Application level tracing for Rust.

NLog - Flexible and Structured Logging for various .NET Platforms

iOS Debugging Tool 🚀

A debug log framework for use in Swift projects. Allows you to log details to the console (and optionally a file), just like you would have with NSLog() or print(), but with additional information, such as the date, function name, filename and line number.

C++ logging library. It is powerful, supports asynchronous low latency, extendable, light-weight, fast performing, thread and type safe and consists of many built-in features. It provides ability to write logs in your own customized format. It also provide support for logging your classes, third-party libraries, STL and third-party containers etc.

Nanolog is an extremely performant nanosecond scale logging system for C++ that exposes a simple printf-like API.

Asynchronous Low Latency C++ Logging Library

Realtime log viewer with web UI, tail -f for logs with a web interface browser.

log4cplus is a simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. It is modelled after the Java log4j API.

Structured, contextual, extensible, composable logging for Rust

📝 tslog - Universal Logger for TypeScript and JavaScript

An OkHttp interceptor which has pretty logger for request and response. +Mock support

📄The reliable, generic, fast and flexible logging framework for Android

Eliot: the logging system that tells you *why* it happened

fmtlog is a performant fmtlib-style logging library with latency in nanoseconds.

Simple, efficient logging for Rust

Bring console.log on the screen

tinylog is a lightweight logging framework for Java, Kotlin, Scala, and Android

Log4Qt - Logging for the Qt cross-platform application framework

Productivity-oriented collection of lightweight fancy stuff for Scala toolchain

Performance-aware simple logger for React-Native and Expo with namespaces, custom levels and custom transports (colored console, file writing, etc.)

Exceptionless clients for the .NET platform

The fastest logging library in the world. Built from scratch in Scala and programmatically configurable.

📑 Lightweight, configurable, extensible logging library written in Go. Support multi level, multi outputs and built-in multi file logger, buffers, clean, rotate-file handling.一个易于使用的，轻量级、可配置、可扩展的日志库。支持多个级别，输出到多文件；内置文件日志处理、自动切割、清理、压缩等增强功能

Reckless logging. Low-latency, high-throughput, asynchronous logging library for C++.

a fast and feature-rich logging library for C

Share Hash Tables With Stable Key Hints Stored In Memory Mapped Files Between Arbitrary Processes

Ruby logger that writes logstash events

A modern logging library for Javascript / Typescript that routes logs to various logging libraries, cloud providers, files, StatsD, and OpenTelemetry while providing a fluent API for specifying log messages, metadata and errors.

Ring-Log是一个高效简洁的C++异步日志， 其特点是效率高（每秒支持至少125万+日志写入）、易拓展，尤其适用于频繁写日志的场景