CodeWorld

Spec sheet

Purpose

CodeWorld is an educational programming environment using Haskell.Read 12 Oct 2026 · github.com

Audience

The project README describes the educational Haskell variant as designed to support mathematics instruction.Read 12 Oct 2026 · github.com

Deployment

The project provides installation scripts for most Linux distributions, including Debian, Ubuntu, RedHat, and CentOS.Read 5 Oct 2026 · github.com

Free plan

YesRead 23 Sep 2026 · code.world

Support

The README says CodeWorld is not an official Google project and Google provides no support; it directs project questions to the discussion mailing list and student programming questions to the help forum.Read 12 Oct 2026 · github.com

Account sign-in

The live site uses Google authentication, which lets CodeWorld offload account and credential management to Google.Read 5 Oct 2026 · github.com

Authentication

The live site uses Google authentication, while self-hosted installations can use Google authentication, local authentication, or run without authentication with reduced functionality.Read 12 Oct 2026 · github.com

Blocks interface

CodeWorld Blocks provides a drag-and-drop programming interface for younger students, but the project says it has bugs and is not recommended for use.Read 5 Oct 2026 · github.com

Blocks limitation

The project README says the Blocks interface has bugs and is not recommended for use.Read 12 Oct 2026 · github.com

Browser editor

The web-based environment includes an editor and compiler and runs programs in the browser using GHCJS.Read 12 Oct 2026 · github.com

Educational Haskell

The CodeWorld variant of Haskell and its libraries are designed to support mathematics instruction.Read 5 Oct 2026 · github.com

Learning variants

CodeWorld offers an educational Haskell variant, a standard Haskell variant, and a drag-and-drop Blocks interface for younger students.Read 12 Oct 2026 · github.com

Local authentication

Local authentication uses SQLite, BCrypt password hashes, and JWT-based stateless authentication; it has no web-based administrative interface.Read 12 Oct 2026 · github.com

No installation

The project says users can get started at code.world without downloading or installing anything.Read 5 Oct 2026 · github.com

Programs

It provides a mathematical model for geometric figures, animations, and interactive and multiplayer games.Read 12 Oct 2026 · github.com

Self-hosted authentication

Self-hosted installations can use local authentication with a SQLite database, BCrypt password hashes, and JWT-based authentication.Read 5 Oct 2026 · github.com

Setup

The README says there is no need to download or install anything to use CodeWorld.Read 12 Oct 2026 · github.com

Sharing and storage

The environment supports sharing and cloud storage of projects.Read 12 Oct 2026 · github.com

Source license

The GitHub repository identifies the project license as Apache-2.0.Read 5 Oct 2026 · github.com

Standard Haskell

CodeWorld Haskell uses standard Haskell and can build programs for the website or compile them natively with codeworld-api and blank-canvas.Read 5 Oct 2026 · github.com

Supported use

The project describes CodeWorld as stable and says it has been used in schools for years.Read 5 Oct 2026 · github.com

Unauthenticated use

Without authentication, users can write, build, and run code but cannot save or manage projects and folders.Read 5 Oct 2026 · github.com

Where Specifiction places it

• Coding Playgrounds#121 of 1387.2