Commercial license - Mandatory for companies over 1 million USD gross revenue.

License covers all 4 mayor DBs and is annual (1, 2 or 4 years).
First month free for testing; Discount on longer period: 10% for 2 years, 20% for 4 y.

Pricing TIERS - depends on total number of developers in a company:
(Progressive model - proportional to the value customer gets. Reseller discount 5%)


$800 / year
or B1 mBTC

  • 1 - 5 developers


$1,400 / year
or B2 mBTC

  • 6 - 20 developers


$2,400 / year
or B3 mBTC

  • 21 - 50 developers

Have any Questions? Mail as at:

Payment methods: Bank Wire-Transfer or Debit/Credit-Card (using wise). [GreenBack]
(companies from eurozone countries are invoiced in €)
Bitcoin also accepted (Base or Lightning) - extra 12% (21T) Discount with BTC. {OrangeForward}
(OpenSource Money for OS projects)


Only need an Invoice and Payment instruction? Click on tier or select on Form:

GITHUB > 3 000 stars

NUGET > 30 000 000 downloads

Endorsed by Microsoft

Users Comments


* Licensed under Dual License (cFOSS conditionallyFree OSS - permissive license type)
cF as a solution to OpenSource funding - middle ground between Free (of charge) and Free/Libre camps.
If you do not meet criteria for free usage with Community license then you have to buy commercial one.
If eligible for gratis version but still want to help development and have active support, consider purchasing Starter Lic.
Library does not collect any data and is completely self–contained, no external connections (Privacy Policy).

Take a look at our other .Net packages (most are fully free - MIT):

Name Description
2 EFCore UtilExtensions EF Core Custom Annotations and AuditInfo
3 EFCore FluentApiToAnnotation Converting FluentApi configuration to Annotations
4 FixedWidthParserWriter Reading & Writing fixed-width/flat data files
5 CsCodeGenerator C# code generation based on Classes and elements
6 CsCodeExample Examples of C# code in form of a simple tutorial

Frequently Asked Questions