How to preview scraped data in the browser before running a full headless automation job?

My biggest annoyance with standard Playwright is the feedback loop. I write a script, run it, wait 30 seconds for the headless browser to spin up and navigate, only to realize my selector was slightly off and returned null.

Is there a way to test my data extraction logic instantly while I’m building it?

Absolutely. That slow feedback loop is exactly what the RTILA Chrome Extension is designed to eliminate.

When you are building your dataset in the extension’s side panel, just hit the “Refresh Preview” button. Instead of spinning up the heavy Deno automation engine, the extension sends a message directly to our injected content script in your active tab. It parses the live DOM right there in your browser and instantly returns the extracted data into a preview table in the UI.

Note: The preview mode is smart enough to safely skip server-side commands (like saving to a local file or running AI prompts) so you can test your DOM extraction safely without triggering unwanted side effects.