Fletchy Open Web App

A home for your thinking.

Notes, code, diagrams and equations.
Together in one local-first notebook.

Explore the demo Open your notebook
Fletchy on macOS showing the Parade project brief, notebooks, tags, Markdown and a launch checklist.
Fletchy for macOS · The Parade demo notebook Native app status →

From first idea to finished project.

Follow a thought through a brief, a snippet, a diagram.
The same Parade notebook, ready to explore in your browser.

The real Fletchy web app with the Parade notebooks and a rendered route-planning Mermaid diagram.
Fletchy in the browser · Live, editable demo

Write in mixed cells

Markdown for the story. Code for the details. LaTeX and Mermaid for the ideas that need another language.

Find your thread

Keep notebooks, tags and favorites close. Search your notes and cell contents, or pick up where you left off.

Keep your notes yours

Your working vault stays in this browser. Export a portable .fletchy backup or a Markdown note whenever you need one.

Explore the demo Bring your Quiver notes

No account needed. Demo edits stay separate from your personal notebook. Browser storage can be cleared; keep an exported backup.