I built an open-source Gamified Learning Platform & AI Debugging Extension for n8n

Built with n8n
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Hey everyone! :waving_hand:

I’ve been working on a side project called n8n Mastery. It’s a completely free platform designed to help newcomers (and advanced users) debug tricky payloads and learn n8n through gamified challenges.

It includes an open-source Chrome Extension that injects a “Sensei AI” (powered by Gemini) directly into your n8n canvas to spot syntax errors and suggest fixes on the fly!

You can try it live here: https://n8n-sensei-app-nu.vercel.app/

I am looking for a few Beta Testers from the community to play around with it and give me some harsh feedback before I add more features. (Early testers get an exclusive “Cyber Ronin” rank on the platform! :ninja:)

Let me know what you think!

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Quick Update! :rocket:

Thanks to some great initial feedback from this community, the project has officially moved out of the early prototype phase!

Since I can’t edit the original post above, here are a few big updates today:

  1. New Home: We now have a dedicated, official domain! Please use https://sensein8n.app moving forward (the old Vercel link will redirect you soon).

  2. Demo Video: A lot of people asked how the Chrome extension actually interacts with the canvas. I just recorded a quick 2-minute video showing the AI Sensei diagnosing and fixing a payload error on the fly. You can check it out here: https://youtu.be/vnpDg86vZQ8

  3. Security Check: I recently chatted with the n8n support team regarding the architecture. I just want to reassure everyone jumping into the Open Beta – the extension processes logs locally in your browser. We explicitly never save your workflow payload data.

The Open Beta is fully live. If you manage to break the app or have ideas for new features, let me know! :ninja: