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Build a Chrome extension for presenting webinars

A Replit forum user built a Chrome extension so they could keep notes in view while presenting webinars, and published it to the Chrome Web Store.

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Use case overview

A Replit forum user built a Chrome extension so they could keep notes in view while presenting webinars, and published it to the Chrome Web Store.

Read the original report ↗

Reported experience

  1. What they did

    The poster wanted to stop glancing down at notes during webinars, so they built a floating teleprompter overlay for browser-based video meetings. They started in Replit with a rough first version and debugged it until it stopped crashing. Then they pushed it to GitHub and moved it into a Claude project. They fixed issues the Chrome Web Store reviewers raised, then published.

  2. How it went

    The extension was published on the Chrome Web Store and the author finds it useful. A commenter reported it doesn't work on Mac, because Alt+T opens a new tab. The author develops on Windows.

  3. Worth knowing

    The author says the build was roughly 80-85% Replit, with Claude and ChatGPT used for refinement, and the process was repeated build-break-fix cycles rather than one clean prompt.

Example prompts

Try with Replit Agent
Build me a Chrome extension that shows my [speaker notes / talking points] in a small always-visible panel while I present [webinars or screen-share talks]. I should be able to paste in and edit notes, and resize or move the panel. You're done when I can load the extension locally in Chrome and see my notes on a test page, then walk me through the steps to publish it to the Chrome Web Store without submitting anything yet.

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