Browse free open source Logging software and projects for Windows and Linux below. Use the toggles on the left to filter open source Logging software by OS, license, language, programming language, and project status.

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  • 1

    S.M.A.R.T. Monitoring Tools

    Disk Inspection and Monitoring

    smartmontools contains utility programs (smartctl, smartd) to control/monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (S.M.A.R.T.) built into most modern ATA and SCSI disks. It is derived from smartsuite.
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    Downloads: 14,758 This Week
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  • 2
    log4cplus

    log4cplus

    Logging Framework for C++

    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.
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    Downloads: 7,155 This Week
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  • 3
    ANSI C functions and macros for flexible logging to files and other destinations. It is modeled after the Log for Java library (http://www.log4j.org), staying as close to their API as is reasonable. Intended for use in time-space critical environments
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    Downloads: 3,514 This Week
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  • 4

    Log library for C++

    C++ library for flexible logging

    A library of C++ classes for flexible logging to files (rolling), syslog, IDSA and other destinations. It is modeled after the Log for Java library (http://www.log4j.org), staying as close to their API as is reasonable. Platforms: Linux, Windows. New: CMake support for MS VS 2022, RAD Studio 12
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    Downloads: 618 This Week
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  • 5
    ettercap
    Ettercap is a multipurpose sniffer/interceptor/logger for switched LAN. It supports active and passive dissection of many protocols (even ciphered ones) and includes many feature for network and host analysis. Development has been moved to GitHub, https://github.com/Ettercap/ettercap
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    Downloads: 109 This Week
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  • 6
    Monolog

    Monolog

    Sends logs to files, sockets, inboxes, databases and web services

    Monolog sends your logs to files, sockets, inboxes, databases and various web services. See the complete list of handlers below. Special handlers allow you to build advanced logging strategies. This library implements the PSR-3 interface that you can type-hint against in your own libraries to keep a maximum of interoperability. You can also use it in your applications to make sure you can always use another compatible logger at a later time. As of 1.11.0 Monolog public APIs will also accept PSR-3 log levels. Internally Monolog still uses its own level scheme since it predates PSR-3. Tidelift delivers commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. Monolog 1.x support is somewhat limited at this point and only important fixes will be done. You should migrate to Monolog 2 where possible to benefit from all the features.
    Downloads: 21 This Week
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  • 7
    Logstash

    Logstash

    Centralize, transform and stash your data

    Logstash is a server-side data processing pipeline that dynamically ingests data from numerous sources, transforms it, and ships it to your favorite “stash” regardless of format or complexity. It supports and ingests data of all shapes, sizes and sources, dynamically transforms and prepares this data, and transports it to the output of your choice. Logstash is extensible, with over 200 plugins available to let you create and configure your pipeline how you choose.
    Downloads: 19 This Week
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  • 8
    syslog-ng

    syslog-ng

    Log management solution that improves the performance of SIEM

    syslog-ng is the log management solution that improves the performance of your SIEM solution by reducing the amount and improving the quality of data feeding your SIEM. With syslog-ng Store Box, you can find the answer. Search billions of logs in seconds using full text queries with Boolean operators to pinpoint critical logs. syslog-ng Store Box provides secure, tamper-proof storage and custom reporting to demonstrate compliance. syslog-ng can deliver data from a wide variety of sources to Hadoop, Elasticsearch, MongoDB, and Kafka as well as many others. syslog-ng flexibly routes log data from X sources to Y destinations. Instead of deploying multiple agents on hosts, organizations can unify their log data collection and management. syslog-ng Store Box provides automated archiving, tamper-proof encrypted storage, granular access controls to protect log data. The largest appliance can store up to 10TB of raw logs.
    Downloads: 18 This Week
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  • 9
    NSClient++ is a windows service that allows performance metrics to be gathered by Nagios (and possibly other monitoring tools). It is an attempt to create a NSClient and NRPE compatible but yet extendable performance service for windows.
    Downloads: 75 This Week
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  • 10
    Elasticsearch

