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Top 14 ELK alternatives [open source included] in 2025

ELK is the acronym Elasticsearch, Logstash, and Kibana, and combined together, it is one of the most popular log analytics tools. Elastic changed the license of Elasticsearch and Kibana from the fully open Apache 2 license to a proprietary dual license. The ELK stack is also hard to manage at scale. In this article, we will discuss 14 ELK alternatives that you can consider using.

Top 11 Grafana Alternatives & Competitors [2025]

Are you looking for Grafana alternatives? Then you have come to the right place. Grafana started as a data visualization tool. It slowly evolved into a tool that can take data from multiple data sources for visualization. For observability, Grafana offers the LGTM stack (Loki for logs, Grafana for visualization, Tempo for traces, and Mimir for metrics). You need to configure and maintain multiple configurations for a full-stack observability setup.

The Ultimate Guide to API Monitoring in 2025 - Metrics, Tools, and Proven Practices

According to Akamai, 83% of web traffic is through APIs. Microservices, servers, and clients constantly communicate to exchange information. Even the Google search you made to reach this article involved your browser client calling Google APIs. Given APIs govern the internet, businesses rely on them heavily. API health is directly proportional to business prosperity. This article covers everything about API monitoring, so your API infrastructure’s health is always in check .

DataDog vs Prometheus - Comprehensive Comparison Guide [2025]

Both DataDog and Prometheus are application monitoring tools aimed to improve application performance. While Datadog is a cloud-based SaaS solution, meaning there's no need to install or maintain any infrastructure, Prometheus is an open-source tool that requires manual download and installation on your infrastructure. Let us compare DataDog and Prometheus to see which tool suits The biggest difference between Datadog and Prometheus is that while Prometheus is open-source, Datadog is proprietary.

Monitoring your Express application using OpenTelemetry

Nodejs is a popular Javascript runtime environment that executes Javascript code outside of a web browser. Express is the most popular web frameworks that sits on top of Nodejs and adds functionalities like middleware, routing, etc. to Nodejs. You can monitor your express application using OpenTelemetry and a tracing backend of your choice.

Implementing OpenTelemetry in a Rust application for performance monitoring

OpenTelemetry can be used to trace Rust applications for performance issues and bugs. OpenTelemetry is an open-source project under the Cloud Native Computing Foundation (CNCF) that aims to standardize the generation and collection of telemetry data. Telemetry data includes logs, metrics, and traces. Rust is a multi-paradigm, general-purpose programming language designed for performance and safety, especially safe concurrency.

Out of box Infrastructure Monitoring native to OpenTelemetry

Infrastructure monitoring module based on OpenTelemetry This is our first release with infra monitoring module and we have added support for: In roadmap If you need any clarification or find something missing, feel free to raise a GitHub issue with the label documentation or reach out to us at the community slack channel.

Implementing OpenTelemetry in Angular - A Practical Guide

Angular applications often grow in complexity, making it challenging to monitor performance and troubleshoot issues effectively. Enter OpenTelemetry: a powerful, vendor-neutral framework for telemetry collection. This guide will walk you through implementing OpenTelemetry in your Angular projects, enhancing your ability to observe and optimize your applications.

SigNoz - Open-source alternative to New Relic

If you're looking for an open-source alternative to New Relic, then you're at the right place. SigNoz is a perfect open-source alternative to New Relic. SigNoz provides a unified UI for metrics, traces and logs with advanced tagging and filtering capabilities. In today's digital economy, more and more companies are shifting to cloud-native and microservice architecture to support global scale and distributed teams.