Basevirta

Basevirta is an open-source software framework for building privacy-preserving web applications and data services. It provides a modular stack that enables developers to implement data minimization, secure multi-party computation, and verifiable computations without exposing sensitive information. The framework emphasizes interoperability with existing web stacks and cloud environments.

The name Basevirta combines base and virta, a coined term used by the project team to evoke adaptable data flows and core extensibility.

Basevirta was announced in 2023 by the Global Privacy Alliance, with an initial beta release in 2024 and a 1.0 release in 2025. The project has attracted contributors from privacy research groups and academic institutions, and it has been discussed in privacy and security research communities as a platform for building compliant data-sharing applications.

Architecture and components include a core runtime, a privacy layer for data minimization and secure computation, a computation engine, data connectors, and a user interface toolkit. It supports containerized deployment, standard web APIs, and a domain-specific language called VirtaDL for describing privacy-preserving data flows. The framework also provides an auditable execution model and a modular plugin system to extend functionality.

Key features include end-to-end encryption, zero-knowledge proof integration, selective data sharing, auditable computations, and a plugin ecosystem. Typical use cases involve health data exchange, consent-driven financial analytics, collaborative research, and regulatory reporting. Adoption remains strongest in privacy-focused projects and academic pilots, with ongoing development aimed at improving performance and easing integration with existing data infrastructures.