    Elasticsearch

    A Distributed RESTful Search Engine

    Elasticsearch is a distributed, RESTful search and analytics engine that lets you store, search and analyze with ease at scale. It lets you perform and combine many types of searches; it scales seamlessly, and offers answers incredibly fast with search results you can rank based on a variety of factors. Elasticsearch can be used for a wide variety of use cases, from maps and metrics to site search and workplace search, and with all data types.
    Downloads: 9 This Week
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  • 11
    Osquery

    Osquery

    SQL operating system instrumentation and monitoring framework

    Osquery is an operating system instrumentation framework for Windows, OS X (macOS), Linux, and FreeBSD. The tools make low-level operating system analytics and monitoring both performant and intuitive. Osquery exposes an operating system as a high-performance relational database. This allows you to write SQL queries to explore operating system data. With osquery, SQL tables represent abstract concepts such as running processes, loaded kernel modules, open network connections, browser plugins, hardware events or file hashes.Osquery queries your devices like a database. Osquery uses basic SQL commands to leverage a relational data-model to describe a device. Frequently, attackers will leave a malicious process running but delete the original binary on disk. This query returns any process whose original binary has been deleted, which could be an indicator of a suspicious process.
    Downloads: 8 This Week
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  • 12
    ddrescueview

    ddrescueview

    Graphical viewer for GNU ddrescue mapfiles

    This small tool allows the user to graphically examine ddrescue's mapfiles in a user friendly GUI application. The Main window displays a block grid with each block's color representing the block types it contains. Many people know this type of view from defragmentation programs. The program is written in Object Pascal using the Lazarus IDE. It can be compiled to run on Windows, GNU/Linux and probably OS X, too. The downloads include binaries for the respective target platform and the project files (source code). Update 2022/02/25: ddrescueview version 0.4.5 has been released. This maintenance release restores compatibility with ddrescue 1.24 and later. Please consider testing this version. Report issues in the bug tracker if you have a sourceforge account, or by email to <mbit-kiel@users.sourceforge.net>
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    Downloads: 51 This Week
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  • 13
    File system/directory monitoring utilities with loggin and task processing support (can execute files or make a WCF service call). Multiple configuration options. Source code libraries can be used to create a custom file system monitor.
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    Downloads: 35 This Week
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  • 14
    PSR Log

    PSR Log

    An interface that describes a logger

    The main goal is to allow libraries to receive a Psr\Log\LoggerInterface object and write logs to it in a simple and universal way. The LoggerInterface exposes eight methods to write logs to the eight RFC 5424 levels (debug, info, notice, warning, error, critical, alert, emergency). Every method accepts a string as the message, or an object with a toString() method. Implementors MAY have special handling for the passed objects. If that is not the case, implementors MUST cast it to a string. The interfaces and classes described as well as relevant exception classes and a test suite to verify your implementation are provided as part of the psr/log package. Note that this is not a logger of its own. It is merely an interface that describes a logger. You can pick one of the implementations of the interface to get a logger. If you want to implement the interface, you can require this package and implement Psr\Log\LoggerInterface in your code.
    Downloads: 6 This Week
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  • 15
    Laravel Activity Log

    Laravel Activity Log

    Log activity inside your Laravel app

    The spatie/laravel-activitylog package provides easy-to-use functions to log the activities of the users of your app. It can also automatically log model events. All activity will be stored in the activity_log table. Open source software is used in all projects we deliver. Laravel, Nginx, Ubuntu are just a few of the free pieces of software we use every single day. For this, we are very grateful. When we feel we have solved a problem in a way that can help other developers, we release our code as open source software on GitHub.
    Downloads: 5 This Week
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  • 16
    Log Viewer

    Log Viewer

    Fast and beautiful Log Viewer for Laravel

    Beautiful, fast, and open-source viewer for your app logs. Forget scrolling through raw log files to find the errors or debug logs you're looking for. Forget about SSH'ing onto the production server just to read the logs. Log Viewer helps you quickly and clearly see individual log entries, to search, filter, and make sense of your Laravel logs fast. It is free and easy to install.
    Downloads: 5 This Week
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  • 17
    Slonik

