Simple, transparent pricing

Free to build.
Licensed to ship.

Sandcastle is free for development, testing, and personal projects. Production deployments require a commercial license.

Community
For developers, hobbyists, and open-source projects. Full access to all features.
$0 forever
BSL-1.1 license - non-production use
  • All features included
  • All 4 sandbox backends
  • Dashboard + API
  • 118 community templates
  • Community support via GitHub
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Enterprise
For organizations that need custom terms, SLA, and dedicated support.
Custom
Annual contract, volume pricing
  • Everything in Pro
  • Unlimited team members
  • Priority support (24h SLA)
  • Custom license terms
  • Onboarding + architecture review
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Feature comparison

All plans include the full Sandcastle platform. Paid plans add production rights and support.

Feature Community Pro Enterprise
Workflow engine + DAG executor
Dashboard + REST API
All sandbox backends (E2B, Docker, CF, Local)
53 tool integrations
Policy engine + PII redaction
Community templates (118)
Production deployment rights
Team members - Up to 10 Unlimited
Support GitHub Issues Email (48h) Priority (24h SLA)
Commercial invoice
Custom license terms
Onboarding + architecture review

Common questions

Everything you need to know about Sandcastle licensing.

What counts as "production use"?

Any deployment that serves real users, processes real data, or runs as part of a business operation. Internal tools used by your team for day-to-day work also count as production.

Can I use it for free during development?

Yes. The Community plan covers local development, testing, CI/CD pipelines, demos, prototypes, personal projects, and open-source contributions. No restrictions.

What happens after the BSL Change Date (2030)?

The license automatically converts to Apache 2.0. After that date, all versions released before it become fully open source with no production restrictions.

Is there a free tier for startups?

If you're a bootstrapped startup with fewer than 5 people and under $100k ARR, reach out - we offer discounted or free production licenses on a case-by-case basis.

Do I need a license per server?

No. The Pro license covers your entire team (up to 10 members) regardless of how many servers or instances you run. Enterprise is unlimited.

Can I modify the source code?

Yes. All plans allow you to modify, fork, and create derivative works. Your modifications remain under BSL-1.1 terms (or Apache 2.0 after 2030).

How do I get an invoice for my company?

Pro and Enterprise plans include commercial invoices. Email tom@pflanzer.cz with your company details and we'll send a proper invoice.

What if I need custom terms?

Enterprise plan includes custom license agreements. If you need specific clauses (indemnification, data processing, SLA), we can work with your legal team.

Ready to ship?

Start building for free today. When you're ready for production, we'll get you licensed in minutes.