc. It really helps me maximize the space and potential of my two monitors for whatever I'm doing.

Great app
Love the app and its features.

Dedicated developer
Talented, too

Must have app!
I've been playing with this all day and it's so much more than I was looking for and I'm glad I found it. I'm buying it to support the genius developer. Way worth the price! PowerToys is getting uninstalled, this is much better use of my system resources. Keep up the good work Einstein! Thanks for your gift to Windows users.

Great tool!
I wish Windows had this as core feature. I am glad WindowTop exists! Works really well!

seems to be a pretty useful app
doesn't seem to be a virus seems to be very useful for me

Click here to see more than 200 reviews on Microsoft Store

Detailed Pricing Table


Functionality / Plan

Set window on top

Set window opacity

Click through transparent window

HotKeys for set-top, dark, shrink)

Set window dark

Shrink window

Disable set-top for a maximized window

Mark top-most windows with

red border

Picture in Picture (PIP) mode

for the shrink feature

Resize shrunk window

Smart dark mode

Save window configuration

Exclude window

Support the developer

Suitable for company usage



Limited support + No extra features + No supporting the developer


Only $9.99 - 14.99$

Extra Features + Support + Support the developer 🙂

74 thoughts on “WindowTop Activation Key

    • No,
      It is very hard to develop it so it can’t be free.
      Actually there is even a chance that the price will be higher in the future. 
      5.99$ is low price 🙂

      But you always can use the limited version if you want.

    • Follow these steps:
      1. Right-click on WIndowTop tray icon
      2. Go to “WindowTop Pro” -> Click on the first item
      3. A new window should open. Click on the button “Activate / Buy now”
      4. A small window should open. In this window, you can paste the activation key.
      Paste the activation key and then click on “Activate now”

      At this point, if the key is valid, the program should be activated.


  1. do you plan a tray minimizer function ? if yes, I’ll take without hesitation, I’d like the 2 functions always on top or tray minimizer in the same software

  2. Hello, as you said, the activation license key can be used for up to 3 computers. I’d like to know whether the license can be transferred between devices? I usually work in a VM, and I don’t want to buy a license every time I destroy the VM.

    • Hello, if you use the portable version (not the version you install) you should be safe.
      But please note that in the portable version some of the pro functionality is disabled and it is: dark mode pro and smart transparency
      Other pro functionalities such as the How to watch videos while working (PIP Mode) will be available also in the portable version.

      We plan to add option to remove computers from the activation key so you will able to use it as solution for the installed version.
      For now, if you don’t need the pro functionality that disabled in the portable version, the good option is to use the portable version.

    • Hello,

      1. if you lose your license email, contact us on and if we have a record of your purchase, we will send you the activation key.
      But it is highly recommended to backup the license key for your computer.

      2. We should provide option to remove computer from the license key. For now, there is no such option yet.
      If you want to transfer the license key to another computer, contact us about your request and we will do it for you.

  3. WindowTop is so useful, I use it for SO many things while I’m working.
    I LOVE IT. It’s probably one of my two favorite computer things (the other one is a foot switch/pedal, which means I can make things happen on my computer just by pressing one of the three pedals at my feet).

  4. Does the PRO Version make it possible to define any window of the same program to have sticky settings? Specifically I would like any explorer-window to have alphatransparency…

  5. Moisés Fernández Ballantyne

    I really loved this software. I came across with it because I was trying to solve some issues while streaming on Twitch. I wanted to have my real chat on top of the game, but also, being able to modify transparency and size.

    One thing I’m not sure if its possible: Can you capture an specific part of one window? For example: I would like to capture only the “chat” box of an entire website I’m navigating. It would be interesting if you can “Crop” your selection and then shrink it as a pop up window. Is this possible or it’s not a function implemented on the PRO version?

    Once again, thanks a lot for this amazing software 🙂

  6. Hi, this product is very helpful and is exactly what I was looking for. There is one problem though, when I click the green arrow, no menu comes down. I’m not sure if this is a general problem or a problem on my end. Hoping you could help out, thanks!

    • Yes, it is a bug.
      It was never implemented that way that clicking on it opening the toolbar.
      But it should do it if you click on it.
      So need to fix it.

      Thanks for the report

    • Great!
      The UI is already upgraded from v4.
      What do you expect exactly?
      Can I ask what is the most useful feature for you that helps your productivity?

      Thanks for your feedback!

  7. hello, i just upgraded to the paid version. how can I use the smart dark mode. or, how can i check if i’m using it?

    thank you so much in advance

    • Hello, you first need to enable the button in the toolbar.
      To do it, right-click on the WIndowTop icon in the tray and then Settings–>All Settings.
      In the window that opened, select the toolbar icon.
      There you will see a list of buttons that you can enable/disable.
      Find the “Dark-Dark” option and enable it.
      Now you should have the button enabled.