    Slonik

    A Node.js PostgreSQL client with runtime and build time type safety

    Slonik is a PostgreSQL client for Node.js that ensures safe and efficient query execution by using tagged template literals, preventing SQL injection attacks and promoting better query structure.
    Downloads: 5 This Week
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  • 18
    Untangle
    Untangle is a Linux-based network gateway with pluggable modules for network applications like spam blocking, web filtering, anti-virus, anti-spyware, intrusion prevention, bandwidth control, captive portal, VPN, firewall, and more. Visit http://untangle.com
    Downloads: 20 This Week
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  • 19
    Logbook

    Logbook

    An extensible Java library for HTTP request and response logging

    Logbook is an extensible Java library to enable complete request and response logging for different client- and server-side technologies. It satisfies a special need by a) allowing web application developers to log any HTTP traffic that an application receives or sends b) in a way that makes it easy to persist and analyze it later. This can be useful for traditional log analysis, meeting audit requirements or investigating individual historic traffic issues. Logbook is ready to use out of the box for most common setups. Even for uncommon applications and technologies, it should be simple to implement the necessary interfaces to connect a library/framework/etc. to it.
    Downloads: 4 This Week
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  • 20
    koa2-winston

    koa2-winston

    koa2 version winston logger like express-winston

    koa2 version winston logger like express-winston. Add logger to your koa2 server in 3 lines.
    Downloads: 4 This Week
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  • 21
    tinylog

    tinylog

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

    Simplify your logging with tinylog. The lightweight logging framework can be used with Java, Kotlin, Scala, and any other JVM language. tinylog is open source and runs wherever Java is used: JVM, GraalVM, and Android.
    Downloads: 4 This Week
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  • 22
    Loguru

    Loguru

    Python logging made (stupidly) simple

    Loguru is a Python library designed to simplify logging for developers. It offers easy setup with no configuration, support for multiple sinks (console, file, etc.), structured logging, formatting, rotation, and exception handling—all in an intuitive API.
    Downloads: 3 This Week
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  • 23
    Serilog

    Serilog

    Simple .NET logging with fully-structured events

    Like many other libraries for .NET, Serilog provides diagnostic logging to files, the console, and elsewhere. It is easy to set up, has a clean API, and is portable between recent .NET platforms. Unlike other logging libraries, Serilog is built with powerful structured event data in mind. Serilog message templates are a simple DSL extending .NET format strings. Parameters can be named, and their values are serialized as properties on the event for incredible searching and sorting flexibility. Serilog is a diagnostic logging library for .NET applications. It is easy to set up, has a clean API, and runs on all recent .NET platforms. While it's useful even in the simplest applications, Serilog's support for structured logging shines when instrumenting complex, distributed, and asynchronous applications and systems.
    Downloads: 3 This Week
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  • 24
    Timbre

    Timbre

    Pure Clojure/Script logging library

    Java logging can be a Kafkaesque mess of complexity that buys you little. Getting even the simplest logging working can be comically hard, and it often gets worse at scale as your needs become more sophisticated. Timbre offers an all Clojure/Script alternative that's fast, deeply flexible, easy to configure with pure Clojure data, and that just works out the box. No XML. Easily filter logging calls by any combination of: level, namespace, and appended. Zero overhead compile-time level/ns elision. Useful built-in appenders for out-the-box Clj+Cljs logging. Powerful, easy-to-configure rate limits and async logging. Logs as Clojure values (v3+). Small, simple, cross-platform codebase. 3rd-party tools, appenders, etc. No XML or properties files. A single, simple config map, and you're set. Simple, flexible fn appender model with middleware. Great performance at any scale.
    Downloads: 3 This Week
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  • 25
    spdlog

    spdlog

    Fast C++ logging library

    spdlog is a header only library. Just copy the files under include to your build tree and use a C++11 compiler. It provides a python like formatting API using the bundled fmt lib. spdlog takes the "include what you need" approach, your code should include the features that actually needed. For example, if you only need rotating logger, you need to include "spdlog/sinks/rotating_file_sink.h". spdlog provides various log targets, which are, rotating log files, daily log files, console logging (colors supported), syslog, Windows event log, and Windows debugger (OutputDebugString(..)). Easily extendable with custom log targets. Log filtering, log levels can be modified in runtime as well as in compile time. Support for loading log levels from argv or from environment var. Backtrace support, store debug messages in a ring buffer and display later on demand.
    Downloads: 3 This Week
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