fletchy

A modern, clean notebook for developers and creative minds.

Write in Markdown, collect code snippets, typeset math with LaTeX, and sketch diagrams with Mermaid — in one tidy place. Your data stays on your device.

Try on the Web GitHub Desktop Apps

Open source • MIT licensed • Local-first

Looking for a Quiver app alternative? Fletchy is a modern Quiver alternative — and includes an official importer.

Markdown

# Hello, world

A clean note with emphasis and code.

Code

console.log('Fletchy');

LaTeX

E = mc2

Mermaid

flowchart LR; A-->B; B-->C;

What you can do

A tidy toolkit for everyday research and building. No clutter, just the bits you need.

Multi‑format notes

Markdown for text, syntax‑highlighted code, LaTeX for math, and Mermaid diagrams.

Organize smoothly

Notebooks, tags, favorites, plus fast search & sort.

Local‑first

Data stays on your device. Export/import .fletchy files. Migration from Quiver.

Comfortable by design

Clean, responsive interface with gentle animations and a friendly color palette.

Auto‑save

Your edits are saved as you type. No drama.

Open source

MIT‑licensed and happy to accept contributions.

Start quickly

Use the web app instantly, or hack locally with a familiar Vite + React setup.

Open Web App View on GitHub 
# Clone the repository
 git clone https://github.com/Yxanu/fletchy.git
 cd fletchy

 # Install dependencies
 npm install

 # Start development server
 npm run dev

Desktop app (Beta)

Prefer native windows? Grab a build for your platform.

Windows (x64) macOS (Intel) macOS (Apple Silicon) Linux (x64)

Under the hood

Contribute

Issues, ideas, and pull requests are welcome. A good first step is to run the dev server and improve a small thing.

Issues Discussions Repository

Support Fletchy

If the app helps you stay organized, you can support ongoing development.

Ko‑fi GitHub Sponsors PayPal