[beta] A web-based version and type system improvements


  • There is now a web-based version of GMEdit!
    This can be handy for viewing/editing GameMaker projects without having/being able to install software on the device.


  • Anton has further refined font and sprite editors!
  • There is now a linter flag to allow implicit nullable->non-nullable (T? to T) casts.
    This can be convenient if you set your values to undefined a lot.
  • I added options for specifying default window size and/or native window border.
    (native window border can be good on Mac if you are slightly annoyed by right-aligned Windows-style control buttons on GMEdit’s window)

Type system

  • Functions can now be implicitly cast to script type.
  • You can now use either<A;B> instead of (A|B)
    (because GMS2 IDE has a hard time handling parentheses in argument names/types)
  • You can now do globalvar a, b, c; /// @is {type} to mark all of them as the same type
    (note: declarations must be on the same line)
  • method(value, function(){...}) is now handled as a special case so that self inside function will be the type of value.
  • Linter now warns about missing fields when accessing anonymous struct literals ({...}).
  • real can now be used as an alias to number.
  • Assigning undefined to a variable no longer sets its type to undefined with inference enabled
  • Trying to cast a value to the same type that it is now shows a warning.
  • Fixed wrong return types in a few more functions.


  • Fixed 2.2 rename failing if you have a tab without a path open (e.g. search)
  • Fixed a few cases where words/numbers were highlighted incorrectly when next to a : or inside ?:
  • Fixed warning line markers not playing well with code folding.
  • Added a warning when trying to use GMEdit with an incompatible Electron version.
  • Fixed “No idea how to open -psn#” on Mac for real this time.
  • Fixed new X(); not being allowed by linter.
  • Fixed try{}catch(e) not adding e to local variables.
  • Fixed GML files inside GMS2 extensions sometimes getting indexed multiple times.
  • Fixed projects sometimes not indexing right when opening a ZIP/YYZ.


GMEdit-Beta-Windows.zip 90 MB
Version Mar 20, 2021 Mar 20, 2021
GMEdit-Beta-Mac.zip 82 MB
Version Mar 20, 2021 Mar 20, 2021
GMEdit-Beta-Linux.zip 84 MB
Version Mar 20, 2021 Mar 20, 2021
GMEdit-Beta-App-Only.zip 3 MB
Version Mar 20, 2021 Mar 20, 2021

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