Open-source alternatives to Loguru

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

Zerolog is a structured logging library for Go designed for high-performance event capture and observability. It focuses on generating machine-readable JSON output while minimizing memory overhead through zero-allocation buffer encoding and strongly-typed field validation. The library distinguishes itself by providing a chainable, context-aware interface that allows developers to bind trace identifiers and metadata directly to request lifecycles. It supports complex diagnostic workflows by enabling independent logger instances, custom output routing to multiple concurrent destinations, and ev

snacks.nvim is a comprehensive collection of quality-of-life plugins and utilities designed to extend the core functionality of Neovim. It serves as a multi-purpose toolkit providing a UI framework, navigation enhancements, and integrations with external services. The project distinguishes itself by combining a wide array of specialized tools into a single suite, including a picker-based file explorer, a deep GitHub integration for managing issues and pull requests, and a set of development utilities for profiling Lua performance and inspecting code execution. Its broader capability surface

Logging, distilled

Logging packages for Go

Simple Logger for Android

Simple logger for Go programs. Allows custom formats for messages.

Rolling writer is an IO util for auto rolling write in go.

Tamper-evident audit log for Go: an append-only, hash-chained, optionally Ed25519-signed log/slog handler, with offline logx verify. Built on the standard library, zero third-party dependencies. Also a full slog toolkit (colored output, JSON, rotation, fan-out, CLI).

Minimalistic logging library for Go.

Dear Log4j community,

Temperature and Humidity Logger using SHT15 written in Python 3 (MicroPython for the PyBoard 1.1).

io.Writer implementation using logrus logger managed by soy-programador

Colorful CLI logger

Very fast synchronous and asynchronous C++17 logging library

An golang log lib, supports tracking and level, wrap by standard log lib

Seelog is a native Go logging library that provides flexible asynchronous dispatching, filtering, and formatting.

A tiny debug logging tool. Ideal for CLI tools and command applications. Inspired by https://github.com/visionmedia/debug

CocoaLumberjack is a logging framework designed for Apple platforms, providing a system for capturing, filtering, and managing diagnostic messages within mobile and desktop applications. It serves as a tool for monitoring software health and troubleshooting runtime issues by recording application events across various severity levels. The framework utilizes a modular architecture that allows developers to define custom log levels and route diagnostic output to multiple concurrent destinations, including the system console, local files, and remote servers. It incorporates an asynchronous pipel

go-spew is a deep inspection library and debugging utility for Go. It functions as a data structure pretty printer that renders complex, nested types into human-readable strings with indentation and type information. The library provides specialized capabilities for visualizing internal program states, including the ability to dump data structures with pointer addresses and map keys. It includes a configuration system to adjust printing behavior, such as limiting recursion depth and setting indentation. The tool uses reflection-based type inspection and recursive tree traversal to handle nes

Loguru is a Python logging library and thread-safe framework designed for recording system events and diagnostic messages. It functions as a structured logging tool that can serialize messages into JSON strings with metadata for automated parsing and analysis. The library includes a specialized exception tracker that captures unhandled crashes across main and background threads, rendering detailed stack traces that include local variable values. It further distinguishes itself through a unified routing pipeline that can intercept messages from the standard library logging module and dispatch

Timberjack is a Go log rolling library with support for size-based, time-based, and manual rotation.

Here is a class for sending an exception with stacktrace from your micropython instance to Sentry.

This project is an application performance monitoring tool and JVM metrics library designed to measure workload behavior and export performance data to external monitoring databases. It serves as an instrumentation toolkit for tracking resource usage and internal runtime behavior within a Java execution environment. The system focuses on application performance measurement and JVM application monitoring, specifically tracking system health and runtime resource analysis to identify bottlenecks and stability issues. It provides a mechanism for external metrics export, sending captured data to t

Easy to use - simple API, works out of the box - Advanced filtering and log levels per topic or output - Thread-safety via external locking injection - Customization - only data you need - Extensible - add your own features via public API, set of predefined extensions - Support for embedded…