| Feature | GitHub Codespaces | Replit | CodeSandbox | JetBrains Space | AWS Cloud9 |
|---|---|---|---|---|---|
| Supported Languages | Extensive (Markdown, PowerShell, Python, HTML, CSS, JS, React, Go, etc.) | Wide (Markdown, Python, HTML, CSS, JS, React, Go, etc.) | Web-focused (Markdown, HTML, CSS, JS, React, etc.) | Extensive (Markdown, Python, HTML, CSS, JS, Go, etc.) | Extensive (Markdown, Python, HTML, CSS, JS, Go, etc.) |
| Markdown Support | Yes | Yes | Yes | Yes | Yes |
| PowerShell Support | Yes | No | No | No | Yes |
| Python Support | Yes | Yes | Yes | Yes | Yes |
| HTML/CSS/JavaScript Support | Yes | Yes | Yes | Yes | Yes |
| React Support | Yes | Yes | Yes | Yes | Yes |
| Go Support | Yes | Yes | No | Yes | Yes |
| GitHub Integration | Excellent (Native GitHub Integration) | Good (GitHub Import/Export) | Good (GitHub Sync) | Good (GitHub/Other SCM Integration) | Good (GitHub Import/Export) |
| Cloudflare Integration | Yes (via CLI) | No | No | No | No |
| Cloud Repos | Yes | Yes | Yes | Yes | Yes |
| Plugin/Extension Support | Yes (VS Code extensions) | Limited (Built-in tools) | Limited (Built-in tools) | Yes | Yes |
| Collaborative Editing | Yes (Live collaboration via Live Share) | Yes | Yes | Yes | Yes |
| Custom Dev Environment | Yes (via .devcontainer files) | No | No | Yes | Yes |
| Ease of Use for Novices | High | Very High | High | Moderate | Moderate |
| Commerce/Wiki Focus | Flexible | Moderate | Strong for Web Apps | Enterprise-oriented | Moderate |
| Free Tier Available | Yes (Limited free hours) | Yes | Yes | No | No |
| Device Access (Browser/Local) | Browser | Browser | Browser | Browser | Browser |