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Welcome to Processing

Processing is a flexible software sketchbook and a language for learning how to code. Since 2001, it's been where artists, designers, researchers, and learners go to bring ideas to life with code.

Download Processing Read the docs

Runs on

Sketch with code

In Processing, everything is code, even the logo!
Try changing a few values and see what happens.

Learn Through Examples

Processing includes many examples you can run and modify. Open one, change
the code, and make something new. This is a great way to learn!

More Examples

Getting started

Download and open the 'Processing' application. Select something from the Examples. Hit the Run button. Lather, rinse, repeat as necessary. More information on using Processing itself is can be found in the environment section of the reference. To learn the Processing language, we recommend you try a few of the built-in examples, and check out the reference. A group of diverse books have been written to help people with different goals and skill levels.

Getting Started Tutorial

Don’t know where to get started? Read this tutorial, which will guide you through the basics of Processing

Read tutorial

Check out the Reference

Find further documentation of the Processing language

Go to Reference

Get the software

The Processing Development Environment makes it easy to write Processing programs. It’s free and open source!

Download Processing

Have more questions?

Join the conversations on the Forum to share and learn.

Visit Forum

Processing is turning 25! Join the celebration.

In 2026, Processing turns 25. This October, we will celebrate together around the world, through events organized by local communities.

If Processing has been part of your work, teaching, or creative practice, start planning a Processing Community Day (PCD) in your city!

Learn More about PCD

Contribute

The core Processing software is augmented by libraries and tools contributed through the community. These inventive extensions are a bright future for the project. We have a list of Contributed Libraries and Contributed Tools posted online. These contributions can't be underestimated.

To contribute to Processing development, please visit Processing on GitHub to read instructions for downloading the code, building from the source, reporting and tracking bugs, creating libraries and tools.

Processing on GitHub

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