As your applications grow in size and complexity, managing logs becomes increasingly challenging. Open source logging tools can help you manage your logs, whether you’re implementing a fully customized open source solution or combining open source tools with observability tools like New Relic. These tools enable the import, parsing, transformation, filtering, and export of log data, enhancing your observability practice. They also provide flexibility to structure logs, obfuscate sensitive data, and make logs more readable before sending them to New Relic. Many open source logging tools include plugins and other options for forwarding log data, but sometimes additional solutions are needed. To properly correlate and compare log data, a centralized log management solution is essential, which can be achieved by using open source logging tools that standardize and format your logs. The use cases for these tools include exporting and importing log data, centralizing log data, standardizing and structuring your logs, and obfuscating sensitive data. OpenTelemetry, Logstash, Fluent Bit, Fluentd, and Rsyslog are some of the top open source logging tools that can be integrated with New Relic to maximize observability and logging across your stack. These tools provide vendor-neutral solutions for collecting and sending log data to tools like New Relic, ensuring maximum flexibility and control over your log management practice.