A writing environment for professionals who write a lot. Give AI agents like Claude Code, Gemini CLI, or Codex direct access to your files.
macOS now · Windows coming




ChatGPT doesn't know your project. Copilot doesn't understand your context. You're stuck copy-pasting between apps, losing your train of thought with every switch.
ChatGPT can't read your documents. You upload, re-explain, upload again.
Every copy-paste breaks your flow. Ideas slip away.
Long documents? Good luck. Chatbots weren't built for real writing work.
One window. Three panes. Zero context switching.
Three simple steps and you're ready to write.
Open the DMG file and drag RiteMark.app to your Applications folder.
Double-click RiteMark in Applications. You're ready to write.
Ritemark is a native macOS markdown editor with a built-in terminal for AI agents. It lets you write documents while running AI commands like Claude Code, Gemini CLI, or OpenAI Codex—without switching apps or copy-pasting. Files stay local on your machine.
Yes, Ritemark is completely free to download and use. No subscription, no account required, no hidden fees. Download the DMG from GitHub and start writing immediately.
Ritemark works with any CLI-based AI tool. Popular options include Claude Code (Anthropic), Gemini CLI (Google), OpenAI Codex, and Simon Willison's llm tool. The built-in terminal runs any command your regular terminal can run.
Ritemark has a built-in terminal that lets you run AI commands while writing—Obsidian requires third-party plugins and copy-pasting between apps. Obsidian excels at knowledge management with bidirectional links; Ritemark is purpose-built for AI-assisted writing workflows.
VS Code is a code editor with markdown support through extensions. Ritemark is a writing-focused app with a visual WYSIWYG editor—you see formatted text, not markdown syntax. Both have integrated terminals, but Ritemark is optimized for writing text, not coding.
Ritemark and Claude Code are perfect partners. Run Claude Code in Ritemark's built-in terminal, and it gets direct access to your documents—reading, editing, and saving files without copy-paste. Same powerful workflow developers love, now for writing text.
Currently, Ritemark is macOS-only and optimized for Apple Silicon (M1/M2/M3/M4). Windows support is on the roadmap but not yet available. The app is built as a native macOS application for best performance.
Yes. Ritemark is signed and notarized by Apple. Your files are plain markdown stored locally—nothing is sent to any server. The app works completely offline. When you use AI tools, those connect to their own APIs (Claude, Gemini, etc.), but Ritemark itself has no cloud component.
Ritemark edits Markdown (.md) files with a visual WYSIWYG editor. It also previews CSV and Excel files—you can open them in Numbers or Excel with one click. All files are stored in their original format, no proprietary lock-in.
No coding required for basic writing. The visual editor works like Word or Google Docs. If you want to use AI agents, you'll run simple commands in the built-in terminal—we provide copy-paste instructions for Claude Code, Gemini CLI, and other tools.
Ritemark is built by Productory, Estonia's leading AI training company. Founder Jarmo Tuisk created it after using Claude Code daily for development—he wanted the same workflow for writing text. Over 9,000 professionals have trained with Productory.
6 steps. Constant copying. Context lost.
2 steps. Agent sees your file. Edits in place.
Terminal built into the app. AI sees your file, makes changes, saves. You review.
Visual editor shows the final result. Markdown syntax hidden, formatted text visible.
No cloud. No account. Files are plain text on your hard drive. Works offline.
Download, open, write. No signup. No subscription.
Preview CSV and Excel files right inside RiteMark. One click opens the file in Excel or Numbers. Edit in Excel, click refresh to see updates instantly. Your AI agent can work with CSV files directly.

Specs, guides, README files. AI agent adds sections and restructures content.

Compile data, write analysis. AI agent reads your notes and generates formatted report.

Write, edit, translate. AI agent drafts content directly in your file.
Claude Code, Codex, Gemini CLI, Aider—not for code, but for text.
Consultants, trainers, product managers, bloggers
Same workflow you know from coding, now for writing
Visual desktop app with AI superpowers
No cloud lock-in, files stay on your machine

Founder & builder
I worked with Claude Code every day. I wanted the same experience for writing text. That's how Ritemark was born.
Learn more about meTips, tricks, and thoughts on writing and AI.