Mermaid Chart
A smarter way to create diagrams
Mermaid Chart launched on October 4, 2023 with 176 votes, #252 of 4,393 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 3 years on.
What it does
Mermaid Chart is a platform for collaborative text-based diagramming, powered by the Mermaid open-source project (61k GitHub Stars). It streamlines code documentation, enhances team workflows, and generates visualizations of complex ideas using AI.
Create diagrams, flowcharts, and documentation with Mermaid
Prompt inside the canvas, drop in a doc, or write it in code — and watch the diagram build itself. Every diagram you make keeps Mermaid's open-source roots growing. Type it, say it, or upload a doc. Mermaid goes from input to diagram before you've finished the thought. Flowchart, timeline, requirement diagram, sequence — Mermaid AI suggests the shape that fits what you're actually building. Secure access controls, trusted encryption, SOC 2 compliance, and SSO that fits your existing setup. Render in your IDE, embed in docs and wikis, or generate straight from Claude, VS Code, and Cursor through our MCP server. Co-edit live, share with one link (no login required), and turn a conversation…from mermaid.ai
Does a similar job
all alternatives →- MAMermaid ASCII Diagrams2024 · mermaid-ascii.art · ▲234
GUI for editing Mermaid class diagrams2025 · docs.mermaidchart.com · ▲230
Line9 – A Mermaid rendering engine with its own layoutAug 2026 · line9.ai · ▲87Line9 is a new rendering engine for Mermaid flowchart diagrams that aims to remove the need for manual adjustment of layout. Mermaid is a popular text-based language for describing multiple types of diagrams. Several Mermaid rendering engines already exist. Most, like the original mermaid.js, use Dagre or ELK graph drawing libraries to automatically lay out their diagrams. I’ve used Mermaid for the past four years but often recreated my flowcharts in a diagram editor so that I could modify the layout to something that better suited my needs. Use Line9 when you want an automatic flowchart…
Mermaid Open Editor 2.02025 · mermaidchart.com · ▲6A new feature from Mermaid Chart allows users to easily share text-based diagrams with others. What is Mermaid Chart? It’s an extension of open source diagramming tool Mermaid: https://mermaid.js.org. I created Mermaid to make diagramming more fun again. Mermaid Chart helps to bring this to life. With Mermaid Chart, users can easily generate a wide range of charts – flowcharts and pie charts to sequencing diagrams, user journeys, and Gantt – from simple, markdown-style code. Our new Teams feature means these users can securely share diagrams with others, opening up a clear path for…
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