Pricing

Choose the plan that fits your team.

Start free. Upgrade only when your architecture starts growing.

Why engineering teams switch

The change teams actually notice

Not better diagrams — a better answer to “why does the system look like this?”

We finally know why architecture changed.
Platform Lead
Architecture reviews became part of our SDLC.
Staff Engineer
Every service has ownership.
Engineering Manager
We stopped losing architecture decisions.
Principal Architect
What changes

Stop drawing architecture.
Start governing it.

Nothing about the diagram changes. Everything about how it evolves does.

Today

Architecture is a picture

  • Architecture lives in draw.io
  • Nobody reviews changes
  • No ownership
  • No governance
  • Multiple outdated copies
  • Nobody knows which version is correct
With Diagramy

Architecture is a record

  • Every change becomes a proposal
  • Every proposal is reviewed
  • Every decision is preserved
  • Every merge becomes history
  • Every architecture has ownership
  • Engineering standards become enforceable

Individuals & Open Source

Free

Model your architecture properly, from the first diagram.

$0forever
Start Building
  • Unlimited public architectures
  • 2 private architecture repositories
  • The full architecture editor
  • Multi-level architecture views
  • DSL editor, import and export
  • Community templates
  • Local history
  • Architecture validation

Consultants & Tech Leads

Pro

For professional architects and consultants.

$19per month
Architect Professionally

Everything in Free, plus

  • Unlimited private repositories
  • Never lose architectural decisions again
  • Propose changes instead of overwriting them
  • See exactly what changed, and what it affects
  • Compare and restore any previous version
  • Personal policies and custom metadata
  • Advanced search across every system
  • Priority support
Most popular

Engineering Teams

Team

Architecture review and governance.

$24per user / month
Start Reviewing Architecture

Everything in Pro, plus

  • Every architecture change is reviewed before reaching production
  • Prevent accidental architecture changes
  • Automatically enforce engineering standards
  • Multiple reviewers, approvals and requested changes
  • Every service has an owner
  • A permanent, auditable record of every decision
  • Shared templates, components and palettes
  • Organization-wide standards

No credit card required to start · Change or cancel at any time · No sales call, ever

Compare

Every plan, side by side

Designing architecture is the same on every plan. What you pay for is how it evolves.

CapabilityTeam$24
Architecture Design
Multi-level modeling
DSL editor
Templates
Custom metadata
Import and export
Architecture validationAdvanced
Repositories
Public architecturesUnlimited
Private architecturesUnlimited
Advanced search
Version Control
Architecture historyUnlimited
Branches
Semantic diff
Version compare
Restore previous versions
SnapshotsUnlimited
Collaboration
Team workspaces
MembersUnlimited
Comments and discussions
Live presence
Review Workflow
Architecture proposals
Architecture pull requests
Multiple reviewers
Request changes
Approvals
Review assignments
Governance
Protected main
Merge protection
Required approvals
Ownership rules
Merge checks
Audit history
Policies
Personal policies
Architecture policies
Organization standards
Support
Community
Priority support
Questions

Before you decide

How are Team seats counted?

Every person in the workspace who can open or review an architecture counts as one seat, including you. Roles are set per member — editors propose and review changes, viewers read and comment.

What happens to my private architectures if I downgrade?

Nothing is deleted. Private architectures beyond the Free allowance become read-only until you either make them public or upgrade again. Your history stays intact either way.

Does Free really include unlimited architectures?

Public ones, yes — unlimited, forever, with the complete editor. Free is capped at two private repositories. Diagramy never limits what you can model; the paid plans are about how architecture is reviewed and governed.

Can I change plans at any time?

Yes. Upgrades apply immediately and downgrades take effect at the end of the billing period. Everything is self-serve — there is no sales call and no annual commitment.

Do I need Team to use version history?

No. Pro gives one person the full version-control loop: branches, semantic diff, unlimited history and restore. Team is what adds other people to that loop — reviewers, approvals and protected main.

Is my architecture data private?

Private architectures are visible only to members of your workspace. Share links and embeds are opt-in per architecture and can be revoked at any time.

Software architecture deserves pull requests.

Architecture is too important to edit directly. Every architectural decision deserves a review.

Version control isn’t just for code anymore.