Fair comparison
Archyl vs PlantUML

Legacy text-based diagramming meets modern AI-powered architecture platformPlantUML is a mature, free, text-based diagramming tool supporting UML, C4, and many other diagram types. While incredibly flexible, it was not designed for architecture management. Archyl is C4-native with AI discovery, drift detection, modern UX, and collaboration features that PlantUML cannot offer.

View pricing
archyl

21/22

of 22 compared capabilities fully covered

vs
PlantUML

3/22

of 22 compared capabilities fully covered

Counted from the comparison table on this page.

Feature by feature

How Archyl and PlantUML compare

Grouped by the jobs teams hire these tools for, so you can jump to what matters to you.

Capability

C4 Modeling

Archyl 5/5 · PlantUML 1/5

Native C4 model support

PlantUML uses C4-PlantUML library, not native

Full support
Partial

Visual drag-and-drop editor

Full support
Not available

Architecture as Code (DSL)

Full support
Full support

Modern, interactive diagram rendering

PlantUML generates static images

Full support
Not available

Interactive drill-down between C4 levels

Full support
Not available

AI & Automation

Archyl 5/5 · PlantUML 0/5

AI-powered architecture discovery from code

Full support
Not available

MCP server (191 tools for AI assistants)

Full support
Not available

Architecture drift detection & conformance scoring

Full support
Not available

DORA metrics integration

Full support
Not available

Webhooks for architecture changes

Full support
Not available

Collaboration & Governance

Archyl 6/6 · PlantUML 0/6

Architecture Change Requests (review flow)

Full support
Not available

Architecture Decision Records (ADRs)

Full support
Not available

Team collaboration & permissions

Full support
Not available

Comments & discussions on elements

Full support
Not available

Release management

Full support
Not available

Technology radar

Full support
Not available

Flexibility & Integration

Archyl 5/6 · PlantUML 2/6

UML diagram types (sequence, class, activity)

Not available
Full support

Git provider integration

Full support
Not available

Embed in Confluence, Notion, Miro

Confluence plugin available

Full support
Partial

API contracts & event channels

Full support
Not available

Export to PNG/SVG/PDF

Full support
Full support

Multi-language support (9 languages)

Full support
Not available
  • Full supportFull support
  • PartialPartial
  • Not availableNot available
The honest take

Where PlantUML shines

PlantUML has genuine strengths. If these matter most to you, it may be the better fit.

Mature and battle-tested

PlantUML has been around since 2009 and is used by millions of developers worldwide. It is stable, well-documented, and has a large community of contributors and users.

Extremely flexible diagram types

PlantUML supports UML class diagrams, sequence diagrams, activity diagrams, component diagrams, state diagrams, timing diagrams, and many more. It goes far beyond C4 into general-purpose diagramming.

Free and self-hostable

PlantUML is completely free under GPL. The server can be self-hosted, and diagrams can be generated offline using the Java JAR, Docker image, or numerous IDE plugins.

Where Archyl goes further

What you get on top of the C4 model itself.

AI-powered discovery

Discover architecture elements straight from your codebase. No manual diagramming to get started.

MCP server, 191 tools

Give Claude, Cursor and other assistants the architecture through 191 specialised MCP tools.

Drift detection

A conformance score and alerts when the code moves away from the documented architecture.

DORA metrics

Deployment frequency, lead time, change failure rate and recovery time, next to architecture health.

Webhooks

Real-time notifications to Slack, Teams or Discord when the architecture changes or drift degrades.

Nine languages

The whole platform in English, French, Spanish, German, Chinese, Japanese, Portuguese, Korean and Italian.

Switching

Moving from PlantUML to Archyl

A typical migration path, from export to a living model.

1

Identify your C4 diagrams

Review your PlantUML files and identify which use the C4-PlantUML library for architecture documentation. These are the diagrams that will benefit most from migrating to Archyl.

2

Recreate your model in Archyl

Use Archyl's visual editor or YAML DSL to recreate your C4 architecture model. The structured model approach means your architecture becomes queryable and governable, not just rendered.

3

Enhance with AI discovery

Connect your code repositories and let Archyl's AI discover architecture elements and relationships. This often reveals components and connections not captured in manual PlantUML diagrams.

