kvarkit

Kvarkit is an open-source software library that provides building blocks for creating and integrating key-value data stores within applications. The project targets a minimal, high-performance core with a modular architecture, allowing developers to tailor storage, serialization, and caching to their needs. Kvarkit is designed to be embedded in a wide range of software, from utilities and services to larger applications, with an emphasis on reducing boilerplate and accelerating common data-management tasks.

Kvarkit is organized around a core key-value API complemented by separate modules for storage backends, data encoding, and caching. The backend layer is pluggable, enabling the use of in-memory stores, on-disk formats, or remote backends through a uniform interface. A transaction layer provides atomicity for multi-step operations, while a concurrency model supports safe access in multi-threaded environments. The serialization sub-system supports multiple formats and aims to be extensible so new encodings can be added without changing business logic.

The project is built to be cross-platform and usable across different language runtimes. It focuses on compact binary representations, predictable performance, and clear error handling. Kvarkit is intended for use in embedded devices, desktop applications, and services that require embedded data stores or caching layers.

Kvarkit is maintained as an open-source project with public discussions, issue tracking, and releases on a shared repository. It follows a collaborative development model and uses an OSI-approved license.