      Open the toolbar on some windows and you will see the new button.
      When you click on the button, dark mode will be activated.
      You will also see the option “Filter Images”. This option is unchecked by default and will work only on premium mode.
      To enable the “Smart dark mode”, just click on this option.

      If you have more questions/issues, feel free to ask.

  8. Is there a difference in how you get updates for the MS Store vs Desktop versions?
    Do both get updates at the same time?
    Thank you!

    • The desktop version gets updates faster because there is no need to wait for Microsoft to approve each time a new update is released.
      But the downside is that there is no automatic/self-update functionality and you will have to reinstall the last version yourself.

      This is unlike the store version… The store version comes with automatic updates and self-updates – You install it once, and it will update itself later when there is a new update.

  9. Hello there, just purchased the pro version and already looking how useful this gem is. How about opacity controlled by the scroll wheel ? also save window configuration for top window is very useful, but in my humble opinion it would be even more useful if it could also save the exact position of the window on the screen when it was closed, how about that? Finally, how about if I set top two applications (browser and outlook for example), could you make it so that IF they intervene with each other they must move/resize themselves on the screen so that they are both set top and revealing all their content ?

  10. Just purchased after using Free Version from MS store.

    How do I apply the activation key – there are no “install sequence windows” when I run via the desktop icon.

    • Hello, sorry about the issue. Please uninstall the Microsoft store version and reinstall it again. After that, the app should be activated using your Microsoft account. The activation is not by a key, it is handled by the Microsoft store because you purchased it from their store.

      If you still have any issues, feel free to contact me again.

      • Thanks for reply – have just uninstalled MS free Windowtop and from MS store downloaded again – this was unsuccessful – Error from MS “Something happened on our end”

        Note MS said I owned this app (I never paid MS for this app, i could not pay MS despite setting up PayPal account, the app could not even be added to cart — so I PayPal bought from you (i.e. NOT MS store)

        So, MS did not download my free app yet even though I uninstalled before download attempt, the app shows up in recently installed in start menu – but this app now does not work.

        I think i have a problem with MS Store – it says I own the (free) app, it would not let me pay MS store (hence I paid you by PayPal and you gave me a key which I cannot apply) and MS does not know that I bought the app (but not from MS)

      • Hello – uninstalled again and now installed from setup.exe from (???) GitHub (or something)

        The installation showed various windows, e.g. where to install etc, and it appears to function (i.e can see three options eg size down) – HOWEVER for some reason the program “remembered” that with the first time with free app usage I allowed the options to appear when hovering over the minimize button – so the uninstall never fully uninstalled “everything” – also with this reinstall I never saw the many pages of help (which for instance told me about using minimize for options) – THE VERY FIRST TIME with MS free app I saw all of this – (but had not purchased yet at that time) – so maybe uninstall is not perfect (for what ever reason) – so how for me to “clean up” after uninstall for “residual stuff for WindowsTop” – AND THEN DO A FRESH CLEAN INSTALL?

  11. Okay, so you showed a “Free” and limited version and a “Free trial”. But how can I access at least one of these, when your app only show me three choices : Purchase on MicrosoftStore, purchase a key, or activate a key? Where have you hidden the “free” option you actually showed us, to at least have a try?

    • It is a free trial for 30 days; after 30 days, it is still accessible but with limited functionality.
      When you install the app for the first time, it starts the free trial automatically. You don’t need to start the trial mode yourself. It should already start after you install it.

  12. Hello. Do you no longer offer a 30-day free trial of the pro version? I tried both the MS store version and the one downloadable from this site but upon first-time opening of either one, I’m slapped with a free trial has expired message. I swear I have never downloaded, tried nor used this software/app until today. Seeking clarification. If it’s truly the case that the free trial isn’t offered anymore, I suggest you update all relevant pages and descriptions immediately to avoid misleading people. This is very off-putting!

    • Hello, if your statement is true, it is a bug.
      The trial check implementation uses a unique computer ID (based on your hardware).
      Even if you purchase the computer from someone else and do a complete Windows reinstall, the computer ID is the same.
      So, if someone else used the app, it will still count.
      This is usually not reported, but it is still wrong behavior.
      I will work on a solution for this problem.

      Can you please change your rating? I will try to fix the bug ASAP. If you want me to reset the trial, contact me via email.

  13. If I upgrade or format my computer, will it be considered as an additional computer under the license? Also, are the three computers tied permanently to the license, or can I swap between which three computers are covered at any time? Thanks.

    • Hello, no. However, after you update the BIOS or hardware, the app may think it is a different computer.
      In the worst-case scenario, you have an option via the program to reset the activation key usage so that you will continue to be able to use the license. In this scenario, the program will ask you to do it, so you will not even need to go to the license settings yourself.
      In any case, you can always contact support, and I will help you with license issues.

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