Create beautiful Mermaid diagrams at the speed of thought. MarkChart gives you a focused editor, live preview, visual canvas, built-in templates, and polished exports in a native iPhone and iPad app.
Mermaid is a Markdown-inspired syntax for defining diagrams with text. Use MarkChart to create flowcharts, sequence diagrams, state diagrams, class diagrams, entity relationship diagrams, Gantt charts, timelines, mind maps, Venn diagrams, pie charts, requirement diagrams, Git graphs, user journeys, and more.
Start with a template, edit the Mermaid source with syntax highlighting, refine your diagram visually on the interactive canvas, then share it as PDF, PNG, or SVG.
CREATE BEAUTIFUL DIAGRAMS
Turn Mermaid text into polished diagrams in a focused iPhone and iPad app.
EDIT MERMAID DIAGRAMS
Create and edit your Mermaid diagrams directly in MarkChart.
THEMES AND SYNTAX HIGHLIGHTING
Choose polished themes and understand your diagram source with syntax highlighting.
VISUAL EDITING
Edit diagrams visually with the interactive canvas.
TEMPLATES
Instantly create sequence diagrams, state diagrams, flowcharts and more.
DIAGRAM TYPES
Create flowcharts, sequence diagrams, state diagrams, Venn diagrams, mind maps, timelines, Gantt charts, Git graphs, class diagrams, entity relationship diagrams, user journeys, pie charts, Sankey diagrams, XY charts, and more.
QUICK LOOK
Preview your .mmd and .mermaid files right from the Files app.
EXPORT
Easily export your diagrams to PDF, PNG, and SVG formats.
SHORTCUTS
Create automations with the Shortcuts app.
FITS RIGHT AT HOME
MarkChart is optimized for iOS and iPadOS, with Dark Mode support.
MARKCHART PRO
MarkChart Pro is an optional one-time universal purchase for iOS, iPadOS, and macOS.
Privacy Policy: https://markchart.app/privacypolicy/
Terms of use: https://markchart.app/terms/
If you have any questions or ideas, please reach out at support@markchart.app
Great tool, though not clear what version of Mermaid it supports
darahalian
This is exactly the kind of tool I was looking for that allows me to write diagrams with my text editor of choice with all its features and shortcuts that I'm used to, and see the diagram rendered immediately on saving the file. It also has some nice export options for the rendered diagrams. Overall, worth the 9 bucks for the full version.My only issue so far is that it does not specify anywhere what version of the Mermaid standard it supports. The help and FAQ link to the official Mermaid site for reference on Mermaid syntax which implies it should support everything documented there, but I have noticed it doesn't support newer features such as central connections and half arrows on sequence diagrams, and it also does not support combining aliases with participant type configuration on sequence diagrams either.It would be useful if the Mermaid version the app supports was listed somewhere (such as the FAQ or Release Notes), to make it clear what features should be expected to be supported.
Intuitive and Geared for Success
uuklanger
I am pretty jazzed. I have been wanting an app like this because Mermaid is a very handy, portable, and powerful way to visually show how something should work, be in time, perform, and flow. The challenge, similar to markdown itself, is learning the syntax. This app helps you with this by providing templates that you can start with and direct links to documentation where a specific detail is needed. For someone exploring Mermaid, these features built in to the foundation of this app are valuable. I have already learned several new things thanks to this feature. The UI is clean and easy to use. For the price it is a no brainer to get.
Works great, and easy to use. Recommended.
Progeny16
I tried a different, cheaper app, and it was useless. This app, with its $9 price tag for pro (so you can export PDFs) is well worth it — a bargain, really, because it saved me so much time. The app is easy to use, with a clean and clear user interface, and plenty of templates and custom capabilities. Recommended.
Almost there
ke4vtw
This is quite good... however, I can't seem to change my background color to white. If I use the base theme and set the background color, the setting is ignored.I'd also like the ability to set a zoom factor when exporting images. Other than that, I have absolutely no complaints. It works as advertised, is fast, and seems to be stable.Fixing those two issues will each earn back a star in the review!
Developer Response
Thank you for your feedback! We’re happy to share that in the latest version of MarkChart, PNG exports now have a transparent background by default. You can also customize the background color in the preferences. —Alex
- 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!
Version 4.1
The developer, Alexandre Colucci, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
VoiceOver
Larger Text
Dark Interface
Differentiate Without Color Alone
Information
Seller
Alexandre Colucci
Size
48.2 MB
Category
Developer Tools
Compatibility
Requires iOS 18.2 or later.
iPhone Requires iOS 18.2 or later.
iPad Requires iPadOS 18.2 or later.
Mac Requires macOS 13.5 or later.
Apple Vision Requires visionOS 2.2 or later.
Languages
English and 7 more
English, French, German, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
