Open Source JavaScript Logging Software

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

When logging, it's important to use the least amount of resources available. Over time, logged messages tend to pile up. This can lead to some negative effects on applications, such as reduced requests per second. This is why pino is an ideal choice for logging. pino is a very fast Node.js logger with very low overhead. It is in many cases 5x faster than alternatives, based on benchmarks. pino offers not just speed but a number of great features as well, such as a browser API, child loggers, transports, and pretty printing, which "prettifies" your logs.

Fancy output with fallback for minimal environments. Consistent command-line interface (CLI) experience. Spam prevention by throttling logs. console uses std in the underlying so calling wrapStd redirects console too. The benefit of this function is that things like console.info will be correctly redirected to the corresponding type. Any instance of consola that inherits the mocked instance, will apply provided callback again. This way, mocking works for withTag scoped loggers without the need for extra effort. Choose between one of the built-in reporters or bring in your own one. By default FancyReporter is registered for modern terminals or BasicReporter will be used if running in limited environments such as CIs. A reporter (class or object) exposes log(logObj) method. To get more info about how to write your own reporter, take a look at the linked implementations.

koa2 version winston logger like express-winston. Add logger to your koa2 server in 3 lines.

Logger for Redux. Now maintained by LogRocket! LogRocket is a production Redux logging tool that lets you replay problems as if they happened in your own browser. Instead of guessing why errors happen or asking users for screenshots and log dumps, LogRocket lets you replay Redux actions + state, network requests, console logs, and see a video of what the user saw. Transform action before print. Eg. convert an Immutable object to plain JSON. Transform state before print. Eg. convert an Immutable object to plain JSON.

This is a Node.js module available through the npm registry. Installation is done using the npm install command. Create a new morgan logger middleware function using the given format and options. The format argument may be a string of a predefined name, a string of a format string, or a function that will produce a log entry. The format function will be called with three arguments tokens, req, and res, where tokens is an object with all defined tokens, req is the HTTP request and res is the HTTP response. The function is expected to return a string that will be the log line, or undefined / null to skip logging. Write log line on request instead of response. This means that a requests will be logged even if the server crashes, but data from the response (like the response code, content length, etc.) cannot be logged. To define a token, simply invoke morgan.token() with the name and a callback function.

Winston is designed to be a simple and universal logging library with support for multiple transports. A transport is essentially a storage device for your logs. Each winston logger can have multiple transports (see: Transports) configured at different levels (see: Logging levels). For example, one may want error logs to be stored in a persistent remote location (like a database), but all logs output to the console or a local file. Winston aims to decouple parts of the logging process to make it more flexible and extensible. Attention is given to supporting flexibility in log formatting (see: Formats) & levels (see: Using custom logging levels), and ensuring those APIs decoupled from the implementation of transport logging (i.e. how the logs are stored / indexed, see: Adding Custom Transports) to the API that they exposed to the programmer.

Hyperic is application monitoring and performance management for virtual, physical, and cloud infrastructures. Auto-discover resources of 75+ technologies, including vSphere, and collect availability, performance, utilization, and throughput metrics.

Cyberoam iView; the Intelligent Logging & Reporting solution provides organizations network visibility across multiple devices to achieve higher levels of security, data confidentiality while meeting the requirements of regulatory compliance. To know more about Cyberoam and it’s security solutions visit us at www.cyberoam.com.

This is a set of perl and php scripts that are used to collect, process, store and display netflow data.

WhoisUP v0.3 monitors hosts via ICMP and shows the status in a web page. When a host is down, the script can send mail, syslog message, open a popup message or play a sound. Moreover, the script monitors if the host exceed the latency threshold limit. The script uses NMap to send ICMP packets and to save the host status into an XML file. Then, WhoisUP reads the XML and shows the report in a web page with AJAX features; in case of host failure the script can send alarms. WhoisUP is useful to monitor hosts (PC, Server, NAS, Router, Switch and so on...) and to receive alerts when a host go down.

A PHP application to search for matching strings in log files. It was mainly designed for usage in a syslog server environment with big log files, where you cannot log to databases due to the size, but to plain text files which will be searched.

AJAXified logfile download and tailing application.

Big-Brother is a collection of J2EE filters and servlets that provide custom monitoring and auditing of web-applications, keeping track of who does what, when, and how often. It makes use of the jakarta-apache Struts framework for the interface GUI.

Cross-language and cross-platform user's action tracking framework,enabling researchers to respect user's privacy through visual controls which allow users to start/stop/pause data recording,view logged data and opt out of a research study.

DAD is a Windows event log and syslog management tool that allows you to aggregate logs from hundreds to thousands of systems in real time. DAD requires no agents on the servers or workstations. Correlation and analysis is driven through a web front end.

monitor - pings nodes, records response times, and alerts when unreachable checkinout - check in/out tracker for Helpdesk items logger - configuration change logger and notifier assets - asset manager (yet to be developed) projects - project tracker (yet to be developed)

Exlog is a web app to log daily expenses. It stores data on box.net using their xml api's. Exlog is built using AJAX and we intent to use freely available JS libs for UI.

An easy-to-use Java desktop application to centrally monitor resources from a variety of environments, including the ability to dynamically set up rules to trigger actions based on monitoring. Clients connect via simple and efficient UDP based protocol.

Log File Paladin is a wxWdigets based client and PHP based server application for automated monitoring of remote logs. It is designed to help technicians effortlessly monitor client machines which would otherwise receive no attention.

Log Searcher provided full indexed search engine for log files on each servers. It supported many powerful query types such as phrase queries, wildcard queries, proximity queries, range queries and more with Lucene and Solr technology. It comes with Web interface to search and generate chart accordingly. This project is Open Source project with Apache 2.0 license for allowing you to extra development on top of Log Searcher project. The initial configuration was written on readme.txt before implementation on production line. If you have idea for improvement, you can drop an email to me. Contact: log.searcher[at]yahoo.com

This project offers means to collect activity data from Windows XP and Vista users. The acquired data could be than used to enhance modern Information Retrieval techniques by inferring user interests and goals from their past actions.

This is a web application, using thing application user can see the log file with multiple search critria. This application supports Log4J and log4Net. This tool is used to filter the log file, based on multiple criteria. Admin user can configure multiple applications and group the application up to three levels. Application name will be displayed in tree structure based upon grouping. Application will be displayed based on roles. System will allow the user to filter the log file not only the application level and also in group level (Multiple groups or multiple application and group). This tool will allow creating multiple users with different role in this system.

Mojo Webstats is a simple web statistics tool. It uses Javascript, PHP and MySQL to process web statistics. Includes: 1) date/time, 2) document location and title, 3) ip address and hostname, 4) browser version, 5) visitor resolution, and 6) referrer.