Open-source logging software
868 open-source libraries, tools and applications tagged logging, ranked by how closely logging is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
868 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| metachris/logzero logzero is a Python library that provides a fully configured, easy-to-use logger for Python 2 and 3, with colored console output, rotating … | 10 | 1018 | maintenance |
| yizhang7210/liang Liang is a Python library for specifying non-functional requirements like latency thresholds directly in function interfaces via decorators… | 32 | 1010 | maintenance |
| Kotlin/anko Anko is a Kotlin library that simplifies Android application development with helpers for intents, dialogs, logging, a DSL for dynamic layo… | 10 | 15761 | abandoned |
| google/glog Google's C++14 application-level logging library providing stream-based logging APIs and helper macros. The project is deprecated and will … | 10 | 7389 | abandoned |
| microsoft/FASTER FASTER is a high-performance concurrent persistent log and key-value store + cache library in C# and C++, supporting data larger than memor… | 68 | 6637 | abandoned |
| garbles/why-did-you-update A React library that logs to the console whenever a component re-renders unnecessarily, helping developers diagnose wasted renders. It is n… | 10 | 4927 | abandoned |
| abumq/easyloggingpp Easylogging++ is a single-header, MIT-licensed C++ logging library featuring asynchronous low-latency logging, custom formats, thread and t… | 10 | 3935 | abandoned |
| facebookarchive/scribe Scribe is a server for aggregating log data streamed in real time from a large number of clients, designed to be scalable and reliable. It … | 10 | 3906 | abandoned |
| litesuits/android-common LiteCommon is a lightweight collection of general-purpose Android utility and helper classes, under 50K in size. It covers logging, bitmap … | 32 | 3617 | abandoned |
| mozilla-services/heka Heka is a Go-based tool for collecting data from many sources, performing in-flight processing, and delivering results to multiple destinat… | 10 | 3394 | abandoned |
| jipegit/OSXAuditor OS X Auditor is a free Mac OS X computer forensics tool that parses and hashes system artifacts such as kernel extensions, daemons, startup… | 32 | 3130 | abandoned |
| midwayjs/pandora Pandora.js is a TypeScript-based Node.js application manager from Alibaba that provides process management, metrics collection, and OpenTra… | 10 | 3052 | abandoned |
| oklog/oklog OK Log is a distributed, coordination-free log management system for large clusters, distributed as a single static Go binary. It aggregate… | 10 | 2970 | abandoned |
| selfspy/selfspy Selfspy is a Python daemon that continuously logs user activity on the computer—keystrokes, window titles, and clipboard content—storing it… | 32 | 2495 | abandoned |
| Glimpse Glimpse is an open-source diagnostics platform for ASP.NET web applications that inspects requests in real time, profiling server-side acti… | 10 | 2310 | abandoned |
| bitstadium/HockeyKit HockeyKit is the client SDK behind HockeyApp, providing crash reporting, in-app beta updates, and usage analytics for iOS and Android apps.… | 10 | 2209 | abandoned |
| xfumihiro/ViewInspector A Gradle plugin and Android library that adds a view inspection toolbar to debug builds, showing view boundaries, margins, paddings, layeri… | 32 | 2112 | abandoned |
| wujunyang/MobileProject MobileProject is an open-source iOS project scaffold written in Objective-C that organizes an app using the MVC pattern with clearly separa… | 23 | 2019 | abandoned |
| remirobert/Dotzu Dotzu is an in-app iOS debugging tool that displays logs, network requests, device information, and crash reports via a floating bubble hea… | 10 | 1781 | abandoned |
| siglens/siglens SigLens is an open-source observability platform providing log management, metrics, and tracing in a single Go binary with zero external de… | 10 | 1780 | abandoned |
| elastic/logstash-forwarder A lightweight Go-based log shipper that collects log files locally and forwards them securely over the lumberjack protocol for processing e… | 10 | 1778 | abandoned |
| madzak/python-json-logger A Python library providing a JSON formatter for the standard Python logging module, so log records are emitted as machine-readable JSON obj… | 10 | 1759 | abandoned |
| grafana-cold-storage/agent Grafana Agent is a vendor-neutral, programmable telemetry collector built as an OpenTelemetry Collector distribution with Terraform-inspire… | 10 | 1748 | abandoned |
