Notedown – Fast, offline markdown notes with images and AI-powered semantic search

Summary: Notedown is a lightweight markdown editor under 200 KB that supports image pasting and offline semantic search using AI embeddings. It stores notes locally by default and offers optional sync across devices without requiring cloud services, combining speed with rich functionality.

What it does

Notedown provides a browser-based markdown editor with live preview, image pasting, and offline semantic search powered by transformers.js. Notes are saved locally with optional device syncing, all in a fast-loading progressive web app.

Who it's for

It is designed for users who want a fast, minimal note-taking app with markdown formatting, offline AI search, and optional multi-device sync without cloud dependency.

Why it matters

Notedown solves the trade-off between speed and features in note apps by delivering instant startup, rich markdown support, and private semantic search without sacrificing performance or requiring installation.