How to Export Mermaid Diagrams as SVG, PNG & PDF (2026 Guide)
Published April 10, 2026 · By Marmady
Creating a diagram is only half the job. When you need to export a Mermaid diagram for a README, a technical spec, or a client presentation, the format you choose matters. This guide explains every option and shows you the fastest way to export using Marmady.
Render & export your diagram right now — free
Open Marmady Editor →Why Exporting Matters
Mermaid is great for code-first diagrams, but team members, stakeholders, and documentation tools often need a static file. Exporting your Mermaid diagram as SVG, PNG, or PDF ensures your work is portable, presentation-ready, and version-controlled alongside your docs.
Export Formats Explained
SVG
Vector-based. Infinitely scalable with zero quality loss. Best for websites, GitHub READMEs, and technical docs.
PNG
Raster image. Universally compatible. Best for Slack, Notion, slide decks, and quick sharing.
Print-ready document. Best for formal specs, proposals, and reports that need consistent page layout.
SVG vs PNG vs PDF — Comparison
| Format | Quality | File Size | Best For |
|---|---|---|---|
| SVG | Lossless (vector) | Smallest | Web, GitHub, docs |
| PNG | Good (raster) | Medium | Slack, Notion, slides |
| Print-perfect | Largest | Reports, print |
Step-by-Step Export Guide Using Marmady
Marmady is the fastest way to export any Mermaid diagram. No CLI, no headless browser, no local setup required.
- Open Marmady at marmady.vercel.app.
- Write your Mermaid code in the left-hand editor panel.
- Your diagram renders live in the preview panel on the right.
- Click the Export button in the top navigation bar.
- Choose your format: SVG, PNG, or PDF.
- Click Download — your file is saved instantly.
Why Use Marmady to Export
Ready to export your Mermaid diagram?
No setup. No signup. Just open Marmady, write your diagram, and export in one click.
Open Marmady Editor →More Mermaid Examples
Explore our library of Mermaid diagram examples to find the right format for your use case: