Ferrite

What it does

Markdown is a useful way to write notes, prompts, and documents without getting distracted by formatting buttons. The file stays plain text, so you can still open it in thirty years.

Ferrite is a markdown editor that starts fast, uses little RAM, and does what you’d expect. Two panes: type on the left, see the result on the right. No plugin store, no sync layer, no learning curve. Mermaid diagrams work natively, so you can draw diagrams in code.

When we use it

As a scratch space to draft prompts before pasting them into Copilot or ChatGPT. Markdown is, conveniently, the format AI models themselves read most reliably, so your prompts stay portable.

Also for the draft version of an article or email before it lands in Word or Outlook. And for anyone who tried Obsidian but found it too heavy.

Good to know

• Free and open source (MIT licence)
• Runs on Mac (Intel and Apple Silicon), Windows 10+, Ubuntu 20.04+
• No account needed, no cloud, your files stay on disk
• Vim mode available if you like that