| desaster/kippo Kippo is a medium-interaction SSH honeypot written in Python that logs brute-force attacks and records the full shell interaction of attack… | 23 | 1713 | abandoned |
| facebookarchive/libphenom libPhenom is a C eventing framework from Facebook for building high-performance, scalable systems, offering job scheduling, buffered stream… | 10 | 1663 | abandoned |
| runsidekick/sidekick Sidekick was a live debugging and observability service that let developers collect tracepoint and logpoint data from running applications … | 32 | 1599 | abandoned |
| facebookarchive/profilo Profilo is an Android library for collecting performance traces from production builds of an app. It was developed by Facebook and is now a… | 10 | 1592 | abandoned |
| Frodo Frodo is an Android library that logs RxJava Observables and Subscribers to logcat via annotations like @RxLogObservable and @RxLogSubscrib… | 32 | 1459 | abandoned |
| evrone/quiet_assets A deprecated Ruby gem that suppresses Rails asset pipeline log messages in the development log. It is no longer needed since sprockets-rail… | 10 | 1406 | abandoned |
| sivasamyk/logtrail LogTrail is a Kibana plugin that provides a Papertrail-inspired interface to view, search, and live tail log events from multiple hosts sto… | 23 | 1391 | abandoned |
| JosephLenton/PHP-Error A single-file PHP library that replaces default PHP error output with pretty, readable full stack traces including syntax highlighting and … | 32 | 1329 | abandoned |
| ukdtom/WebTools.bundle WebTools is a collection of utilities for Plex Media Server, including an Unsupported AppStore (UAS), subtitle finder, playlist manager, an… | 23 | 1307 | abandoned |
| dcramer/django-devserver django-devserver is a drop-in replacement for Django's built-in runserver management command, adding an extendable module system for real-t… | 32 | 1263 | abandoned |
| Lede-Inc/LDNetDiagnoService_IOS An Objective-C iOS library that performs network diagnostics on a specified domain (typically a backend API host) using ping and traceroute… | 32 | 1149 | abandoned |
| BadJS badjs-report is a JavaScript library that captures frontend JS errors by overriding window.onerror and reports them to a backend endpoint, … | 23 | 1135 | abandoned |
| kolide/fleet Kolide Fleet was an open-source osquery fleet manager written in Go, providing a control server for managing and querying osquery deploymen… | 10 | 1098 | abandoned |
| brynary/rack-bug Rack::Bug is a debugging toolbar for Rack applications, implemented as Rack middleware. It injects a floating diagnostics panel into your a… | 32 | 1072 | abandoned |
| opsgenie/kubernetes-event-exporter A Go-based tool that watches Kubernetes cluster events and exports them to multiple destinations such as Opsgenie, Slack, and Elasticsearch… | 10 | 1048 | abandoned |
| dillionverma/llm.report llm.report is an open-source logging and analytics platform for the OpenAI API, letting users log ChatGPT API requests and responses, analy… | 10 | 1019 | abandoned |
| LiteLLM LiteLLM is an open‑source Python library and self‑hosted gateway that provides a single OpenAI‑compatible interface to call 100+ LLM provid… | 92 | 61456 | active |
| LiteLLM LiteLLM is an open-source AI gateway and Python SDK that provides a unified OpenAI-format interface to 100+ LLM providers (OpenAI, Anthropi… | 92 | 61456 | active |
| New API New API is a self‑hosted AI gateway written in Go that unifies access to dozens of LLM providers behind a single OpenAI‑compatible endpoint… | 88 | 48905 | active |
| Kong Gateway Kong Gateway is an open‑source, cloud‑native API and AI gateway that provides high‑performance request routing, load balancing, authenticat… | 91 | 44279 | active |
| Unitech/pm2 PM2 is a production process manager for Node.js and Bun applications with a built-in load balancer and cluster mode. It daemonizes applicat… | 94 | 43300 | stable |
| PostHog PostHog is an open‑source platform for product analytics, feature flags, session replay, error tracking and experimentation. It can be self… | 95 | 40328 | active |
| Claude Code Router Claude Code Router (CCR) is a self-hosted local model gateway and control plane that routes AI coding agent requests (Claude Code, Codex, G… | 85 | 37369 | active |
| fastify/fastify Fastify is a high‑performance web framework for Node.js that emphasizes low overhead and developer experience. It provides a powerful plugi… | 99 | 37268 | active |
| AndroidUtilCode AndroidUtilCode is a powerful, easy-to-use Android utility library that encapsulates commonly used functions in Android development, split … | 23 | 33618 | stable |
| Beego Beego is a high‑performance web framework for the Go programming language. It provides MVC architecture, built‑in ORM, session handling, ca… | 89 | 32426 | active |
