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Markdown is the bridge Markus is the home

If half your work already lives in markdown — specs, prompts, AGENTS.md, CLAUDE.md, notes — Markus is the editor you've been missing. Every .md on your machine, in one window. Open, search, edit, jump in a keystroke.

€39 lifetime · 14-day free trial · macOS · Windows & Linux in the works

Markus editor with multi-vault sidebar and a markdown file open Markus editor with multi-vault sidebar and a markdown file open Markus editor with multi-vault sidebar and a markdown file open Markus editor with multi-vault sidebar and a markdown file open

One Editor, wherever your Markdowns are.

The thesis

Markdown is everywhere.Markus is where it lives

Pick any folder on your disk. It appears as a vault. You're editing the real files in their real folders. Vaults are live aliases, not imports. No migration, no copy of your data, ever.

Your markdown stays where it is.

EDITING

Reading, editing, moving
finally comfortable

Slash commands, drag-and-drop blocks, a command palette at your fingertips. Write in a clean, WYSIWYG canvas. No syntax to wrestle, no clutter to ignore.

Edit directly in the preview

Click. Type. Done. No mode to toggle, no syntax to wrestle. Clean markdown under the hood, always.

Markus edit-in-preview
⌘K

for everything

Commands, files, search — one palette. Type what you need, hit enter. Hands stay on the keyboard.

Markus command palette (⌘K)
Markus in-file search (⌘F)
⌘F

search inside any file

Jump through every match. Quiet, fast, gone when you're done.

Markus quick file open (⌘P)
⌘P

to jump to any file

Fuzzy-match any filename across your vaults. Open it without ever touching the sidebar.

/

Slash to insert

Headings, lists, code blocks, tables — any block, from the keyboard, without breaking your flow.

Markus slash-command menu

Right-click. Your file, your move.

Open, rename, duplicate, move, copy path, reveal in Finder, export. No menus to hunt, no commands to remember.

Markus right-click file menu
⌘⇧F

Deep search across vaults

Full-text search powered by ripgrep. Every match, in context, across every file you own.

Markus deep search across vaults
Markus multi-tab editor

Multiple tabs Multiple files. One window.

Open several documents side by side, switch instantly.

A look that feels like yours

12 curated themes, light and dark, that follow your OS — or don't. Tune fonts, spacing, and behavior to match how you actually work.

Markus theme preview

Your document, mapped.

Every heading, one click away. The outline stays with you as you write. Your fastest way to navigate a long file.

Markus document outline

Structure frontmatter for AI needs

Edit metadata field by field — or drop into raw YAML. Stays out of your content, always in sync.

Markus frontmatter editor
AI-ADJACENT

Built for the AI needs

AGENTS.md, CLAUDE.md, prompts, specs, commands, briefs. Markus is where they live. Spot them, read them, edit them, organize them. The AI happens elsewhere, with your favorite tools. Markus is the table.

// AI WORKFLOW FILES indexed as-is
  • AGENTS.md
    ~/Code/markus
  • CLAUDE.md
    ~/.claude
  • skills/*.md
    ~/.claude/skills
  • prompts/*.md
    ~/Notes/prompts
  • specs/*.md
    ~/Work/Specs
  • rules/*.md
    ~/.cursor
The AI happens elsewhere · markus is the table // ⌥ ⌘ C copies a vault path · the rest is up to you
Markus

Bring Markus in your AI flow

Think

Draft plans and specs wherever you already think out loud.

Manage

Land them on disk. Edit, organize, retrieve in a keystroke.

Ship

Feed them to Claude Code, Cursor, or whatever ships your code.

Claude Desktop — Think
Markus — Manage
Claude Code — Ship

Markus is the only step on your disk. The chat is ephemeral. The terminal moves fast. Markus stays.

Works with Claude, ChatGPT, Cursor — your call

Local

Your files
Your machine
Your call

No accounts. No cloud. No sync forced on you. Markus reads and writes plain markdown on your disk, exactly where you put it. Nothing leaves.

0 bytes

leave your machine

0 accounts

no cloud · no telemetry

Stay local as long as you can. Not every note belongs in a repo. Not every thought needs the cloud, or to be read by a model.

