Sequence Diagram for Mac

Create UML 2.0 style sequence diagrams using nothing more than plain text (and a sprinkling of emoji 🤓).

Use a simple text editor...

...to create beautiful sequence diagrams...

...even in the dark!

  • "The BBEdit of Sequence Diagrams'
    ★★★★★
    Simple yet powerful, this App reminds me of BBEdit! - Sequence Diagrams are so useful from sketching up a quick idea to writing detailed documentation. This app is based around a simple text editor with an easy to learn syntax that generates immediate visual feedback. I've been waiting for something like this ever since I first saw a sequence diagram written on a whiteboard. So glad somebody finally did it. The new Dark Mode feature has tipped me over the edge into leaving a review... Thank-you Mike-o-soft!
    paulstringer.
    サポートの迅速さと機能拡張が素晴らしい
    ★★★★★
    2019/02現在不具合をサポートからメールすると驚くほどの早さで修正してくれます。その上、どんどん機能が進化するという。この手のアプリを求めている人には必須のツールと言えます。
    Bakazo.
  • “On the usefulness scale this app is 11”
    ★★★★★
    Diagrams as code is my dream come true. not to put too fine a point on it, i’ll happily pay x10 or more for a version of this app that can do other types of diagrams. up to and including at least a large part of what omnigraffle does.
    Morning Fare.
    “Jeden Cent wert”
    ★★★★★
    Diese Anwendung hat bei uns sehr viel teurere Applikationen verdrängt, weil sie einfacher zu bedienen, robuster und besser versionierbar ist:* Schnell zu lernende Syntax* Übersichtliche Darstellung* Guter Export in gängige Formate (PDF, SVG, PNG)* Textbasiertes Format erlaubt perfekte Integration in Development Workflows (Git/Diff)
    Auch der Support ist sehr ansprechbar und setzt Anregungen oft schnell um.Uneingeschränkte Empfehlung!
    Kabe aus M.
  • “Your search ends here!”
    ★★★★★
    Tried numerous online solutions (expensive ones included), OmniGraffle, Lucid Charts (who charges monthly for the UML text editor option), until I finally found this little gem of an app. It helped me visualize some serious concurrency stuff and track down some hard to find issues. Another benefit is, I can check the textfile into Git as documentation alongside the code.
    larsparendt.
    “Best utility software purchased in a very long time”
    ★★★★★
    This application provides a simple and straight forward solution to a programmer's problem when it comes to thinking about object interactions. It is fast to get started with, simple to use and provides a pleasant display of a sequence diagram. I'm very happy with this product! Thanks to the developer for making it happen.
    iCode.
  • “Right on Target”
    ★★★★★
    Seldom do I use a piece of software that just seems to get it just right - everything is there, no unnecessary bells and whistles and an excellent finish to the end product. I plan to use this app a lot!
    Plinth.
    "Best app for programatically creating sequence diagrams"
    ★★★★★
    The UI is beautiful, the syntax is simple and clear and export options are extensive. I had a small bug, reported it, and app was updated on the next day. Highly recommended
    Uncle Laz.
Featured on the Mac App Store - "Apps and Games We Love Right Now" (December 2018 - February 2019), Develop:More to Explore (2021, 2022, 2023, 2024)

Privacy Policy

Sequence Diagram does not directly capture any End User data, but does make use of Microsoft's App Center - to aid in the rapid resolution of any identified instability issues.
App Center does capture some user data, which is outlined in their privacy policy.