Online Pascal Compiler
Write Pascal in the browser and run it on our machines. The editor is opening.
Free online Pascal 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 Pascal and many other languages, without installing a toolchain.
What you see on this page is JDoodle’s free Pascal compiler. Write Pascal in the editor, press Execute, and JDoodle runs it on its servers. You do not install Pascal, and you do not need a JDoodle account to run code.
Online Pascal editor
JDoodle’s Pascal editor on this page highlights syntax, completes as you type, matches brackets, and folds blocks. It is an online Pascal editor and a compiler together: you write here, then Execute runs your program on JDoodle’s servers.
Pascal versions on JDoodle
JDoodle currently ships these Pascal builds. Choose one from the version menu before you execute. The installed releases are fpc 3.0.0, fpc-3.0.2, fpc-3.0.4, and fpc-3.2.2.
| Version |
|---|
| fpc 3.0.0 |
| fpc-3.0.2 |
| fpc-3.0.4 |
| fpc-3.2.2 |
Frequently asked questions
Is JDoodle’s online Pascal compiler free?
Yes. JDoodle lets you write and run Pascal without paying. A JDoodle account is only needed to save projects, use more AI credits, or unlock faster workspaces.
Do I need to install Pascal to use JDoodle?
No. JDoodle runs Pascal on its servers. Open this page in a browser and execute.
Which Pascal version should I pick on JDoodle?
Choose the version that matches the course or codebase you are working against from the version menu. The builds JDoodle has installed are fpc 3.0.0, fpc-3.0.2, fpc-3.0.4, and fpc-3.2.2.
Is this an online Pascal editor or a compiler?
Both. The page is an online Pascal 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.