Join the beta

Become an early adopter, it's absolutely free to get started.

Professional
$TBA/add-in per year

For teams building production-ready Excel add-ins.

  • Everything in Early Adopter, plus:
  • External functions
  • Remote builds - POST us your code, get back an XLL
  • 100 functions per add-in (vs 5)
  • Builds never expire
  • Signed .xll
  • Email support
  • AI coding assistance***
Coming soon
Enterprise
Custom

We'll deliver a custom solution for you.

  • Everything in Professional, plus:
  • Signed .xll with your certificate
  • xllify binary distribution to build locally or on-prem
  • Bespoke function development
  • Prioritised feature requests
  • Support hours for your project; remote meetings
  • Branded MSI installer
Coming soon

* Builds are compiled using GitHub Actions workflow minutes. While xllify is free during beta, GitHub Actions usage may incur charges depending on your GitHub plan. Free GitHub accounts include generous monthly minutes suitable for typical usage.

** Early Adopter builds expire after 3 months during the beta period to ensure users receive the latest updates and fixes. After beta, Early Adopter will become a free plan with non-expiring builds. The standard library will be extended throughout beta. Some beta features may change before general availability.

*** AI coding assistance is provided on a best-effort basis. AI can make mistakes, so please carefully review all generated code before use.