| SigNoz Observability Platform SigNoz is an open-source, OpenTelemetry-native observability platform that unifies logs, metrics, traces, alerts, and dashboards in a singl… | 95 | 32332 | active |
| Symfony Symfony is a full-stack PHP framework for building web and console applications, plus a set of reusable, decoupled PHP components used by p… | 93 | 31168 | stable |
| facebook/folly Folly is a C++20 library of core components designed for practicality and efficiency. It provides a wide range of utilities, from concurren… | 95 | 30552 | active |
| nautechsystems/nautilus_trader NautilusTrader is an open-source, Rust-native algorithmic trading engine with a deterministic, event‑driven core. It provides Python bindin… | 96 | 30308 | active |
| Hutool Hutool is a comprehensive Java utility library that wraps common JDK operations into convenient static helper classes. It covers strings, c… | 94 | 30254 | stable |
| Hutool Hutool is a comprehensive Java utility library that provides ready‑to‑use helpers for HTTP, JSON, database access, file I/O, logging, date … | 94 | 30254 | active |
| Harbor Harbor is an open‑source cloud‑native container registry that adds security, identity, and management features to Docker Distribution. It p… | 99 | 29547 | stable |
| Envoy Envoy is an open‑source, high‑performance edge and service proxy written in C++. It provides dynamic routing, load‑balancing, TLS terminati… | 95 | 29082 | active |
| Elixir Elixir is a dynamic, functional programming language built on the Erlang VM (BEAM), designed for building scalable and maintainable applica… | 97 | 26688 | stable |
| henrygd/beszel Beszel is a lightweight, self‑hosted server monitoring platform with a web dashboard. It collects system and container metrics, stores hist… | 91 | 26224 | active |
| Kratos Kratos is a lightweight Go framework for building cloud‑native microservices. It provides generated HTTP/gRPC transports, composable middle… | 88 | 25972 | active |
| Kratos Kratos is a lightweight Go framework for building cloud-native microservices, offering APIs for transport (HTTP/gRPC), middleware, registry… | 88 | 25972 | active |
| osquery/osquery osquery is a SQL-powered operating system instrumentation, monitoring, and analytics framework that exposes OS data as a high-performance r… | 88 | 23587 | active |
| lensapp/lens Lens is a desktop IDE for managing, debugging, and operating Kubernetes clusters. It provides a unified UI, real‑time metrics, logs, and bu… | 23 | 23244 | active |
| Vector Vector is a high-performance observability data pipeline written in Rust that collects, transforms, and routes logs, metrics, and traces to… | 93 | 22657 | active |
| EL-ADMIN ELADMIN is a front-end/back-end separated admin management system built on Spring Boot 2.7.18, JPA, Spring Security, JWT, Redis, and Vue. I… | 56 | 21905 | active |
| gofr-dev/gofr GoFr is an opinionated Go framework that accelerates microservice development with built‑in support for databases, gRPC, HTTP, and observab… | 90 | 20855 | active |
| jasontaylordev/CleanArchitecture Clean Architecture Solution Template is a .NET CLI template that scaffolds a full‑stack ASP.NET Core application following Clean Architectu… | 88 | 20640 | active |
| didi/DoKit DoKit (DoraemonKit) is an efficiency platform for the full lifecycle of pan-frontend product development, offering in-app debug toolkits fo… | 78 | 20418 | active |
| .NET Runtime The official .NET runtime, base class libraries, and shared host source repository maintained by Microsoft and the .NET Foundation. It prov… | 100 | 18367 | stable |
| abseil/abseil-cpp Abseil is an open-source collection of C++17-compliant libraries drawn from Google's internal codebase, designed to augment the C++ standar… | 92 | 18158 | stable |
| Effect Effect is a TypeScript library and ecosystem for building production-grade, type-safe applications, centered on the Effect type that encode… | 95 | 17323 | stable |
| Wazuh Wazuh is a free, open source security platform that unifies XDR and SIEM capabilities for threat prevention, detection, and response across… | 98 | 17197 | stable |
| infinitered/reactotron Reactotron is a free, open-source desktop application for debugging React JS and React Native apps, letting developers inspect state, API r… | 92 | 15590 | active |
| oblien/openship Openship is an open-source, self-hostable deployment platform with built-in CI/CD that builds, ships, routes, and TLS-terminates apps from … | 83 | 14813 | active |
