About Saguinus

Saguinus is a markdown editor built around one idea: writing markdown should feel like working in a document, not staring at a wall of plain-text syntax. Writing stays in one continuous flow — there are no page breaks interrupting you as you type — while subtle page guides show where pages will fall when you print or export. Formatting renders live as you type, and underneath it all is a clean, portable .md file you can take anywhere.

Why Saguinus Exists

Saguinus started from a simple frustration.

I wanted a place to write project notes, research, documentation, and technical ideas without fighting the software I was using.

Markdown is one of the fastest and most flexible ways to capture information. It handles headings, lists, tables, code blocks, and formulas with minimal effort, and it works exceptionally well with modern AI tools. I can copy content directly into a document and continue working immediately.

The problem is that most markdown tools are designed around knowledge management systems, vaults, workspaces, and interconnected notes. When all I need is a single document, those workflows often add unnecessary complexity.

At the same time, traditional document editors handle printing and page layouts well, but they are often cumbersome for technical writing, code snippets, and markdown-based workflows.

Saguinus is built to bridge that gap.

It is a markdown-powered document editor designed for focused writing, technical notes, project planning, and research documents. Documents remain simple markdown files that you own and can store anywhere, while the editing experience is designed around clean document creation and reliable printing.

No vaults. No databases. No mandatory project structure.

Just open the application, start writing, and save your document wherever you want.

Saguinus is the tool I wanted for myself: a quiet, reliable workspace for turning ideas into structured documents.

What's there today

• A continuous writing canvas with page guides that preview where pages will break on export
• Live rendering of headings, emphasis, links, and images
• Tables, task lists, blockquotes, and code blocks
• Math support via KaTeX, with editable LaTeX source
• Clean markdown copy/paste that round-trips without surprises
• PDF export that matches the in-app page layout
• A built-in markdown guide for newcomers
• Automatic updates, so new releases reach you without effort

Where it's going

Saguinus is still early — the current focus is on polish and reliability for everyday documents: better rendering of large files, more refined styling, and small workflow improvements based on real use. Bigger ideas on the list include user-defined table styling, keyboard-driven workflows, and more customization of fonts and layout.

Saguinus is currently free during live testing. If you find it useful, donations are welcome — once the app is complete, it will move to a paid model.