Best Coding Playgrounds in 2026 · page 2

Kaggle Notebooks

Kaggle Notebooks is a free cloud environment for reproducible, collaborative machine learning analysis.

Observable

Observable is a notebook platform for analyzing and visualizing data, explaining ideas with code, and building data-driven workflows and custom apps.

Val Town

Val Town is a platform for developers to write, run, host, and share code for automations and internal tools.

Anaconda Notebooks

Anaconda Notebooks puts JupyterLab in a cloud workspace for writing, editing, and running Python through an Anaconda Cloud account.

Posit Cloud

OneCompiler

JSFiddle

JSFiddle is a browser-based code hosting platform and playground for building and sharing frontend examples.

MATLAB Grader

MATLAB Grader lets instructors create interactive MATLAB coding assignments and automatically grade submissions for formative assessments, quizzes, and exams.

marimo

marimo is an open-source reactive Python notebook for reproducible experiments, data work, and building apps.

REMOSSH

JupyterLite

Wolfram Cloud

Wolfram Cloud combines browser-based notebooks with Wolfram Language, providing an environment for computation, document authoring, interactive…

TutorialsPoint Coding Ground

TutorialsPoint Coding Ground lets you choose a programming language and write and run code in a browser.

Dodona

YaliCode

Python Playground

Google Cloud Workstations

Google Cloud Workstations provides managed development environments for security-sensitive enterprises.

JupyterHub

JupyterHub lets organizations provide computational environments to groups without requiring each user to install and maintain an individual setup.

Striqr

Online IDE Pro

SageMath

SageMath is a free, open-source mathematics system for calculations across subjects such as algebra, calculus, number theory, cryptography, numerical…

Theia IDE

Theia IDE is a free, open-source development environment for cloud and desktop, built on the Theia Platform.

TypeScript Playground

TypeScript Playground is a free browser environment for writing, running, and sharing TypeScript and JavaScript code.

Pickcode

Nextjournal

Nextjournal is a notebook for reproducible research and data-driven work, available as a hosted web service or for self-hosting.