Super fast, header only, C++ logging library.

C++ implementation of the Google logging module.

Extremely light-weight high performance logging library for C++11 (or higher) applications. [MIT]

Portable and simple log for C++ in less than 1000 lines of code. [MPL2]

Asynchronous cross platform low latency logging library. [MIT]

A lightweight C++ logging library. [PublicDomain]

A simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. [BSD & Apache2]

Asynchronous logger with Dynamic Sinks. [PublicDomain]

A performant fmtlib-style logging library with latency in nanoseconds. [MIT]

Low-latency, high-throughput, asynchronous logging library for C++. [MIT]

Very fast synchronous and asynchronous C++17 logging library. [MIT]

A lightweight, high-performance logging system used in projects such as "Honor of Kings". [Apache-2.0]

Designed to be very modular and extensible. [Boost] website

An extremely fast plain C logging library. [MIT]

A library of C++ classes for flexible logging to files, syslog, IDSA and other destinations. [LGPL]

A very small and lightweight C++ library which you can use to add logging to your C++ applications. [Boost]

An open source and cross-platform library for high-speed sending telemetry & trace data with minimal usage of CPU and memory. [LGPL]