Your developer memory, built into Chrome.

Cheat sheets that build themselves — and return when you search. All local. All private.

Chrome remembers the sites you’ve visited — but not what you learned there. You find the perfect fix, close the tab, and weeks later you’re searching for the same solution again.

MindStack fixes that loop. It turns Chrome into your developer memory: capturing what you learn, summarizing it with Gemini Nano, and automatically resurfacing it when you face a similar problem — all locally.

Here’s how it works: highlight a solution, and MindStack captures it. It generates a summary and smart tags using Chrome’s built-in AI, then embeds them locally for instant recall. When you Google something similar later, your own cheat sheet quietly reappears — powered by on-device embeddings.

No setup. No cloud. No rediscovery. Just Chrome that remembers.

Not a note-taking tool, a new kind of memory — personal, automatic, and seamless.

• 🎯 Automatic Capture — Highlight solutions and capture them with one click.
• 🏷️ Smart Tagging — AI-generated tags and summaries using Gemini Nano.
• 🔍 Intelligent Recall — Surfaces your saved fixes when you search for similar issues — no digging twice.
• 🔒 Fully Local — All data stored in chrome.storage.local; works offline, no cloud required.
• ✏️ Evolving Notes — Refine your notes anytime with Proofreader API assistance.
• ⚡ Instant — Client-side vector search with smooth, native animations.
• 🚀 Zero Setup — Cheat sheets that build themselves and return when you need them.

R — Reason Every developer knows the feeling: you fix a bug, feel clever for a moment… and then two weeks later you’re staring at the same Stack Overflow post again. That loop of rediscovery sparked MindStack.

E — Experience Highlight a solution. Click “Capture.” MindStack saves, summarizes, and tags it with Chrome’s on-device AI. Weeks later, it recognizes the same problem and surfaces your saved fix directly beside the search results.

C — Construction Built with React, Vite, and TypeScript under Manifest V3. MindStack uses Gemini Nano’s Prompt, Summarizer, and Proofreader APIs to generate concise tags and explanations, then embeds them locally with Xenova/all-MiniLM-L6-v2. Everything — notes, vectors, and metadata — lives in chrome.storage.local for full offline recall.

A — Artistry Subtlety was our obsession. MindStack feels like part of Chrome — not another overlay or chatbot. We refined animations, asynchronous behavior, and UI transitions to make the experience feel native and invisible.

L — Lessons Working fully client-side taught us that privacy, latency, and UX are one problem. True intelligence doesn’t need to announce itself — it just works, silently.

L — Leverage Next, we aim to make MindStack project-aware — grouping notes by repository and syncing (optionally, encrypted) with tools like Obsidian. The goal remains simple: a browser that remembers, quietly.

• Node.js ≥ 18
• pnpm
• Google Chrome (latest version)

Before installing, enable the Proofreader API:

1. Visit chrome://flags/#proofreader-api-for-gemini-nano
2. Set to Enabled
3. Click Relaunch

pnpm install
pnpm build

The extension will be built in the dist folder.

1. Open chrome://extensions/
2. Enable Developer mode
3. Click Load unpacked and select dist

1. Capture — Highlight a solution or snippet; a “Capture” button appears.
2. Process — Gemini Nano summarizes and tags it locally.
3. Store — MindStack embeds the note using local vectors and saves it in chrome.storage.local.
4. Recall — When you Google something similar, MindStack matches the query and resurfaces your cheat sheet in real time.

• React – Interface
• Vite – Build system
• TypeScript – Type safety
• Gemini Nano APIs – On-device AI (Prompt, Summarizer, Proofreader)
• Xenova/all-MiniLM-L6-v2 – Local embeddings for semantic recall
• Framer Motion – Smooth animations
• Tailwind CSS – Styling
• Chrome Manifest V3 – Extension platform

pnpm dev      # Start in development mode
pnpm build    # Build production bundle
pnpm lint     # Check code style
pnpm preview  # Preview built extension

MindStack is fully local:

• No network calls or external APIs
• All AI runs on-device with Gemini Nano
• Data stored only in Chrome’s local storage
• Works offline — private by design

• Project-aware note grouping (by repo)
• Obsidian and IDE integrations
• Advanced semantic recall
• Optional encrypted cross-device sync

MIT

Contributions are welcome! Please open an issue or pull request.

GitHub → MindStack