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SEEDChecker is a Java tool that can periodically check if a SEED is available for a certain 3DS title


First of all make sure you have Java installed. You can download it here

  • With Java installed run the tool.
  • Enter the TitleID of the title you want to start checking
  • Enter country following the ISO Alpha 2 code, examples are JP for Japan and US for United Stated.
  • You can find all ISO Alpha 2 country codes [here] (
  • Finally select the interval at which you want the tool to check the server and hit the button. A new window will pop up which will produce a log of events. Assuming you are checking for a SEED that is not available it will mostly tell you just that, once it is available however it will download it and tell you the download location.
  • The download location will by default always be your user directory/downloads/TitleID.dat.
  • For example C:\Users\UserName\downloads\TitleID.dat


Ready made builds of the latest version can always be found under Releases. Click here to go there

If you desire to compile the source yourself you need [Java SE Development Kit] ( as well as a Java compatible IDE such as netbeans or IntelliJ IDEA. Open the project in the IDE of your choose and build it from there by whichever method the IDE uses.

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