log4js is a flexible and feature-rich logging library for Node.js applications. It provides a simple and intuitive API for logging messages to various output targets, such as the console, files, databases, and more. log4js supports different log levels, allowing you to control the verbosity of your logs and filter them based on severity.
v8.19.0(18 days ago)
Pino is a fast and low-overhead logging library for Node.js applications. It is designed to be extremely efficient and performant, making it ideal for high-performance applications and microservices. Pino supports various log levels, including trace, debug, info, warn, and error, allowing you to easily control the verbosity of your logs.
Both log4js and pino are popular logging libraries for Node.js. Pino has gained significant popularity in recent years due to its lightweight and high-performance nature. However, log4js has been around for longer and has a larger user base, making it a popular choice as well.
Pino is known for its exceptional performance and low overhead. It is designed to be one of the fastest logging libraries available, making it suitable for high-performance applications. Log4js also offers good performance but may not match the same level of raw speed as pino.
Both libraries offer a range of configuration options and can be customized to fit specific logging requirements. Log4js provides a more traditional and flexible API, allowing developers to configure loggers with various appenders, layouts, and log levels. Pino, on the other hand, focuses on simplicity and provides a minimalist API with fewer options, making it easier to use and configure.
Both log4js and pino can seamlessly integrate with popular frameworks and tools. They have integrations available for Express, Koa, and other web frameworks. Pino is also known for its excellent integration with the Fastify web framework. Developers can choose either library based on their specific framework requirements.
Pino has a reputation for having a simple and developer-friendly API. Its minimalistic design makes it easy to understand and use. Log4js, being a more mature library, has a comprehensive documentation and offers a wider range of features. Depending on personal preferences and requirements, developers can choose the library that aligns better with their development style.
Community and Maintenance
Both log4js and pino have active communities and are well-maintained. Log4js has been around for a longer time and has a larger user base, which results in more community support and plugins. Pino, being a newer library, still has a growing community but benefits from being actively maintained and updated.