Markus local vault sync panel
NO SYNC
Markus no-sync log panel

No need for sync. Your markdown already lives in your stack

If your .md files are in a git repo, you already have version control. If they're in Dropbox or iCloud, you already have sync. If they're in a backed-up folder, you already have backups. Markus doesn't add a layer. It sits on top of the one you already trust.

Markdown is the quiet language of modern dev work.
Start the 14-day trial
USE CASES

No rules.
Make it yours.

Markus adapts to how you already work. A few of the flows we've seen.

01

Scratchpad

Daily notes, task lists, quick captures. Always one keystroke away.

02

Technical docs

READMEs, ADRs, architecture notes. Live next to the code they describe.

03

Agent files

AGENTS.md, CLAUDE.md, skill definitions, prompt libraries.

04

Meeting notes

Capture, structure, retrieve. Searchable across every project.

05

Specs & briefs

Product specs, feature briefs, RFCs. Versioned via your existing git.

06

Personal knowledge

Notes, ideas, references. A calm second brain that you actually own.

VS NOTION

Not Notion. On purpose.

Markus and Notion solve different problems. Here's where Markus differs — on purpose.

Storage
Plain .md on your disk
Format
Standard Markdown, portable
Sync
Use what you have — Git, iCloud, Dropbox
Account
None
Offline
Always — it's just files
AI workflow
AGENTS.md, CLAUDE.md, your tools
Pricing
One-time license
Real-time collab
No (use Git)
Mobile
Not yet

Different problems, different tools. Pick what fits.

EARLY ACCESS

Devs in the wild.

Early users and our own team — honestly attributed.

M

Mirko

Indie developer · early user

"README, meeting notes, prompt drafts, frontmatter — all markdown, all scattered across a dozen repos. Markus is the Swiss-army knife I open for any .md, wherever it's hiding."

N

Nico

Kodyo team

"Markus sits right in the middle of my stack. I think in ChatGPT, I ship in Cursor and Claude Code, and every spec, prompt and AGENTS.md passes through Markus on the way."

S

Sabiha

Kodyo team

"Markus is the bridge between where I think and where I build. Claude chats become specs, specs become CLAUDE.md — and Markus is the calm plain-text layer in between. No lock-in."

## WHY WE BUILT THIS

Why we built Markus

At Kodyo, we work with agents, prompts, briefs, and code. Almost everything we write ends up in markdown. README files. AGENTS.md. Project specs. Meeting notes. Random scratch files. They live in a dozen folders across a dozen repos.

With Markus, no more digging through folders, loading entire codebases, or exporting from third-party apps to get to your markdown.

Nico, Sabiha, Louise & Mathieu

Markus app showing SKILL.md with vaults sidebar
FREQUENTLY ASKED

Questions, answered.

Q01

Is my data safe?

Your files never leave your machine. Markus reads and writes .md files directly on your disk. No cloud, no account, no telemetry.

Q02

Can I import my Obsidian or Notion notes?

If they're already markdown files on disk, just point Markus at the folder. If they're in Notion, export to markdown first.

Q03

What if I want to leave?

Your files stay where they always were. Plain .md files in your folders. Open them with any editor. No migration. Nothing to recover.

Q04

Does Markus have built-in AI?

No, by design. Every vault is just a folder on your disk. Markus exposes the path (⌥⌘C). The rest is up to you.

Q05

Windows or Linux version?

macOS today. Windows and Linux are in the works — one license covers all three when they land.

Q06

How much does it cost?

€39, once. A lifetime license — no subscription, ever. Free updates within the version you buy. Try it 14 days first, no card required.

More questions? Drop us a line

Markus

Try Markus.

Bring your markdown home.

Pay once. No subscription, ever. One license for every machine you own.

39€ once · lifetime
  • Yours forever, on the version you buy
  • Free updates within this version
  • One license — macOS, Windows, Linux
  • Your files, your machine — 0 accounts
Start the 14-day trial

No card required

After 14 days, buy once or walk away. No nag, no lock-in.

macOS
Windows soon
Linux soon