Online Fantom Compiler
Write Fantom in the browser and run it on our machines. The editor is opening.
Free online Fantom compiler and editor
JDoodle is an online IDE that has served the programming community since 2013. You write, compile, and run code in the browser for Fantom and many other languages, without installing a toolchain.
What you see on this page is JDoodle’s free Fantom compiler. Write Fantom in the editor, press Execute, and JDoodle runs it on its servers. You do not install Fantom, and you do not need a JDoodle account to run code.
Online Fantom editor
JDoodle’s Fantom editor on this page highlights syntax, completes as you type, matches brackets, and folds blocks. It is an online Fantom editor and a compiler together: you write here, then Execute runs your program on JDoodle’s servers.
Fantom versions on JDoodle
JDoodle runs Fantom 1.0.69.
Frequently asked questions
Is JDoodle’s online Fantom compiler free?
Yes. JDoodle lets you write and run Fantom without paying. A JDoodle account is only needed to save projects, use more AI credits, or unlock faster workspaces.
Do I need to install Fantom to use JDoodle?
No. JDoodle runs Fantom on its servers. Open this page in a browser and execute.
Is this an online Fantom editor or a compiler?
Both. The page is an online Fantom editor and it compiles and runs what you write.
Input, interactive runs, files, and the rest of the editor work the same on every language. See the JDoodle IDE documentation.