Architecture Documentation Platform

Turn messy system knowledge
into crystal-clear architecture docs.

ArchDocTool helps you capture, visualize, and evolve your architecture in one place. Create living diagrams, models, and narratives your whole team can trust.

✓
Visual system maps

Zoom from organization view down to services, queues, and databases in seconds.

✓
Always up to date

Keep architecture in sync with your repos, environments, and deployments.

✓
Decisions, not just diagrams

Capture ADRs, trade-offs, and timelines so changes make sense months later.

✓
Risk-aware change

See dependencies and blast radius before you ship a risky change.

Start your first workspace

30-day free trial. Log in or register in under a minute — no long setup, just start mapping.

What you can do

Design your architecture story

  • Create system, container, and component diagrams in a consistent C4-inspired style.
  • Model environments, data flows, and integrations across teams and vendors.
  • Share curated views for onboarding, incident reviews, and design sessions.
  • Track how your architecture evolves over time without losing past context.
Log in / Register to explore
Simple pricing

Start free, bring your whole team

Every new workspace includes a 30-day free trial — no credit card required to get started.

Team workspace

Create, update, and own your architecture

£50 / month for unlimited users
for the first 12 months
  • ✓ Build and edit diagrams, models, and documentation
  • ✓ Manage systems, environments, and integrations
  • ✓ Invite readers to view shared architecture views
Start your 30-day free trial

Reader access

Browse and explore without editing

Included / in your plan
  • ✓ View diagrams, models, and curated system maps
  • ✓ Follow architecture changes and design decisions
  • ✓ Ideal for stakeholders, onboarding, and incident reviews

Add as many editors and readers as you need — no per-seat fees for the first 12 months.