IcePanel
Terrastruct
draw.io
LucidChart
Carbide C4
StarUML
PlantUML
Structurizr is a workspace editor that creates software architecture diagrams and documentation based on the C4 model.

Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

Which is more popular?
Based on our record, Structurizr seems to be more popular. It has been mentioned 8 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Structurizr
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| Website | structurizr.org | devfinancetools.com |
| Pricing | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Structurizr yet.
DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
What each product offers, as listed by its team.

Possible disadvantages
Walkthroughs and reviews on video.
Simon Brown: C4 Architecture Model and Structurizr
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Structurizr and DevFinanceTools. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

Structurizr builds upon “diagrams as code”, allowing you to create multiple diagrams from a single model using a number of tools and programming languages.
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Recommendations tracked on public social media and blogs since March 2021.

You are welcome! It’s a nice way of breaking down problems. You can go one step further and generate them from code using something like Structurizr (https://structurizr.org/) if you want to get fancy. Source: over 3 years ago
Regarding documentation, I created the C4 model for visualising software architecture as a way to introduce some structure into architecture diagrams, because even today most of what I see is still ad hoc boxes and arrows, with little... Source: over 3 years ago
Would love to see a comparison to structurizr, which is a higher level dsl that essentially renders to any of the other three you're comparing. Source: almost 4 years ago
Tracking DevFinanceTools since Aug 2026.
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Should you build an internal tool? Or just buy it?
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