Building Block Software
GovStack develops technical specifications for digital Building Blocks through collaborative, expert-driven working groups. These specifications enable reusable, interoperable software solutions that help build inclusive and scalable digital public infrastructure.
GovStack is product-agnostic. Both open-source and proprietary solutions can be submitted. Listings are ordered by submission date. GovStack does not endorse any product over another.
What is Building Block Software?
Building Block Software is any solution that implements one or more GovStack Building Blocks. It ensures that digital services can be built faster, reused, and scaled across contexts.
How is Compliance Measured?
Solutions are evaluated across three areas: deployment, API standards, and requirement specifications. Compliance levels show how closely a product follows GovStack guidelines.
How to Submit Your Software
Organizations can self-assess and submit their software for inclusion in the GovStack catalog. This helps promote transparency and adoption of interoperable solutions.

An open-source, digital civil registration system designed to positively transform civil registration services in low-resource settings.

OpenSPP is an open-source, modular and highly interoperable platform for social protection offering a comprehensive management information system and dynamic registries, which can be easily adapted to a country’s needs, goals and existing systems.
The Sovereign Cloud Stack (SCS) is a European initiative that creates an open, transparent and vendor-neutral cloud ecosystem that ensures sovereignty and interoperability. The focus is on cloud technology with genuine freedom of choice: legally secure, interoperable, vendor-independent and cloud-native.

