What is Mermaid syntax?

Mermaid is a Markdown-inspired syntax that allows you to create diagrams and visualizations using text. It is widely used by developers to keep documentation close to the code.

Do I need to know how to code to use Mermaid Viewer?

No. While you can write Mermaid code manually, the tool includes AI features that allow you to generate diagrams by simply describing them in plain English.

Which diagram types are supported?

Mermaid Viewer supports all standard Mermaid types, including flowcharts, sequence diagrams, class diagrams, state diagrams, entity relationship diagrams, and Gantt charts.

Can I export my diagrams for use in presentations?

Yes, you can export your completed diagrams as PNG or SVG files, which are compatible with PowerPoint, Keynote, and web projects.

Is there a limit to how many diagrams I can create for free?

The free tier allows for basic usage and creation, but advanced features and higher volume saving typically require a premium subscription.

Nobody owns this listing yet

Mermaid Viewer is live in the directory, but no verified owner controls the page.

Claim this listing

Free to claim · 2 minutes

Pick your launch day — Schedule a launch and compete for the daily #1 spot.
Win trophies you can embed — Rank top 3 on launch day and get an embeddable trophy.
“Featured on AI Kaptan” badge — Owner-only badge with your live upvote count.
Control what the page says — Edit copy, pricing, links and screenshots as the owner.

Unclaimed listings don't stay up forever. Listings left unclaimed are removed from the directory in periodic cleanups. When a listing goes, it goes everywhere — the tool page and every alternatives comparison it appears on, along with the rankings and backlinks that page had built up.

Verify with a work email on the domain (about 2 minutes), then post about it on LinkedIn and tag us. See everything you get

Diagrams

Freemium

Mermaid Viewer

Create, edit, and share professional Mermaid diagrams instantly. Transform text or AI prompts into flowcharts, sequence diagrams, and Gantt charts with a real-time browser-based editor.

Visit WebsiteView Alternatives

—

Rating

Reviews

Upvotes

4 months ago

Listed

Diagrams

Flowcharts

Mermaid-js

Data Visualization

Productivity

Developer Tools

AI Diagram Generator

UML

Gantt Charts

Text-to-Diagram

Tool information

Provider

Mahnaz Ghaurfar

Platforms

Web

Browser

Languages

English

Added to directory

4 months ago

Last updated

2 months ago

Rating

Not available

Pricing

Freemium

About Mermaid Viewer

What the tool does and who it's for

Mermaid Viewer is a professional online diagramming tool designed to simplify the creation, editing, and sharing of Mermaid.js diagrams. It allows users to transform plain text descriptions into complex visual charts including flowcharts, sequence diagrams, and Gantt charts. The platform features a real-time visual editor that renders code instantly, making it accessible for both developers who prefer syntax and non-technical users looking for structured visuals. With built-in AI capabilities, it helps users generate diagram code from natural language prompts, significantly reducing the learning curve for Mermaid syntax. The tool supports high-quality exports to PNG and SVG formats and provides seamless sharing options through unique URLs.

Key capabilities

Instant Mermaid rendering from text-based syntax.

AI-powered diagram generation from natural language prompts.

Live visual editor with real-time preview side-by-side with code.

Support for multiple diagram types including Flowcharts, Sequence, and Class diagrams.

High-resolution exports to SVG and PNG formats for presentations.

Quick sharing via unique URLs for collaborative review.

Clean, distraction-free interface optimized for browser use.

No mandatory account creation for basic diagram viewing and editing.

Syntax highlighting and error detection for Mermaid code.

Pricing

Freemium — plans below

Free

Basic diagram creation
Standard Mermaid syntax support
Public diagram sharing
Real-time preview

Premium

Reviews

Be the first to review Mermaid Viewer

No reviews yet

Be the first to share your experience with Mermaid Viewer.

Featured Tools

Handpicked by our team of experts

Suggest an Update

Found outdated information? Help us keep this listing accurate.

FAQ

Mermaid Viewer FAQs

Common questions about Mermaid Viewer