4

Activate governance features

Set up drift detection, conformance rules, ADRs, and change request workflows to keep your architecture documentation in sync with your evolving codebase.

Questions teams ask before switching

Does Archyl support UML diagrams like PlantUML?

Archyl focuses on C4 architecture modeling, not general-purpose UML. For sequence diagrams, class diagrams, or activity diagrams, PlantUML remains an excellent tool. For architecture documentation specifically, Archyl offers significantly more depth with AI discovery, drift detection, and governance.

Can I import my PlantUML C4 diagrams into Archyl?

Archyl uses its own YAML-based Architecture as Code format. While direct PlantUML import is not currently available, you can quickly recreate your C4 model using the visual editor or DSL. AI discovery can also automatically identify many elements from your codebase.

PlantUML is free. Why should I consider Archyl?

Archyl offers a free Developer plan. PlantUML generates static images from text; Archyl creates a living architecture model with AI discovery, drift detection, conformance scoring, MCP server, and team collaboration. The question is whether you need diagrams or architecture management.

Is Archyl as flexible as PlantUML?

PlantUML supports dozens of diagram types beyond C4. Archyl is purpose-built for C4 architecture and adds flow diagrams, whiteboards, and documentation. For architecture work, Archyl is deeper; for general diagramming, PlantUML is broader. Many teams use both.

Free plan forever

See your own architecture in Archyl

Connect a repository or import your PlantUML model. The free plan is enough to judge for yourself.

  • No credit card
  • Set up in five minutes
  • Viewers are always free
Book a demoRead the quickstart

Archyl vs PlantUML: Architecture Tool Comparison

Compare Archyl and PlantUML for C4 architecture docs. Modern C4-native platform with AI discovery and drift detection vs legacy text-based diagramming.

Legacy text-based diagramming meets modern AI-powered architecture platform

PlantUML is a mature, free, text-based diagramming tool supporting UML, C4, and many other diagram types. While incredibly flexible, it was not designed for architecture management. Archyl is C4-native with AI discovery, drift detection, modern UX, and collaboration features that PlantUML cannot offer.

Archyl vs PlantUML: Architecture Tool Comparison

Compare Archyl and PlantUML for C4 architecture documentation. See how a modern C4-native platform with AI discovery and drift detection compares to legacy text-based diagramming.

archyl vs plantuml, plantuml alternative, C4 model comparison, architecture documentation tool, plantuml c4 alternative

Mature and battle-tested

PlantUML has been around since 2009 and is used by millions of developers worldwide. It is stable, well-documented, and has a large community of contributors and users.

Extremely flexible diagram types

PlantUML supports UML class diagrams, sequence diagrams, activity diagrams, component diagrams, state diagrams, timing diagrams, and many more. It goes far beyond C4 into general-purpose diagramming.

Free and self-hostable

PlantUML is completely free under GPL. The server can be self-hosted, and diagrams can be generated offline using the Java JAR, Docker image, or numerous IDE plugins.

Native C4 model support

PlantUML uses C4-PlantUML library, not native

Visual drag-and-drop editor

Architecture as Code (DSL)

Modern, interactive diagram rendering

PlantUML generates static images

Interactive drill-down between C4 levels

AI-powered architecture discovery from code

MCP server (191 tools for AI assistants)

Architecture drift detection & conformance scoring

DORA metrics integration

Webhooks for architecture changes

Collaboration & Governance

Architecture Change Requests (review flow)

Architecture Decision Records (ADRs)

Team collaboration & permissions

Comments & discussions on elements

Flexibility & Integration

UML diagram types (sequence, class, activity)

Git provider integration

Embed in Confluence, Notion, Miro

Confluence plugin available

API contracts & event channels

Export to PNG/SVG/PDF

Multi-language support (9 languages)

Identify your C4 diagrams

Review your PlantUML files and identify which use the C4-PlantUML library for architecture documentation. These are the diagrams that will benefit most from migrating to Archyl.

Recreate your model in Archyl

Use Archyl's visual editor or YAML DSL to recreate your C4 architecture model. The structured model approach means your architecture becomes queryable and governable, not just rendered.