cd ../projects
$ cat ./answerit-ai.md

AnswerIt AI

Chrome extension that lets you snip any part of a webpage — a question, paragraph, or diagram — and get an instant AI-powered answer in seconds.

chrome extension mv3sveltesupabaselemon squeezyn8ntypescript
live demo
project.yml
role:
Solo builder
duration:
ongoing
timeline:
jun 2025
// problem
  • ›Designing a capture UX that works on any webpage — text, images, mixed layouts
  • ›Keeping LLM response latency low enough to feel instant
  • ›Shipping paid billing + subscription flow as a solo developer
// approach
  • ›Manifest V3 content scripts with a lightweight Svelte overlay for the snipping UI
  • ›Supabase for auth + usage tracking; n8n pipelines for the AI inference path
  • ›Lemon Squeezy for global, compliant checkout so I didn't have to build billing myself
// impact
  • ›Public launch at answerit.pro with a working free tier and paid plan
  • ›Architecture doubled as a reusable MV3 + Svelte shell for a companion extension (Youtubely)

AnswerIt AI

Context

A solo side project that grew into a real product. AnswerIt AI lives in the browser and closes the gap between "I have a question about this page" and "I have an answer" — no copy-paste, no tab switching, no prompt engineering.

Problem

LLMs are great at answering questions, but the friction to get a good answer from a web page is real: copy the text, open ChatGPT, paste it, re-add the context, wait. For quick look-ups that flow breaks focus entirely. Diagrams and screenshots make it worse — they're awkward to paste into text-only tools, and the model needs the surrounding context to be useful.

Approach

  • Capture UX: a snipping tool built as an MV3 content script with a Svelte overlay. Select any region — text, image, or a mix — and send it through to the answer pipeline.
  • AI pipeline: routed through n8n so I can swap models and iterate on the prompt chain without redeploying the extension.
  • Backend: Supabase handles auth, usage metering, and per-user history.
  • Monetization: Lemon Squeezy for subscription checkout — paid tier launched without wiring up Stripe + VAT compliance from scratch.

Outcome

Shipped at answerit.pro with a working free tier and a paid plan. The MV3 + Svelte shell I built for it became the reusable base for a smaller companion extension (Youtubely).

Stack notes

  • Manifest V3 + Svelte for a tiny, reactive content script surface
  • Supabase for auth, DB, and usage tracking
  • n8n as the orchestration layer for the AI pipeline
  • Lemon Squeezy for checkout and tax compliance
  • TypeScript everywhere the extension talks to itself
more case studies