IcePanel vs Structurizr (2026): which should you pick?
As of Nov 13, 2026, Structurizr grades higher than IcePanel: 2.6 against 2.0 out of 4.0.
Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA
IcePanel grades higher on ease of use. Structurizr grades higher on value for money and the free plan. They get the same grade on features and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
IcePanel
Software architecture modeling and diagramming around the C4 model
Structurizr
Open-source models-as-code tool for C4 architecture diagrams
Which one is for you
Pick IcePanel if
- Fits if your engineers document architecture in the C4 style
- Works for teams where product and engineering read the same diagrams
Look elsewhere if
- Pricey if you have several editors: $40 each a month, and $80 each on Scale
- Tight if you stay free: 1 editor and 100 model objects
- Skip it if you want a freeform whiteboard
- Watch out: the monthly-billing price couldn't be read, and Scale is listed for 20 or more editors
Pick Structurizr if
- Fits if you're a developer who keeps diagrams as code in version control
- Works for organisations that must host architecture diagrams themselves
Look elsewhere if
- Skip it if you want to drag shapes around, as it's code first
- Not for you if you don't want to learn its text language and command line
- Pricey if you want the prebuilt server: £300 a month for up to 20 users, £600 for up to 50
- Watch out: licenses are bought by contacting the vendor and are non-refundable, with prices in pounds
How we grade them
| 2.0GPAIcePanelFair | 2.6GPAStructurizrGood | |
|---|---|---|
| Value for money | D$40 per editor a month on annual billing, $80 on Scale. The whiteboard category's dearest tenth starts at $24.90. | AThe playground, local viewer and command-line export are free to download and use. Only the prebuilt server costs, at £300 a month for up to 20 users. |
| Free plan and trial | CFree for 1 editor with unlimited viewers and diagrams, but only 100 model objects. A 14-day Growth trial needs no card. | BOpen-source tools with no cap, but the prebuilt server needs a paid license, and building the open-core server yourself is up to you. A 14-day trial license is on request. |
| Features | CA shared model, C4 diagrams, flows, drafts of future designs and an API. It does the architecture job, but the free plan's 100 objects cap how much of it you get. | CModels as code, interactive diagrams, export to other formats and AI support. It does the C4 job completely, but it's a smaller job than a general whiteboard. |
| Ease of use | CNo store rating on record. You describe your systems into the model before diagrams appear. | DYou write a text language, use a command line and, for the server, host it yourself with Docker. |
| Platforms and integrations | BWeb only, with an API and webhooks for connecting it to other tools. | BWeb playground plus a local viewer, command-line exporter and server, with PlantUML, Mermaid, S3 and Azure storage connections. |
| Best for | documenting software architecture in the C4 style | C4 architecture diagrams written as code |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: IcePanel and Structurizr. How we grade
Price against what you get
IcePanel starts at $40 a month for each person and scores 2.3 out of 4 on features, ease of use and platforms. Structurizr starts at about $401.97 a month and scores 2.0.
IcePanel scores higher and starts $361.97 a month lower. Of the other whiteboard and mind map tools on the chart, 28 score higher than IcePanel for less, and 65 score higher than Structurizr for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Structurizr is open source and self-hostable, according to its own site.
At a glance
| IcePanel | Structurizr | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $40 per editor / month, billed annually | £300 per month for up to 20 unique users, per server installation |
| Free plan | 1 editor, unlimited viewers, up to 100 model objects and unlimited diagrams. | Open-source tools: the browser playground, local viewer, CLI export and a self-built open-core server. |
| Free trial | 14-day trial of Growth, no credit card needed | 14-day trial license on request that unlocks all features |
| Web | ||
| Made by | IcePanel Technologies Inc. | Structurizr Limited |
| Price read from | icepanel.io | docs.structurizr.com |
| Checked | Nov 13, 2026 | Nov 13, 2026 |
Worth knowing
IcePanel
- The free plan stops at 100 model objects and 1 editor.
- Pricing is per editor; the pricing page shows the annual-billing figure, and the monthly-billing price could not be read.
- Scale is listed for 20 or more editors and Enterprise for 50 or more.
- It is an architecture-modeling tool, not a freeform whiteboard.
Structurizr
- Using the server through the vendor's prebuilt binaries needs a paid license; building it yourself is open core.
- Prices are published in pounds sterling and are charged by unique users per server installation.
- Licenses are bought by contacting the vendor, with payment by bank transfer or PayPal invoice, and are non-refundable.
- It is a code-driven diagramming tool, not a freeform whiteboard.
Key features
IcePanel
- Shared architecture model
- Systems, domains and connections are modeled once and reused across diagrams, so a change in the model shows up everywhere.
- C4 model diagrams
- The product is built around the C4 model for zooming from system context down to components.
- Flows
- Step-by-step flows between objects show how requests move through a system; the free plan allows 1 flow per diagram.
- Draft future designs
- Growth and above can draft future-state designs next to the current model, and record decision records.
- API and webhooks
- Growth has basic API usage; Scale adds advanced API usage and webhooks for syncing the model with other systems.
- Sharing and access
- Viewers are unlimited on every plan, and Growth adds protected share links and one SSO domain.
Structurizr
- Models as code
- Write the Structurizr DSL once and generate system context, container, component, dynamic and deployment diagrams from it.
- Interactive diagrams
- Diagrams can be zoomed, animated and embedded, and include an automatically generated key.
- Several ways to run it
- Use the browser playground, view diagrams locally, or run the self-hosted server as a Docker image or Java .war file.
- Export to other formats
- A CLI tool exports views to PlantUML, Mermaid or a static HTML site.
- AI and MCP support
- A free, open-source MCP server parses and validates DSL, exports diagrams and manages workspaces on a Structurizr server.
- Manual layout
- Diagrams use manual layout that can be adjusted in the local viewer, rather than auto-layout only.
Plans
IcePanel
Free$0
1 editor, unlimited viewers and diagrams, up to 100 model objects, 2 tag groups and 1 flow per diagram.
Growth$40
per editor / month, billed annually
Unlimited objects, overlays and flows, domains, draft future designs, basic API, decision records and 1 SSO domain.
Scale$80
per editor / month, billed annually
For 20 or more editors: audit logs, advanced API, webhooks, priority support and unlimited SSO domains.
EnterpriseCustom
For 50 or more editors: single-tenant environment, custom data residency, customer encryption keys and a custom domain.
Structurizr
Open source$0
Playground, local, export CLI and the open-core server you build yourself; you host it.
Server license, 1-20 users£300
per month, per server installation
Prebuilt server binaries with enterprise features, priced by unique users in a year; sold by quote.
Server license, 21-50 users£600
per month, per server installation
The same prebuilt server; 51-100 users is £900 and 101-250 is £1,200 a month.
Server license, 1001+ users£2,400
per month, per server installation
Largest published tier; 251-500 users is £1,500 and 501-1000 is £1,800 a month.
Common questions
Which is cheaper, IcePanel or Structurizr?
As of Nov 13, 2026, IcePanel starts at $40 per editor / month, billed annually, and Structurizr starts at £300 per month for up to 20 unique users, per server installation. One is priced for each person and the other is not, so which costs less depends on how many of you use it.
Which has a free plan, IcePanel or Structurizr?
As of Nov 13, 2026, both IcePanel and Structurizr have a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.