logbxr

Logbxr is a cross-platform, open-source logging library designed for high-throughput applications and distributed systems. It offers a unified API for emitting structured logs and supports pluggable backends, enabling developers to direct log data to files, consoles, network endpoints, or external log-management services. The library emphasizes low overhead, safety in concurrent environments, and easy integration with application code.

Core features include asynchronous, non-blocking emission, multi-thread safety, and structured logging in JSON or key-value formats. It provides configurable log levels, filtering rules, and sampling to control data volume. Contextual metadata such as trace and span identifiers can be attached to logs, and log messages can be enriched through processors that modify or redact fields before delivery.

Logbxr uses a modular architecture with a core API, formatters, and sinks. A central router directs records to configured backends, while formatters decide the serialized representation. Sinks implement transport mechanisms, with support for console, file, syslog, HTTP endpoints, and message queues. The system supports runtime reconfiguration and, in optimized builds, low-alloc paths for performance.

It is designed to be accessible from multiple languages via bindings or native integrations, including C, C++, Rust, Python, and Go. Adopters may integrate Logbxr into microservices, server agents, or telemetry pipelines and combine it with log-management platforms for centralized observability.

Logbxr originated as an open-source project in the early 2020s, developed by a community of contributors to address scalability, consistency, and interoperability of logging across heterogeneous stacks. It is governed by community guidelines and distributed under an open license.