# MarkChart - Mermaid Editor — Mermaid diagrams > Markdown editor and previewer for generating Mermaid diagrams. (iPhone/iPad app by Alexandre Colucci.) - Source: https://appshunter.io/ios/app/markchart-mermaid-editor/id6475648822 (this page in markdown: same URL + `.md`) - Developer: [Alexandre Colucci](https://appshunter.io/developer/1478787437) - Category: Developer Tools, Productivity - Price: Free with in-app purchases - Rating: 4.20/5 from 13 App Store ratings · 65 written reviews indexed - Age rating: 4+ - Requires: iOS 18.2 · 46 MB - Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan) - Released: 2024-01-30 - Data updated: 2026-09-04 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/markchart-mermaid-editor/id6475648822/reviews.md ## What is MarkChart? 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 ## Key features - Mermaid diagram editing - Real-time preview - Built-in templates - Automatic updates - Export to PDF, PNG, SVG - Syntax highlighting - Dark Mode support ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | MarkChart Pro | $12.99 | one-time | ## Recent user reviews (10 of 65) All indexed reviews: https://appshunter.io/ios/app/markchart-mermaid-editor/id6475648822/reviews.md ### 2/5 — Promises visual editing, but not in the app *2026-08-04, version 8.3* I downloaded this app specifically to edit Mermaid diagrams visually. In the app store is says you can do that. On their web page it says “Edit visually With the interactive canvas.” But I don’t see anyway to do that. Google says: MarkChart and standard Mermaid tools are diagram-as-code systems. They generate layouts automatically from text, meaning you cannot freely drag and drop or manually move shapes around on the preview screen So, which is it? If you can’t then it’s pretty blatant false-advertising. ### 5/5 — Very good *2026-08-01, version 4.2* Amazing ### 2/5 — Kaputt *2026-07-28* Wenn man die App startet wird man in eine andere Umgebung weiter geleitet. Dort kann man zwar Vorlagen betrachten, diese aber nicht bearbeiten. Nicht überzeugt. ### 5/5 — 真的是良心软件，¥38该有的全有 *2026-07-28* Obsidian的问题是手机版本太慢，这个打开挺快的，渲染也很快，随时编辑，mermaid语法。试了好几个类似软件就这一个好用的。而且还支持macOS！！！iPad iPhone三端同步，不说了，再说像个吹子了。 ### 5/5 — Does what it says it does *2026-07-26, version 8.3* I’ve purchased pro and have only been happy with it. I use it for all my mermaid diagrams, whether the other tools I use have mermaid diagrams built in or not. This is an example of how a good, user focused, app should be written. Not only is the app great, but the developer is extremely responsive and open to feedback. ### 2/5 — Unreliable *2026-07-24, version 4.1* iOS user. If you like losing work, use this app! Otherwise find a different solution. Exiting with invalid syntax loses the file. Now it happened to me twice. ### 3/5 — 업데이트 이후 느려졌어요 *2026-07-09* 작성된 코드의 Redering 때문인지, 코드작성시 지연현상이 있습니다. ### 1/5 — Last update (8.1) broke it for me *2026-06-30* 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. **Developer response:** 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 ### 5/5 — Great product *2026-06-19, version 8.0* 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. ### 5/5 — Almost perfect *2026-06-03, version 7.5* This tool works great and would be perfect with just some UX tweaks to allow zooming and dragging when using a mouse. ## Frequently asked questions about MarkChart ### 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. ## Version history (last 5 releases) ### 4.2 — 2026-07-29 - Improved the visual editor - 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! ### 4.1 — 2026-07-09 - 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! ### 4.0 — 2026-06-23 - The new visual editor lets you customize nodes and connections in a diagram simply by tapping them. Adjust their shape, fill color, border color, text color, and text size. - Added offline Mermaid syntax documentation - Added support for Event Modeling diagrams - Added support for tidy-tree layouts for hierarchical diagrams and mindmaps - Improved support for Wardley diagrams - Improved support for Block diagrams - Improved syntax highlighting - Fixed an issue where large diagrams could be only partially exported to PDF or PNG - Fixed several issues with the SVG export - 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! ### 3.3 — 2026-04-22 - Customize your canvas with background color and grid - Create Radar, TreeView, and Wardley diagrams - MarkChart is now available in Korean - Bug fixes and improvements If you’re happy with the app, please rate it, or even leave a review. This is a great way to help! ### 3.2 — 2026-04-12 - MarkChart is now available in Japanese, Traditional Chinese and Simplified Chinese - Bug fixes and improvements If you’re happy with the app, please rate it, or even leave a review. This is a great way to help! ## More apps by Alexandre Colucci - [Clatters](https://appshunter.io/ios/app/clatters/id1480930237) All apps by Alexandre Colucci: https://appshunter.io/developer/1478787437 ## Related topics [mermaid diagram](https://appshunter.io/ios/topics/mermaid-diagram) · [mermaid chart](https://appshunter.io/ios/topics/mermaid-chart) · [memaide](https://appshunter.io/ios/topics/memaide) · [mermaid live editor](https://appshunter.io/ios/topics/mermaid-live-editor) · [diagrams.net](https://appshunter.io/ios/topics/diagrams-net) · [pie diagrams by imathics](https://appshunter.io/ios/topics/pie-diagrams-by-imathics) · [venn diagram by japality](https://appshunter.io/ios/topics/venn-diagram-by-japality) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*