Flash compatibility notes

What is the Flash emulator?

Flash will no longer be supported by Adobe after 2020, which means that you will no longer be able to run Flash in your browser. To prepare for this, many developers have started developing emulators optimized for HTML5, and the emulator we are using (Ruffle) is one of them. The emulator is an alternative to Adobe Flash Player, which allows you to run Flash on the web without any problems even when the browser's Flash support has ended, and has improved several security issues.

Why some Flash won't launch or have behavior problems?

Although the goal of the emulator is to reproduce the Adobe Flash Player 100%, the development of the emulator is not fast and easy because the emulator is a separate open source project that is not produced by Adobe. So it will take some time for the emulator to support full compatibility. Although many problems have been improved over time, there are still problems that are common to some flashes, or some may proceed differently from the actual flash behavior. You will have to wait for the emulator to improve until the problem is resolved.

Can you tell me if the Flash I want runs perfectly?

Based on the currently reported information, we will notify users in advance of implementation if there are any issues with the implementation. However, the information provided may not be 100% accurate as it is difficult to check all flashes every time the emulator version is upgraded. However, you can update the executable status of your flash at any time using the Report a Problem feature.

What can you do when your content isn't running at all?

Did the content run into non-executable state issues? (It is not a problem with the operation, but if the execution itself does not work) If so, please try following the recommendations below.

  • We recommend using Chromium-based or the following browsers: Google Chrome, Chromium-based Microsoft Edge, Mozilla Firefox
  • Internet Explorer 11 is not supported. Always keep your browser app up to date.
  • For 64-bit-based Windows 10 or later, macOS 10.14 or later, and Linux, we recommend a distribution of 2021 or later. Windows 7, 8.x may not run smoothly.
  • Although there are no specific official minimum requirements, we recommend the following hardware for a pleasant run: 8 GB of RAM or more, and a GPU with DirectX or Vulkan API support
  • In some cases, trying to refresh the page will fix it. Or try turning off other programs (apps) other than the browser for a while.
  • On mobile, loading can be quite long. If you don't see anything or the screen is blank, wait a moment and the file may run.
  • Did you install the browser Ruffle extension (or any other flash-enabled extension or plugin) separately? It may conflict with the website's built-in scripts, so please disable it for a while and try again.
  • Please clear your browser cache and try again.