Best Programming Playground Products in 2025

A front end web development playground.

Key CodePen features:

Real-time Collaboration Immediate Visual Feedback Integrated Development Environment (IDE) Community-Driven

Built for teams that move fast — Backlog is the all-in-one project management solution with exactly what you need, and nothing you don’t.

Key Backlog features:

Comprehensive Project Management Integrated Bug Tracking Collaboration Tools Customizable Workflow

Try for free freemium $35.0 / Monthly (For growing teams, up to 30 users, 5 projects, 1 GB storage.)

Reload-free 2-way input ⇄ output sync + remote output; programmable embeds; global edge storage and workers.

freemium $10.0 / Monthly (PRO)

Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration.

Key Vercel features:

Easy Deployment Fast Performance Serverless Functions Integration with Next.js

#1 playground that connects to the APIs of major large language models.

freemium $8.0 / Monthly

Online VS Code Editor for Angular and React.

Key StackBlitz features:

Speed Ease of Use Zero-Setup Integrations

Open Source

Online playground for React.

Key CodeSandbox features:

Ease of Use Instant Collaboration Pre-configured Environments Integrated Development

Open Source

GPT-3 access without the wait.

Key OpenAI features:

Advanced AI Research User-Friendly Tools Broad Application Scope Commitment to Safety

Open Source

Claude is a next generation AI assistant built for work and trained to be safe, accurate, and secure. An AI assistant from Anthropic.

Key Claude AI features:

Advanced Natural Language Processing High Customizability Scalability Robust Plugin Ecosystem

Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

Key JSFiddle features:

Easy Sharing and Collaboration Real-Time Editing Supports Multiple Frameworks Embed Feature

Sample of the bin:.

Key JS Bin features:

Real-time Collaboration Instant Preview Embed Feature Debugging Tools

Open Source

Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.

Key replit features:

Ease of Use Collaborative Coding Supports Multiple Languages Cloud-Based

Super sleek javascript playground with instant live preview and console. Start code within seconds. No “npm run start” or anything.

Key Playcode.io features:

Result view as you type Easy to use Fast Storage Space

freemium $9.0 / Monthly

With our online code editor, you can edit code and view the result in your browser.