Red
Red
About RedPractice

Want to learn and master Red?

Join Exercism’s Red Track for access to 52 exercises with automatic analysis of your code and personal mentoring, all 100% free.

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About Red

Red [
	Title: {Random dog viewer}
	Author: "loziniak"
	Needs: View
]

view [
	below
	img: base 150x150
	button "Dog photo" [
		dog-data: load-json read https://api.thedogapi.com/v1/images/search?size=thumb
		img/image: load to-url dog-data/1/url
	]
]

52 coding exercises for Red on Exercism. From Space Age to Yacht.

Get better at programming through fun, rewarding coding exercises that test your understanding of concepts with Exercism.

Space Age

Space Age

Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.

Camicia

Camicia

Simulate the card game and determine whether the match ends or enters an infinite loop.

Yacht

Yacht

Score a single throw of dice in the game Yacht.

See all Red exercises on Exercism

Key Features of Red

Red

Full stack

Build applications in Red and system-level code in Red/System.

Lightweight

Download one small executable and start coding—no setup needed.

Code is data

Inspect and reshape code as data to build your own syntax.

Dialects

Build custom DSLs and parse structured input with Parse.

Native GUI

Build cross-platform UIs and drawings without another toolkit.

Reactive

Link objects with reactions to keep programs simple and concise.

Get mentored the Red way

Every language has its own way of doing things. Red is no different. Our mentors will help you learn to think like a Red developer and how to write idiomatic code in Red. Once you've solved an exercise, submit it to our volunteer team, and they'll give you hints, ideas, and feedback on how to make it feel more like what you'd normally see in Red - they'll help you discover the things you don't know that you don't know.

Learn more about mentoring

Community-sourced Red exercises

The Red track on Exercism has 52 exercises to help you write better code.

See all Red exercises
Red

Get started with the Red track

The best part, it’s 100% free for everyone.

Join the Red track