Powerful Markdown &
Diagrams Viewer for Mac

Work beautifully. Summarize instantly.
Export to PDF.

A native macOS app built for developers, researchers, and students who demand precision, speed, and elegance in every document.

Telescopo App Icon
Free Download
for macOS

Native Diagrams.
Beautiful Math.

Embed Mermaid diagrams and LaTeX equations directly in your Markdown — rendered natively, no external tools or browser extensions required.

Mermaid Sequence Diagram rendered natively in Telescopo for macOS

Mermaid Diagrams

Flowcharts, sequence diagrams, Gantt charts, class diagrams, and more — rendered live in your Markdown.

LaTeX mathematics with KaTeX rendering in Telescopo — Gaussian density, integrals, matrices

LaTeX Mathematics

Inline and display equations rendered with KaTeX — from simple formulas to multi-line systems and matrices.

Ask Your Document.
Get Answers.

A conversational AI assistant that reads your document and answers questions about it — summarize, extract key points, or ask anything. It remembers context per document and runs entirely on-device using Apple Intelligence. Your data never leaves your Mac.

Telescopo AI Assistant — on-device conversational AI for Markdown documents, powered by Apple Intelligence on macOS
Telescopo Navigator — document outline sidebar with scroll-spy highlighting and section jump for Markdown files on macOS

Navigate Any Document.
Instantly.

Telescopo Navigator generates a live, scrollable outline from your document's heading structure — with scroll-spy tracking and one-click jump-to-section. Works across Markdown, EPUB chapters, and code file symbols.

Theme-Aware PDF Export.
What you see is what you get.

Export your rendered Markdown — including diagrams and math — to PDF with your chosen theme preserved, in portrait or landscape. Open PDF, EPUB, SVG, CSV, and 70+ code files with full syntax highlighting.

Exported PDF opened in macOS Preview showing the same Mermaid diagram preserved

30 Handcrafted Themes.
Read, beautifully.

Every theme transforms the entire reading experience — body text, code blocks, diagrams, and toolbar. Five themes feature gently animated backgrounds.

Telescopo Light theme Telescopo Dark theme Telescopo Lamplight theme Telescopo Aurora theme Telescopo Cobalt theme Telescopo Cyberspace theme

Professional Power.
No Subscriptions Ever.

Start for free. Upgrade once, own it forever.
No subscriptions. No accounts. No tracking.

Telescopo

The Essentials
Free
  • Markdown view beautifully, with dynamic zooming, multiple windows and tabs
  • Themes support for light and dark themes, or set your own system theme
  • Dynamic Chapter Navigation navigate through your Markdown files quickly
  • Dynamic Fonts let you change your fonts on the fly, customize your reading eperience
  • In-App Search quickly search for what you need
Download for Free
RECOMMENDED

Telescopo Pro

For Power Users
$29.99 Unlock Forever
  • Everything in Free
  • Mermaid Diagrams & LaTeX — 16 diagram types and full mathematical typesetting, rendered inline
  • Telescopo Navigator — live document outline with scroll-spy and one-click jump-to-section
  • AI Assistant — conversational, per-document AI powered entirely on-device by Apple Intelligence
  • 30 Handcrafted Themes including 5 gently animated themes
  • PDF Export in portrait and landscape, preserving themes, diagrams, and math
  • 70+ File Formats — PDF, EPUB, SVG, CSV, JSON, XML, and all major code languages with syntax highlighting
Upgrade In App
FAQ

Common Questions

What is Telescopo?
Telescopo is a native macOS Markdown viewer built for developers, researchers, and students. It renders Markdown, Mermaid diagrams, and LaTeX mathematics with beautiful typography, 30 handcrafted themes, and GPU-accelerated animated backgrounds. The free version provides a polished reading experience; Telescopo Pro adds advanced features like the Navigator, AI Assistant, PDF export, and 70+ file format support.
Is Telescopo free?
Yes. Telescopo is free to download from the Mac App Store. The free version includes Markdown viewing, Light and Dark themes, Dynamic Chapter Navigation, system font customization, and in-document search. Telescopo Pro is a one-time in-app purchase of $29.99 — no subscription required.
What file formats does Telescopo support?
The free version focuses on Markdown (.md) files. Telescopo Pro adds support for 70+ additional formats including PDF, EPUB, SVG, CSV, JSON, XML, YAML, and all major programming languages (Python, Swift, JavaScript, Rust, Go, C++, and more) with full syntax highlighting.
Does Telescopo support Mermaid diagrams and LaTeX math?
Yes. Telescopo Pro renders all 16 Mermaid diagram types (flowcharts, sequence diagrams, Gantt charts, class diagrams, state diagrams, pie charts, and more) natively inline. LaTeX mathematics is rendered via KaTeX, supporting inline and display equations, matrices, multi-line systems, and complex notation — all without external tools or browser extensions.
What is the Telescopo Navigator?
The Telescopo Navigator is a live, auto-generated document outline sidebar. It extracts headings from your Markdown files to provide a scrollable table of contents with scroll-spy tracking and one-click jump-to-section navigation. It also works with EPUB chapters and code file symbols.
How does the AI Assistant work?
The AI Assistant is a conversational AI that reads your currently open document and answers questions about it. You can summarize, extract key points, or ask anything — and it remembers context per document. It runs entirely on-device using Apple Intelligence (requires Apple Silicon), so your data never leaves your Mac.
Can I export Markdown to PDF?
Yes. Telescopo Pro includes theme-aware PDF export in both portrait and landscape orientations. The exported PDF preserves your chosen theme, diagrams, math equations, code highlighting, and typography exactly as rendered in the app.
Does Telescopo require a subscription?
No. Telescopo is free to use, and Telescopo Pro is a one-time purchase of $29.99 — not a subscription. You pay once and own it forever. No accounts, no tracking, no recurring charges.