Never lose a word. Every change, versioned automatically — in the folder you already sync.

A local-first Markdown editor with live diagram and math preview, a knowledge graph, and AI pairing. One licence, every platform.

Download — free Buy Pro

Tessamark editor showing continuous automatic git version history timeline

Every save is a commit.

Free, out of the box

Continuous automatic git history from the first keystroke — not seven days of snapshots.

Restore is free forever

Data recovery is never gated. Pro sells the visual timeline and diff, never the recovery itself.

Your folder, or your remote

Put your workspace in iCloud Drive, Dropbox, OneDrive or Google Drive and it syncs — no account, no setup. Or drive it from a git remote you host instead.

See how it works →

Live preview that keeps up

Mermaid diagrams and LaTeX math, rendered beside the markdown as you type.

Backlinks and wiki-links, free

The links themselves are free tier. The interactive knowledge graph they assemble into is Pro.

Publish to your own Ghost site

One click, from the editor.

One licence. Every platform.

macOS and iOS ship today. Windows, Linux, and Android are in progress — one purchase will cover all of them, with no per-platform upsell.

Ready when you are.

Full editor, no account, no time limit.

Download — free See pricing