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I Built a Chrome Extension With ChatGPT in Under an Hour — Here's How It Went

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Messy Updates Chatgpt Chrome-Extension N8n Webhooks Build-Log
Table of Contents

I recently developed a Chrome extension using ChatGPT, completing the initial build in approximately 45–60 minutes. The project came out of my work with n8n workflows and a RAG solution called BizBrains.

Chrome Extension Build

What I Built #

An extension that lets me trigger n8n workflows manually via webhooks — eliminating the need for continuous polling of data sources like Coda Tables or Gmail inboxes.

I collaborated with ChatGPT to produce vanilla, configurable code across three files: manifest.json, popup.html, and popup.js.

Testing Process #

  1. Created a folder containing the three generated files
  2. Loaded the extension into Chrome via chrome://extensions/
  3. Enabled Developer Mode and selected “Load Unpacked”
  4. Added the folder to Chrome
  5. Configured webhook names and URLs through the extension menu
  6. Executed webhooks by clicking “Run”

Three Iterations #

It wasn’t clean first time:

  • Version 1: Icons displayed as corrupted text
  • Version 2: Caused complete Chrome crashes
  • Version 3: Functioned successfully

Each refinement came through visual feedback and iterative prompting with ChatGPT.

Why It Matters #

The extension lets clients trigger workflow executions on demand rather than adhering to predetermined polling intervals. This is particularly valuable for knowledge ingestion systems that need immediate updates when new documents are added.

Update (15/04/2026): The “Instant Webhook” extension is now available on the Chrome Web Store.