DiagramFlow Pricing and Plans
What this page covers
This page explains the current DiagramFlow plans, what each plan includes, and which teams should upgrade from free to Pro.
If you are brand new to DiagramFlow, start with What is DiagramFlow? or follow the Quickstart before you compare plans.
Compare plans
| Plan | Price | Best for | Included |
|---|---|---|---|
| Free | $0 | Trying DiagramFlow, personal learning, lightweight docs | 10 diagrams per month, 100 MB storage |
| Pro monthly | $12/month | Individual engineers and teams that need DiagramFlow every week | Unlimited diagrams, real-time collaboration, PNG/SVG/PDF export, version history, custom templates, priority support |
| Pro yearly | $120/year | Teams that know they will use DiagramFlow long term | Everything in Pro, billed yearly, save 17 percent compared with monthly billing |
Free plan
The free plan is designed to help you evaluate DiagramFlow without a time-consuming setup.
You can open the Playground, write diagram code, generate up to 10 diagrams per month, and store up to 100 MB of diagram data. That is usually enough to test the product, build a few architecture examples, or teach a system design concept in class.
The free plan is the right fit when you want to:
- Learn the DiagramFlow syntax
- Validate a diagrams-as-code workflow before adopting it
- Create occasional architecture diagrams without collaboration needs
Pro plan
Pro is built for engineers and architecture teams that use diagrams regularly and need more than a one-off generator.
With Pro, you get unlimited diagrams, real-time collaboration, export to PNG, SVG, and PDF, version history for keeping diagrams aligned with architecture changes, custom templates, and priority support.
That makes Pro a better fit when your diagrams are part of day-to-day engineering work instead of occasional reference material.
Pro is a strong fit for:
- Solutions architects preparing design reviews
- Platform and DevOps teams documenting infrastructure that changes often
- Engineering leads who want diagrams to stay current across onboarding, RFCs, and ADRs
- Teams that need shareable, exportable diagrams for docs and presentations
Monthly vs yearly billing
Choose monthly billing if you are still validating adoption across the team or need short-term flexibility.
Choose yearly billing if DiagramFlow is already part of your architecture workflow and you want the lower effective monthly price. The yearly Pro plan costs 12 every month.
When should you upgrade?
Upgrade from Free to Pro when one or more of these become true:
- You hit the monthly diagram limit
- You need export formats beyond the in-browser workflow
- More than one person needs to collaborate on the same diagram work
- You want version history and custom templates for repeatable architecture docs
- DiagramFlow becomes part of your regular design-review process
Frequently asked questions
Can I start on the free plan?
Yes. The free plan is the fastest way to evaluate DiagramFlow and learn the syntax before you commit to a paid workflow.
Who should choose the Pro plan?
Choose Pro if you create diagrams for real engineering work, not just one-off experiments. The biggest value comes when diagrams need to be shared, exported, reviewed, and kept current over time.
Where should I go next?
If you want to test the workflow before upgrading, continue with Quickstart. If you want a better sense of the product direction, read What is Diagram as Code? and What is DiagramFlow?.