To remove the license key:

  1. Find the IntelliJ configuration directory
  2. Find the .key license file
  3. Remove or rename the .key license file

In my case on a Windows 7 machine I could find this license key in C:\Users\you\.IntelliJIdea13\config\idea13.key

Answer from Jan H on Stack Overflow
🌐
JetBrains
jetbrains.com › idea › buy
Buy IntelliJ IDEA
June 1, 2021 - Buy IntelliJ IDEA and take your professional Java and Kotlin development experience to the next level!
🌐
JetBrains
jetbrains.com › help › idea › register.html
Register IntelliJ IDEA | IntelliJ IDEA Documentation
3 weeks ago - Log in to your JetBrains Account and get licenses that you have purchased. If you don't have a JetBrains Account yet, click Register. IntelliJ IDEA automatically shows the list of your licenses and their details like expiration date and identifier.
Discussions

How do I remove my IntelliJ license in 2019.3? - Stack Overflow
> Remove License, and that removes for all Jetbrains products*. If you open products like IntelliJ IDEA and have projects currently active (like the app open automatically the all IDE without prompt), then click on File > Close Project, and follow the first step. More on stackoverflow.com
🌐 stackoverflow.com
has anyone had success licensing an idea?
I have. I can tell you that the path you are taking is more closely representing a venture than a licensing deal. In short, you are way over doing it. Doing things that aren't critical to the process. Which is doing nothing but diminishing the value you could potentially get out of it. The basic process for licensing is to create a sell sheet. On that sell sheet you put some sort of depiction of the invention. Which can be a picture of a prototype, 3D model or hand drawing illustration. The general rule of thumb is to use the bare minimum you need to get the point across (The Lean Startup). On the sell sheet, you also need to make the case of what is in it for them. Then, you build as large of list as you can of potential companies to license too, and their contact info. Then when done with that, do it again and make the list longer. You are going to get a lot of "no". It's a numbers game. Then, consider if you need a provisional patent or not. It depends on the situation. But filing one is pretty cheap. You have one year from filing, which is why you need that big list before hand. You don't want to waste that year building lists. Then reach out. There is a really good YouTube series by InventRightTV that has a ton of content. More on reddit.com
🌐 r/inventors
22
7
October 23, 2022
Drunk Driving License Plates, Best Idea Ever
What if the car is shared with other family members who don't have DUIs? Doesn't this foster discrimination against innocent people? More on reddit.com
🌐 r/AskReddit
181
24
April 23, 2010
Is it a good idea to use my university's license to host a private party?

The content of your meeting should be private, but the IT people will be able to see who were the guests, whether they are guests with an account or not (in the latter case, they will see the IP address and displayed name).

