Hiredis

Hiredis is designed to be lightweight with a small codebase, minimizing overhead and making it ideal for embedded systems or performance-critical applications, as highlighted in its minimalist philosophy.

Offers synchronous, asynchronous, and reply parsing APIs, allowing developers to choose between blocking calls, event-driven designs with libev/libevent, and custom parsing for language bindings.

Completely compatible with Redis Serialization Protocol version 3, including new data types like maps, sets, and push notifications, ensuring future-proofing for modern Redis features.

Supports secure connections via optional OpenSSL binding, though it requires explicit build flags and linking against separate libraries, as detailed in the SSL/TLS section.

Allows injection of custom memory allocation functions through hiredisAllocFuncs, enabling integration with specialized memory management systems without modifying core library code.