A local-first Markdown editor.

Full-screen by default. You own the bytes, you own the focus.

Try it. Right here.

No account, no install, no waiting. Type below — this is the real editor, running locally in this page.

landing_demo.md — hermes_vault
No Account Required
Plain .md Files
Distraction-Free by Default
Your Files Stay Local

Nothing but the page, until you ask for more

Full-screen by default — no toolbar, no rail, no panel until you ask for one. The sidebar opens on hover or from the command palette; open files side by side, drag tabs between panes. Checkboxes toggle on click, dates open a calendar picker, Ctrl+Click any WikiLink to jump instantly.

Start fresh or open what you already have

Open any existing local folder as a vault instantly — no migration, no conversion. Or create a new one: name it, pick a location, and start writing immediately. No example content, no setup wizard, no configuration to get through first.

Every note is a plain .md file with a small YAML header — title, status, tags. Nothing HermesMarkdown-specific, nothing you can't open in another editor or read in ten years.

hermes_vault/
daily-notes.md
project-ideas.md
ops-log-june.md
api-design.md
meeting-2026.md
Connected

Build tables without touching the mouse

A keyboard-first table editor for structuring data — cell grids you navigate and edit without touching the mouse. Not a formula engine: what you type is what gets written back to clean, auto-padded Markdown. Trigger slash commands anywhere to insert templates or format layouts instantly.

  • #todo transitions dynamically to #prog and #done via native keyboard interaction
  • Export tables to CSV — everything writes back to clean, auto-padded Markdown

Bring your own keys

Connect your Anthropic or Google Gemini API key. HermesMarkdown uses it to auto-generate scope fields, suggest related links, and improve your writing inline. Your keys stay in your browser — we never see them or proxy your requests.

No cloud. Your notes stay yours.

Nothing uploaded.

No account or sync required — your vault is a folder on your disk.

Nothing tracked.

No telemetry on note content, ever.

Nothing proprietary.

Plain .md files, readable in any editor, forever.

Close the tabs. Open a page.

A minimalist Markdown editor built for focus. Plain .md files. Runs in your browser, saves to your machine.