FrontPlay

Safely run, edit, and verify HTML/CSS/JS code generated by ChatGPT, Claude, Gemini, and other AI chat tools — with enterprise-grade security. No data is stored; multi-layer defense lets you test code with confidence.

Run AI-generated code — safely.

You want to try the HTML/CSS/JS that ChatGPT, Claude, or Gemini produced — but pasting it straight into a browser feels risky. Malicious code could slip in unnoticed.

FrontPlay is a dedicated runtime for AI-generated code. It runs code in a fully isolated sandbox, blocks access to dangerous APIs like XMLHttpRequest, fetch, and localStorage, and monitors execution in real time — stopping abnormal behavior immediately.

Latest Updates

July 2026 NEW

AI Edit — Send your editor code along with what you want changed in plain language, and AI designs a diff and merges it into your existing code — fast fixes for layout tweaks, bug fixes, or snippet swaps without rewriting from scratch. A planning LLM designs the diff, then a fast apply model merges it in.

This is for fixing existing code, not generating from scratch. Available to signed-in users, with monthly edit limits per plan.

Key Features

AI Code Execution

Paste code generated by ChatGPT, Claude, or Gemini and run it instantly — no setup required.

Real-time Verification

Confirm AI-generated code behaves as expected, right away.

Safe Editing

Tweak and refine AI code, then run it safely to see the result.

Debug Support

Console output and error messages help you pinpoint issues in AI code quickly.

Multi-format

Supports HTML, React, Canvas, and other AI-generated code formats.

No Data Stored

Nothing you run is saved. Try freely without leaving a trace.

Use Cases

Run untrusted code in isolation
You never know what AI-generated code does behind the scenes until you run it. FrontPlay runs it inside a safe sandbox that can't touch your computer or files, so you can check its behavior without risking your environment.
See where data is being sent before you decide
Looking right on screen doesn't mean it's safe — where data goes in the background is a separate question. Every external request goes through a confirmation dialog, with extra warnings when sensitive information may be involved, so you can review the destination and authorize sending yourself.
Fix what you can yourself, let AI handle the rest
For small tweaks, edit the code directly and skip the AI cost. For complex changes, just describe what you want in words and AI updates the code. Either way, you see the result on the spot.
Beyond just running on screen — export to a print-ready, shareable form
Verifying in the browser isn't the end. Export to PDF matched to standard paper sizes, and you've got something ready to print or hand out as-is.

FrontPlay

Visit the official site for full details and to get started free.

Try FrontPlay » Discuss Implementation

Talk to us about FrontPlay

Questions about how FrontPlay fits your workflow? We're happy to talk it through.