| Logto Logto is an open-source identity and access management (IAM) infrastructure for SaaS and AI applications, built on OIDC, OAuth 2.1, and SAM… | 100 | 14728 | active |
| GoFrame GoFrame is a modular, high-performance full-stack development framework for Go, comparable to Laravel or Spring Boot, offering batteries-in… | 97 | 13287 | active |
| openreplay/openreplay OpenReplay is an open-source, self-hostable session replay and product analytics suite for web and mobile apps. It captures user sessions a… | 85 | 12892 | active |
| Crawlab Crawlab is a Go-based distributed web crawler management platform with a web UI for managing, scheduling, and monitoring spiders written in… | 49 | 12278 | active |
| quickwit-oss/quickwit Quickwit is an open-source, cloud-native search engine written in Rust and powered by Tantivy, designed to run sub-second search and analyt… | 93 | 11676 | active |
| xerj-org/xerj XERJ is a Rust-based, single-binary search engine built for AI agents, offering BM25, kNN vector, and hybrid search with Elasticsearch-comp… | 77 | 10576 | active |
| TechnitiumSoftware/DnsServer Technitium DNS Server is an open-source, cross-platform authoritative and recursive DNS server built on .NET, designed for self-hosting wit… | 97 | 10032 | stable |
| pocoproject/poco POCO (Portable Components) is a collection of cross-platform C++ class libraries for building network- and internet-centric applications, c… | 94 | 9483 | stable |
| Falco Falco is a CNCF-graduated cloud native runtime security tool for Linux that monitors kernel events (syscalls) via eBPF or kernel modules an… | 94 | 9478 | stable |
| App Manager App Manager is a full-featured open-source package manager and app inspector for Android. It lets users install, uninstall, back up, and de… | 93 | 9285 | active |
| BiliBiliTool BiliTool is a .NET-based automated task tool for Bilibili that performs scheduled tasks like daily check-ins, coin donations, lottery parti… | 100 | 9027 | active |
| Opensabre Microservice Platform Opensabre is a microservices development platform built on Spring Cloud 2023, integrating Spring Security, Spring Cloud Alibaba (Nacos, Sen… | 75 | 8942 | active |
| Apache ShenYu Apache ShenYu is a Java-native, asynchronous, high-performance API gateway for service proxying, protocol conversion, and API governance ac… | 86 | 8901 | stable |
| stamparm/maltrail Maltrail is a malicious network traffic detection system that matches observed domains, URLs, IP addresses, and User-Agent values against o… | 97 | 8620 | active |
| yangzongzhuan/RuoYi RuoYi is a lightweight Java rapid development framework and admin management system built on Spring Boot, MyBatis, and Shiro. It ships with… | 77 | 8588 | active |
| dropwizard/dropwizard Dropwizard is a Java framework that bundles stable libraries (Jetty, Jersey, Jackson, Logback, Metrics, JDBI/Hibernate, Liquibase) into an … | 93 | 8583 | stable |
| timercrack/trader An automated futures trading application built around the CTP native gateway, with a pybind11 C++ bridge to the Thost API, a Python-side ga… | 60 | 8460 | active |
| hs-web/hsweb-framework hsweb is a fully reactive enterprise backend management framework built on Spring Boot 2.x, Spring WebFlux, and R2DBC. It provides modular … | 72 | 8396 | active |
| Zeek Zeek (formerly Bro) is an open-source network security monitor and analysis framework that passively inspects network traffic and produces … | 97 | 8123 | stable |
| cloudwego/kitex Kitex is a high-performance, strongly extensible Go RPC framework for building microservices, developed by ByteDance's CloudWeGo team. It i… | 98 | 8050 | stable |
| Coroot Coroot is an open-source, self-hosted observability and APM platform that uses eBPF to collect metrics, logs, traces, and continuous profil… | 94 | 7966 | active |
| mher/flower Flower is an open-source web application for monitoring and managing Celery clusters in real time. It provides a dashboard for task and wor… | 93 | 7238 | active |
| Serial-Studio/Serial-Studio Serial Studio is an open-source cross-platform telemetry dashboard application that turns data from embedded devices and industrial buses i… | 97 | 7221 | active |
| Shuttle Shuttle is a Rust-native cloud development platform and framework that lets developers build and deploy backends without writing infrastruc… | 10 | 6926 | active |
| FullStackHero .NET Starter Kit A production-grade .NET 10 starter kit template combining a modular-monolith Web API (vertical slice architecture) with two React 19 front-… | 81 | 6814 | active |
| Dockhand Dockhand is a modern, self-hosted Docker management web application for real-time container management, Compose stack orchestration, and mu… | 83 | 6744 | active |