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Tool workspace

JavaScript Playground

Execute JavaScript snippets safely outside the main app context.

Runs locally in a sandboxed iframe.

JavaScript executes in a sandboxed iframe, not in the main UtilityStacks page context.

Ctrl/Cmd + Enter to run

javascript
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Sandbox runtime

Console

No console output.

How to use

  1. Write JavaScript in the editor.
  2. Run with Ctrl/Cmd + Enter.
  3. Inspect output in console and reset as needed.

Limitations and caveats

  • Sandboxed runtime has no access to UtilityStacks internals.

Related tools

HTML/CSS/JS PlaygroundEdit HTML, CSS, and JavaScript with live sandbox preview and console output.Regex TesterTest JavaScript regular expressions with matches, capture groups, and replace preview.JSONPath TesterQuery JSON documents using JSONPath and inspect formatted results.