More on reddit.com
🌐 r/Zoom
9
4
September 23, 2017
🌐
Reddit
reddit.com › r/java › intellij idea moves to the unified distribution
r/java on Reddit: IntelliJ IDEA Moves to the Unified Distribution
July 17, 2025 - Your perpetual fallback license still works as before, giving you access to the last major version available at the time your most recent uninterrupted year of subscription began. With the unified distribution, this means you can activate older versions that match your fallback license. Alternatively, you can use the latest version of IntelliJ IDEA with access to its current free feature set.
🌐
GitHub
gist.github.com › PathumRathnayaka › c8179784a89d4011d19099bf06813e68
etBrains products activation 2025 · GitHub
4 days ago - Custom license name (press Enter for default: ckey.run): Custom license expiration date (press Enter for default: 2099-12-31, format: yyyy-MM-dd): [2025-11-29 11:26:02][INFO] Processing, please wait patiently... [2025-11-29 11:26:02][INFO] All dependencies have been installed.
Find elsewhere
🌐
SHI
shi.com › product › 30060258 › IntelliJ-IDEA-License
IntelliJ IDEA - License | Overview, Specs, Details | SHI
Buy IntelliJ IDEA - License at SHI. See detailed specifications and benefit from expert support. Shop IT hardware and software products with SHI now!
🌐
Dmacc
help.dmacc.edu › TDClient › 392 › Portal › KB › ArticleDet
Activating IntelliJ IDEA License
Select the License server option. Enter the server address: https://dmacc.fls.jetbrains.com · Click Activate. You will be redirected to a DMACC sign-in page. Enter your DMACC email address and complete the login process. Once signed in, you will see an Authorization Successful message. Close the browser window and return to IntelliJ IDEA.
🌐
Quora
quora.com › Where-can-I-find-the-best-deal-on-JetBrains’-IntelliJ-IDEA-Ultimate
Where can I find the best deal on JetBrains' IntelliJ IDEA ...
If you are a student, you will get it free (see here [1]). If you work for a company, they generally have floating licenses that they will give you access to if you want to use certain IDEs.
🌐
Reddit
reddit.com › r/inventors › has anyone had success licensing an idea?
has anyone had success licensing an idea? : r/inventors
October 23, 2022 - The basic process for licensing is to create a sell sheet. On that sell sheet you put some sort of depiction of the invention. Which can be a picture of a prototype, 3D model or hand drawing illustration. The general rule of thumb is to use the bare minimum you need to get the point across ...
🌐
SkyNova
skynova.com › learn › business › how-to-license-a-product
How to License a Product in 2025
The person or company granting the rights to intellectual property is the licensor, while the party receiving the rights is the licensee. The licensee typically pays an upfront fee and royalties to the inventor for the license. Most companies looking to license a new product idea are manufacturers that can produce, market, and distribute the finished product.
🌐
inventRight
inventright.com › home › how to license an idea to more than one company
How To License An Idea To More Than One Company | 2023
Overall, licensing an idea to multiple companies is a difficult task. The best approach is to find a territory or category that your potential licensee does not currently participate in and carve out those specific aspects in the licensing agreement.
Published   September 6, 2023
🌐
Quora
quora.com › I-have-an-invention-but-Im-looking-to-license-the-idea-or-sell-it-Which-is-better
I have an invention, but I'm looking to license the idea or sell it. Which is better? - Quora
Answer (1 of 3): Do you have an invention, or an idea? Big, big difference. If you don’t know the difference between an idea and an invention, you are a long, long way from being able to license or sell anything. Without a patent, without a recognized brand name, without demonstration of ...
🌐
Inspiredideasolutions
inspiredideasolutions.com › home › license with ease and peace of mind after your ip is protected
License with ease and peace of mind AFTER your IP is protected - Inspired Ideas Solutions
June 7, 2022 - Like many inventors you may have limited funds, are unfamiliar with the manufacturing process, or have many great ideas that you can’t take them all to market. Licensing your idea can be a perfect solution without investing in manufacturing, distribution, and sales.
🌐
Boston University
bu.edu › research › collaboration-partnership › otd › programs › pitching-to-sell-ip-licenses
Tutorial: Pitching to Licensees to License Your Idea | Office of Research
It is natural to focus your pitch to a potential licensee on your technology, but corporate decision makers are looking for solutions to problems rather than pushing the boundaries of science and engineering. Even if their primary goal in licensing your patent is to push those boundaries, you can engage them more readily by framing your innovation as the best way to solve that specific problem.
🌐
inventRight
inventright.com
inventRight | Helping Inventors For Over 25 Years
inventRight helps inventors license their ideas, bypassing the risks of starting a business. With expert coaching and industry access, it's the fastest path to market success.
🌐
Nolo
store.nolo.com › products › profit-from-your-idea-lice.html
Profit From Your Idea - How to Make Smart Licensing Deals - Legal Book - Nolo
The 11th edition covers the latest developments in licensing law and patent filing rules, and discusses new tools to help you research the market for your invention and identify potential licensees. “Tells prospective entrepreneurs how to move an idea ‘from thought to bought’…”—Los Angeles Times
🌐
Half Price Books
hpb.com › how-to-license-your-million-dollar-idea-everything-you-need-to-know-to-turn-a-simple-idea-into-a-million-dollar-payday › P-453991-USED.html
How to License Your Million Dollar Idea: Everything You Need to Know to Turn a Simple Idea Into a Million Dollar Payday
How to License Your Million Dollar Idea: Everything You Need to Know to Turn a Simple Idea Into a Million Dollar Payday
Buy How to License Your Million Dollar Idea: Everything You Need to Know to Turn a Simple Idea Into a Million Dollar Payday at Half Price Books.
Price   $6.99
🌐
Inc
inc.com › home › should you venture or license your invention idea?
Should You Venture or License Your Invention Idea?
February 3, 2022 - Simply put, licensing is akin to renting. In exchange for the right to make and sell your idea, your licensee — a company already in business — pays you a small percentage of each unit based on the wholesale price.