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For Minetest 5.2 and above

How do I install this?

Formspec Editor

REALTIME formspec viewer/editor "game" for minetest

Getting Started

This mod needs access to an insecure environment in order to work.

Add formspec_edit to secure.trusted_mods in your minetest.conf file.

The file formspec.spec in your:


contains a formspec you can edit and see updates of in real time. (You can also specify a file location with the formspec_editor.file_path setting.) Simply add the game to MT, load up a level of Formspec Editor, and you will be greeted with the formspec.

  • To make edits, open the file in your editor of choice and make changes as you see fit. When you hit save, the formspec will auto-update. Best when used side by side.
  • To exit just hit <escape> or use a button_exit[] button. Both send the fields.quit message.
  • You can test with images if you want, adding a "textures" folder to the formspec_edit gamemod folder, otherwise images will default to random colors.
  • You can show the formspec with builtin, minetest_game or mineclone2 styling (see the setting)
  • You can change the refresh rate by changing the formspec_editor.update_time setting



Do you recommend this game?

  • Makes creating formspecs a breeze

    This 'game' is excellent. No longer do I need to launch a world, look at a formspec, tweak the code, reload the world. I get instant feedback on changes. Lining different elements up is soo easy with this.

  • INSANELY useful for formspec creation

    This game is INCREDIBLE. Its the most efficient way to create formspecs.

  • Lifesaver

    Working with formspecs on Minetest is highly frustrating, but this utility makes it (almost) bearable. A must if you love yourself. I'd leave two positive votes if I could, great job!

  • Loved the idea!

    Super easy way to create formspecs.


    • Add some sort of in-game docs on how to build the UI. A drag'n'drop tool to design the layout would also be amazing but not sure if aplicable.
    • Wondering if the mod could also be added to regular game and be used to edit in-development mod formspecs?
  • Wonderful development tool

    Great for rapid prototyping!



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