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Mermaid Alternatives
Similar projects and alternatives to mermaid
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Civic Auth
Auth in Less Than 5 Minutes. Civic Auth comes with multiple SSO options, optional embedded wallets, and user management — all implemented with just a few lines of code. Start building today.
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SurveyJS
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Add the SurveyJS white-label form builder to your JavaScript app (React/Angular/Vue3). Build complex JSON forms without coding. Fully customizable, works with any backend, perfect for data-heavy apps. Learn more.
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markwhen
Make a cascading timeline from markdown-like text. Supports simple American/European date styles, ISO8601, images, links, locations, and more.
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text-to-diagram-site
Compare syntax, layouts, outputs between languages for generating diagrams with text.
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d2-playground
An online runner to play, learn, and create with D2, the modern diagram scripting language that turns text to diagrams.
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C4-PlantUML
C4-PlantUML combines the benefits of PlantUML and the C4 model for providing a simple way of describing and communicate software architectures
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better mermaid alternative or higher similarity.
mermaid discussion
mermaid reviews and mentions
Posts with mentions or reviews of mermaid.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-04-02.
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Show HN: Mermaid Chart VS Code Plugin: Mermaid.js Diagrams in Visual Studio Code
It's worth pointing out that mermaidchart.com is NOT the official Mermaid project (https://mermaid.js.org/).
They're a for-profit company using the Mermaid name.
This creates a lot of confusion whenever the name comes up, which I suspect is deliberate.
- Ask HN: Simplest way to productize my graph layout algo?
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Ask HN: What do you use to create diagrams?
I like Mermaid[^1], but can’t be bothered to learn the syntax. So, most of the time, I ask LLMs to generate the scaffolding and work from that.
For freehand drawing, to me, nothing beats Excalidraw[^2]. I use it for pretty much everything—from system design work to planning a project and explaining a concept. Such a wonderful tool from the Czech Republic.
[^1]: https://mermaid.js.org/
[^2]: https://excalidraw.com/
- Codez votre PPT avec Slidev !
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7 insanely fast dev tools to build, deploy, and move on ⚡🔥
Mermaid is an open-source JavaScript library that allows users to generate diagrams and charts from plain text in a simple and intuitive way. Using a Markdown-like syntax, it enables the creation of flowcharts, sequence diagrams, Gantt charts, and more, directly within documentation or code. Its main advantage** lies in its ease of integration and ability to automate visual creation, making it an ideal tool for developers and technical teams looking to add charts easily.
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Mindmap Generator: How to Draw SVG-Based Graphs with AI-Generated Text and Images Using the Agent Approach
Libraries for generating mindmaps from tree-structured text, such as Mermaid and Pintora, are well-known. However, Mermaid does not work on Node.js, and Pintora, which uses native code, is difficult to run as a serverless function. Therefore, I had to write a Web API from scratch to generate SVG diagrams of mindmaps from text.
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Show HN: GUI for Editing Mermaid Class Diagrams
I think there are two slightly different issues here!
1. SVGs generated by Mermaid use the SVG 2 features, but other than browsers, most libraries only support SVG 1.1 features, i.e. <https://github.com/mermaid-js/mermaid/issues/2102>, which is what the other comment mentioned.
2. Mermaid requires a browser layout engine to render the diagrams (your issue), i.e. <https://github.com/mermaid-js/mermaid/issues/3650>. This is something I also really want to fix (I maintain the [`mermaid-js/mermaid-cli`][1] project and we need to use Puppeteer/Headless Chrome to render mermaid diagrams, which isn't ideal.) However, I don't think this would be easy, since we'd need a browserless tool that supports a browser-like layout engine (although I'm hoping that [Servo][2] might eventually be able to support it).
And if you do want to do headless renders of Mermaid diagrams, I'd recommend using (or adapting, since the code is all MIT licensed and I'm not aware of one that uses Selenium):
- <https://github.com/mermaid-js/mermaid-cli>, which uses Puppeteer as the headless browser API.
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My 2024 review
My "Documentation as Code" series took an unexpected turn. While I initially was a Plantuml advocate, I found myself gravitating more and more towards Mermaid charts (also after having to write some ADRs where, of course, I've added some diagrams). Its seamless integration with GitHub - automatic rendering in Markdown documents 😎 - proved to be a killer feature.
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5 Signs You’ve Built a Secretly Bad Architecture (And How to Fix It)
Good architecture prioritizes transparency and understanding. Tools such as vFunction or Dash0 can bring your architecture out of the shadows and into the light. Both of these offer architectural observability capabilities that help visualize your codebase, revealing service boundaries, interdependencies, and areas of inefficiency. With vFunction, teams can document complex microservices in real time, making it easier to spot bugs and bringing architecture-as-code to life with support for tools like Mermaid for sequence diagrams and automatically validating the actual architecture against manually created C4 diagrams for system modeling.
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AI Diagramming Tools for Developers
With the rise of AI-powered tools, creating these diagrams has never been easier. In this post, I evaluate some of the most popular AI-enabled diagramming tools, including Miro, Excalidraw, Figma's FigJam, ChatGPT (with Mermaid). My goal is to see how they perform when tasked with real-world developer scenarios like sequence diagrams or database ERDs.
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A note from our sponsor - InfluxDB
www.influxdata.com | 14 May 2025
Stats
Basic mermaid repo stats
158
79,145
9.9
2 days ago
knsv/mermaid is an open source project licensed under MIT License which is an OSI approved license.
mermaid is marked as "self-hosted". This means that it can be used as a standalone application on its own.
The primary programming language of mermaid is TypeScript.
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Review ★★★★☆ 8/10
Great, especially if you can find it already embedded in an app like Obsidian. I usually want to use this for quick standalone document creation, but the standalone options aren't great.