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MarkChart - Mermaid Editor

MarkChart - Mermaid Editor

Markdown diagrams

12 ratings
59 reviews
#113 in top-grossing Developer Tools
📊 Productivity
🛠️ Developer Tools
Free
In-App Purchases

Details

  • Released
  • Updated
  • January 30, 2024
  • July 9, 2026

Features

Developer

Alexandre Colucci
✨Promote your app ✨
MarkChart - Mermaid Editor screenshot #1 for iPhone
MarkChart - Mermaid Editor screenshot #2 for iPhone
MarkChart - Mermaid Editor screenshot #3 for iPhone
MarkChart - Mermaid Editor screenshot #4 for iPhone
MarkChart - Mermaid Editor screenshot #5 for iPhone
MarkChart - Mermaid Editor screenshot #6 for iPhone
iphone
ipad
🧾$12.99
In-App Purchase↘︎
📉no. 113
Charts↘︎
⭐59
Reviews↘︎
📝4+ tags
Tags↘︎
❓5 answered
FAQ↘︎
📦~ in 2 weeks
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app allows you to easily create and preview diagrams using a Markdown-inspired text syntax. It offers templates for various diagram types and supports automatic updates when used with external editors. Export your creations to common image formats.

✓Mermaid diagram editing
✓Real-time preview
✓Built-in templates
✓Automatic updates
✓Export to PDF, PNG, SVG
✓Syntax highlighting
✓Dark Mode support
Show original description

What's New in MarkChart

4.1

July 9, 2026

- Added keyboard tools to the editor - Added support for the Cynefin framework - Added support for Donut chart diagrams - Added support for Railroad diagrams - Added support for Swimlane diagrams - Improved support for TreeView diagrams - Improved the visual editor - Improved SVG export compatibility with third-party applications - Bug fixes and performance improvements If you’re happy with the app, please rate it, or even leave a review. This is a great way to help!

More
8

In-App Purchases

$12.99

MarkChart Pro

Unlock All Features

Charts

Top Grossing

📉 113-5

Developer Tools

This app dropped -5 positions in Developer Tools chart.

Last updated on July 25, 2026.

Top Free

📉 169-14

Developer Tools

This app dropped -14 positions in Developer Tools chart.

Last updated on July 25, 2026.

User reviews

Most RecentHighest RatedLowest Rated

업데이트 이후 느려졌어요

작성된 코드의 Redering 때문인지, 코드작성시 지연현상이 있습니다.
소프트미누소프트미누

Last update (8.1) broke it for me

I can’t open complex diagrams anymore after the last update. When I do (after the app passes the loading phase), I can’t export to PNG. The button is grayed out. Trying to share via AirDrop also doesn’t work. 8.0 was working fine.
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Response from developer

We’re sorry to hear you’ve had this experience. We’d like to better understand what went wrong so we can resolve the issue. Please feel free to reach out to us anytime at support@markchart.app – Alex

Great product

I’m enjoying Markchart, it’s simplicity of use is a plus. Full mermaid markdown language support for all diagram styles. Syntax checking and error text a great feature. One of Payment for Pro definitely worth the cost. Inline help and syntax guide extremely useful.
YakfatYakfat

Almost perfect

This tool works great and would be perfect with just some UX tweaks to allow zooming and dragging when using a mouse.
TerminautTerminaut

More of a Mermaid Viewer than an Editor

As far as I can tell it allows you to edit the Mermaid text in one pane, and see the results in another. Not any different from editing the mermaid text in your favorite editor and then firing up a viewer in another window.
Michael CzeizpergerMichael Czeizperger
See 54 more reviews

Developer apps

Clatters
Clatters

by Alexandre Colucci

📊 Productivity

(9)

Free
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FAQ

What is MarkChart?

MarkChart is an application designed for creating and previewing diagrams using Mermaid, a Markdown-inspired text syntax. It allows you to generate various diagram types like sequence diagrams, state diagrams, and flowcharts directly from text.

What are the key features of MarkChart?

Key features include an intuitive editor for creating diagrams, real-time previewing, pre-built templates for quick diagram generation, automatic updates when used with external editors, syntax highlighting for better readability, and the ability to export diagrams to PDF, PNG, and SVG formats.

Is MarkChart free to use?

The app offers a free version with core functionality. There is an optional one-time purchase called MarkChart Pro to support development and unlock additional benefits, though specific features unlocked by Pro are not detailed in the description.

What devices is MarkChart compatible with?

MarkChart is optimized for iOS and iPadOS devices. It also includes support for Dark Mode, ensuring a comfortable viewing experience across different lighting conditions.

How can I use MarkChart with external editors?

You can use MarkChart in conjunction with your preferred external text editor. The app is designed to automatically update the rendered diagrams whenever you make changes to the corresponding text files, streamlining your workflow.