Processing & p5.js iCompiler 4+

#1 App for Processing & p5.js apps S.L.

Designed for iPad

    • 3.6 • 74 Ratings
    • Free
    • Offers In-App Purchases



Compose and compile your Processing & p5.js projects right on your phone or iPad, wherever your are!

Export your Processing projects as App on your home screen:
1. Select an App icon for your Processing project.
2. Add it to your home screen.
You can now use the app offline, just like any other app!

This app is already being used in high schools and universities to teach and learn Processing & p5.js.

Your code is highlighted and formatted for excellent reading-comfort.
Processing Pro allows you to see which parts of your code are causing problems.

3D sketches and games are supported.

This is not an official app by or p5.js

Available subscription: Processing Pro, offers additional functionalities, such as exporting your sketches as apps.

Trailer Music: Circle of Alchemists

Privacy and Terms:

What’s New

Version 2.7

Finished support for Webcam / Camera API for p5.js projects.
You can now access the phone‘s camera via p5.js‘ createCapture() API!

Ratings and Reviews

3.6 out of 5
74 Ratings

74 Ratings

cvonnagy ,

Nice implementation of Processing

Frogg GmbH´s implementation of a Processing IDE for iOS is straightforward and easy to use both for the beginner and for the experienced Processing developer. It s nice to be able to test out simple to moderately complex sketches on the go. I do have a few suggestions: 1) a simple help system for beginners focusing on iOS-specific interactions with the hardware would be nice (camera, accelerometer, gyroscope, GPS? but, perhaps, some of these have not been or will not be implemented), 2) integration with other software tools (for instance, GitHub clients such as Working Copy), 3) a means to create and interact with a “data” directory and to import and export resources, and 4) a means to interact over Serial with external devices (ultimately, Arduinos, etc) would be nice. Thanks for taking the time to create a fine app.

ndzied1 ,

Please Let us know the limitations

Love this for playing around on my phone.

I understand wanting payment for advanced features like debug messages.

But please put a list of the major limitations of the compiler somewhere. Through reading reviews it seems that vectors and maybe functions with parameters are not supported. But a list from the Dev would be much appreciated.

MediaJolt ,

It’s okay, but importing doesn’t work

I get it’s open source and free to use (I’d pay for it if a: there were a list of features I’d get for that, and b: I could find the in-app purchase page), but the import project folder feature doesn’t work. If this is something that’s a benefit for paying users, it should either be disabled or lead to the subscription page. A coder-friendly keyboard would be a plus, but I can manage. For doing quick Processing sketches on the fly, it’s good enough but don’t expect to be able to do more complex projects.

App Privacy

The developer, apps S.L., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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