I Built a YouTube Summarizer Chrome Extension with AI

Build a Chrome extension with AI: a working YouTube transcript summarizer. - Extension - https://chromewebstore.google.com/detail/youtube-transcript-downlo/amocilkjnmhbaflilmkbjphompimploo - GitHub - https://github.com/sieis/YouTube-Transcripter-Chrome-Extension ⭐ Get good at spreadsheets and automations: https://gotsheet.xyz/c/gotsheet-youtube My favorite AI use-case is coding solutions like this to solve my own problems. Follow my real build using Claude to scaffold a Chrome/Edge extension that opens a video’s transcript and downloads it as text. We cover manifest.json, popup + content scripts, icon sizing, DevTools debugging, loading the extension locally, and a sidebar prototype for future AI chat. You’ll see the exact prompts, common bugs, and how I iterated. 🎬 Watch next: https://youtu.be/zQ4raRywU3Y ──────────────────── 💰 Deals & Tools • Convert PDFs and images to Excel - https://lido.app/link/eamonn • Connect Google Sheets or Excel directly to your business systems like CRMs, databases, and APIs - https://coefficient.io/?via=eamonn • 20% off Beehiiv (3 mo.): https://beehiiv.com/partners/got-sheet?via=eamonn • My full tech stack: https://gotsheet.xyz/c/business-tech-stack • My recommended gear: https://amzn.to/4l47CyW *Disclosure: affiliate links may earn me a small commission at no cost to you.* ──────────────────── ⌚ Timestamps 00:00 Intro & project overview 01:00 Why build a transcript tool 02:30 Manual process vs. automation 04:00 First script to download transcripts 06:00 Turning script into Chrome extension 08:00 Debugging & fixing early versions 10:00 Adding transcript cleanup & AI prompt 12:00 Setting up files, icons, and loading extension 14:00 Demo of working prototype 15:30 Next steps & wrap-up ──────────────────── 🌐 Site: https://eamonncottrell.com 📇 LinkedIn: https://linkedin.com/in/eamonncottrell 🐦 X/Twitter: https://twitter.com/EamonnCottrell