Simon Brown

Creator of the C4 model for visualising software architecture and Structurizr | Author of “The C4 Model” (O’Reilly, released summer 2026)

[Simon Brown @simonbrown]

My C4 model book is complete and printed copies should start appearing in a few weeks! 🎉

[Leanpub @leanpub]

Software Architecture for Developers by Simon Brown is on sale on Leanpub! Its suggested price is $25.00; get it for $12.00 with this coupon: https://t.co/QWm4fj4K5U @simonbrown #software #software_architecture

[Findy Tools ファインディ【公式】 @findy_tools]

11/26・27開催の「アーキテクチャConference 2026」にて基調講演で来日登壇いただくSimon Brown氏の「The C4 Model」の日本語版発売日が決定👏
本イベントではオライリー・ジャパン様の書籍販売会も予定していますので、お楽しみに！
#アーキテクチャcon_findy

[O'Reilly Japan @oreilly_japan]

ファインディさん主催の「アーキテクチャConference 2026」(11/26、27開催)の詳細についてはこちらをご覧ください！
レジェンド・Martin Fowler氏や、『ドメイン駆動設計をはじめよう』著者のVlad Khononov氏も登壇予定です！ #アーキテクチャcon_findy
https://t.co/or1bQCtjNS

[O'Reilly Japan @oreilly_japan]

12/2(水)発売予定の新刊『C4モデル ―ソフトウェアアーキテクチャを可視化するジェネリックでシンプルな図解のテクニック』の情報をAmazonおよび楽天ブックスで公開開始しました！
著者のSimon Brownは11/26、27開催の「アーキテクチャConference 2026」で来日、登壇予定です！
https://t.co/nDsNBjbBYy

[Vishwanath Patil @patilvishi]

Anyone here experienced with the C4 Model?

I am currently exploring it and building a C4 architecture for our entire product ecosystem.

I am particularly interested in how others approach:
- System Context
- Container diagrams
- Component diagrams
- Keeping architecture docs maintainable as the product evolves

If you have used C4 in a real production environment, I would love to hear what worked well for you and what you would do differently. ..

[Archyl @archyl_com]

Structurizr Workspaces Split Across Files Now Import Into Archyl https://t.co/ash5ac0ws9

[jos @neolimenodev]

Hey, I had this idea a while ago

What if creating C4 software diagrams felt as easy as using a visual editor, while still generating Mermaid or Structurizr DSL?

The early public beta is now live.
Feedback is welcome ;)

Try it out: https://t.co/jx3M3wDACW

#SoftwareArchitecture

[dev2next @dev2next]

Still relying on confusing architecture diagrams? 🏗️

Attend @simonbrown hands-on workshop to learn why most diagrams fail, how to fix them, and how the C4 model can help you create clearer views of your software systems.

🔗 https://t.co/pIbghU4WLk

🎟️ https://t.co/CRedsRv65s

[Simon Brown @simonbrown]

From Reddit: "I wanted my agent to draw architecture diagrams for me. Mermaid and PlantUML both had me arguing with a layout engine about where a box goes, and with C4 I spent more time on modeling questions (is this thing a container or a component) than on the system I was trying to describe."

1. I also dislike automatic layout, which is why Structurizr was designed with manual layout as the default approach.

2. Creating a common language is exactly the value that C4 brings to teams. Skip this step at your peril!

[Simon Brown @simonbrown]

A final reminder that the Structurizr cloud service will be shutdown at the end of September - please export your workspaces before then if you would like to retain them.

Migrating to the new Structurizr local (Lite equivalent ... https://t.co/2X4pCfmWi3) or server (on-premises installation equivalent ... https://t.co/36RDqtN34r) tooling is the recommended migration path, but there are a number of other community tools available (https://t.co/bRLI6OxGDD) that can render Structurizr workspaces.

[Findy Tools ファインディ【公式】 @findy_tools]

／
「アーキテクチャConference 2026」特設サイト公開！
＼
今年も開催決定！11/26(木)・27(金) 羽田開催✈ #アーキテクチャcon_findy
🌟事前告知でも話題沸騰だったマーティンファウラー氏の来日講演は両日対談形式で実現！
🌟対談には「ドメイン駆動設計をはじめよう」著者Vlad Khononov氏、クレディセゾンCTO小野氏が登場
🌟Vlad Khononov氏は単独基調講演も実施
🌟「C4モデル」考案者 Simon Brown氏の来日登壇決定！
その他豪華特別登壇者は特設サイトをチェック！

▼お申し込みはこちらから
https://t.co/5Mv2uqRGAu

[Simon Brown @simonbrown]

I've had my copies for a few weeks now, and it looks like orders are being shipped with more regularity now. 🎉

I hope you find the book useful!

[Simon Brown @simonbrown]

🙈 … yup, no need to look at the code any more, I’m sure it will be fine.

(that was a joke, BTW)

[David Flanagan @rawkode]

Why are coding agents and harnesses all trying to show us diffs?

Show me C4 diagrams, test scores, and BBD scenarios.

Code is dead.

[Lili @lilianakastilio]

What is everyone using to automatically generate C4 diagrams from your architecture components? Manually curating architecture diagrams is not it

[dev2next @dev2next]

In the pursuit of agility, have teams abandoned software design altogether? 🏗️

In his #dev2next keynote, @simonbrown explores why architectural thinking and upfront design still matter, helping teams avoid costly rework and move faster.

🔗 https://t.co/My5vKIhR9S

[GOTO @GOTOcon]

@simonbrown and his C4 Model:

*Draw context and containers, mostly leave the rest
*The deeper levels go stale with every commit
*What matters is getting everyone to agree what the words mean

#GOTOpodcast episode with Susanne Kaiser out now: https://t.co/De2ByiFpUY

[Badr Bellaj @BadrBellaj]

Q for devs: anyone used C4 model before?

[dev2next @dev2next]

Still relying on confusing architecture diagrams? 🏗️

Attend @simonbrown's hands-on workshop to learn why most diagrams fail, how to fix them, and how the C4 model can help you create clearer views of your software systems.

🔗 https://t.co/pIbghU4WLk

🎟️ https://t.co/EcZgQVkg8o

[Shroff Publishers @shroffpub]

🏗️ Design software with clarity!
📘 The C4 Model by @simonbrown teaches Context, Container, Component & Code diagrams to simplify architecture, improve collaboration, and communicate better.
#C4Model #SoftwareArchitecture #SystemDesign #OReilly #Developers

[GOTO @GOTOcon]

Your architecture diagrams have unlabeled arrows, mystery boxes & 12 different shades of blue. Nobody knows what any of it means.

@simonbrown wrote the book that helps & Susanne Kaiser asked him everything you need to know about it.

GOTO Book Club 👇
https://t.co/V2GCVILcP9