Get a control panel for your web app with event logging, user monitoring, analytics, notifications and more. | Zap takes a different approach. It includes a reflection-free, zero-allocation JSON encoder, and the base Logger strives to avoid serialization overhead and allocations wherever possible. By building the high-level SugaredLogger on that foundation, zap lets users choose when they need to count every allocation and when they'd prefer a more familiar, loosely typed API. |
Log events across every tier in your appAnything from errors to sales to usage;Easily segment events;All your projects in one place;Spot trends over time;Your events have value;Visualize geographical hot-spots;Ad-hoc queries for digging deep;Share events with everyone in your team or company;Control what events each user sees;Team members customize their own notifications;Eliminate inbox-clogging notifications;Easy to setup, zero maintenance;Hosted and accessible from anywhere;Build on our REST API;Webforms to integrate with your back-office;Webhooks enable event-triggered workflows;Mashup your events with 3rd-party apps | - |
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GitHub Stars - | GitHub Stars 23.9K |
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Integrations | |

Seq is a self-hosted server for structured log search, analysis, and alerting. It can be hosted on Windows or Linux/Docker, and has integrations for most popular structured logging libraries.

Loki is a horizontally-scalable, highly-available, multi-tenant log aggregation system inspired by Prometheus. It is designed to be very cost effective and easy to operate, as it does not index the contents of the logs, but rather a set of labels for each log stream.

It is an open source logging framework. With this tool – logging behavior can be controlled by editing a configuration file only without touching the application binary and can be used to store the Selenium Automation flow logs.

It is a simple and fast JSON logging module for node.js services. It has extensible streams system for controlling where log records go (to a stream, to a file, log file rotation, etc.)

It provides common Castle Project abstractions including logging services. It also features Castle DynamicProxy a lightweight runtime proxy generator, and Castle DictionaryAdapter.

It is a super fast, lightweight, and highly scalable logging and metrics processor and forwarder. It is the preferred choice for cloud and containerized environments.

CocoaLumberjack is a fast & simple, yet powerful & flexible logging framework for Mac and iOS.

We built uno, a small tool similar to uniq (the UNIX CLI tool that removes duplicates) - but with fuzziness. uno considers two lines to be equal if their edit distance is less than a specified threshold, by default set to 30%. It reads from stdin and prints the deduplicated lines to stdout.

It is Swift-based logging framework for iOS and macOS. It has different types of log messages where also we can filter logs to make bug checking even easier and has a free license plan.
LogDevice is a scalable and fault tolerant distributed log system. While a file-system stores and serves data organized as files, a log system stores and delivers data organized as logs. The log can be viewed as a record-oriented, append-only, and trimmable file.