Software Alternatives, Accelerators & Startups

CircleCI VS Nagios

Compare CircleCI VS Nagios and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

CircleCI logo CircleCI

CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.

Nagios logo Nagios

Complete monitoring and alerting for servers, switches, applications, and services
  • CircleCI Landing page
    Landing page //
    2023-10-05
  • Nagios Landing page
    Landing page //
    2023-10-21

CircleCI features and specs

  • Ease of Use
    CircleCI offers a user-friendly interface and straightforward configuration, making it accessible for both beginners and experienced users.
  • Scalability
    CircleCI easily scales with your project, allowing for flexible resource allocation and handling multiple workflows in parallel.
  • Extensive Integrations
    CircleCI supports a wide range of integrations with various tools and services like GitHub, Bitbucket, Docker, and Slack, enabling seamless workflows.
  • Speed and Performance
    With features like advanced caching, dependency management, and parallelism, CircleCI enables faster builds and quicker feedback cycles.
  • Customizability
    CircleCI provides powerful configuration options through YAML files, allowing users to tailor their CI/CD pipelines to specific project requirements.
  • Free Tier Availability
    CircleCI offers a free plan that includes several features, making it suitable for small projects and open-source contributions.

Possible disadvantages of CircleCI

  • Learning Curve for Advanced Features
    While CircleCI is generally user-friendly, mastering advanced configurations and optimizations can take time and require a deeper understanding of the platform.
  • Cost for Higher Tiers
    The pricing for higher-tier plans can become expensive, especially for large teams or enterprises requiring extensive usage and advanced features.
  • Limited Concurrency in Free Plan
    The free plan has limited concurrent builds, which might not be sufficient for larger projects with high parallelization needs.
  • Occasional Stability Issues
    Users have reported occasional performance and stability issues, particularly during high-demand periods, which can slow down the build process.
  • Configuration Complexity
    If not properly managed, the YAML configuration files can become complex and difficult to maintain for larger projects, leading to potential misconfigurations.

Nagios features and specs

  • Extensive Community Support
    Nagios has a large and active user community, which means you can easily find help and resources online. There are numerous plugins and add-ons developed by the community that can extend the functionality of Nagios.
  • Highly Customizable
    Nagios is highly customizable and flexible. It allows you to tailor monitoring to suit your specific needs, including creating custom plugins, modifying configuration files, and integrating with other tools.
  • Comprehensive Monitoring
    Nagios provides detailed monitoring of network services, host resources, and infrastructure systems. This includes the ability to monitor CPU load, disk usage, memory, and more.
  • Alerting and Notification
    Nagios has robust alerting and notification features that ensure you can stay informed of any issues or downtime. Alerts can be sent via email, SMS, or other communication channels.
  • Scalable
    Nagios is scalable and can grow with your organization. It supports a large number of hosts and services, making it suitable for both small and large enterprises.

Possible disadvantages of Nagios

  • Steep Learning Curve
    Nagios can be quite complex to set up and configure, especially for newcomers. The learning curve is steep, requiring time and effort to fully understand and utilize its capabilities.
  • Manual Configuration
    A significant amount of configuration is manual, particularly in the open-source version. This can be time-consuming and prone to human error, especially in larger environments.
  • Interface
    The user interface of Nagios is often considered outdated and less intuitive compared to other modern monitoring tools. The web interface can be difficult to navigate and is not as visually appealing.
  • Performance Issues
    Nagios can experience performance issues, particularly when monitoring a large number of hosts and services. It can become resource-intensive, requiring careful optimization and tuning.
  • Cost of Enterprise Version
    The enterprise version of Nagios, Nagios XI, comes with a significant cost. While it offers additional features, support, and a more user-friendly interface, it might not be affordable for all organizations.

Analysis of Nagios

Overall verdict

  • Nagios is generally considered a good tool, especially for users who require a highly customizable and adaptable monitoring solution. It is reliable and well-established in the IT industry.

Why this product is good

  • Nagios is considered a robust monitoring tool due to its flexibility, comprehensive network and application monitoring capabilities, and wide adoption in the industry. It allows system administrators to monitor critical infrastructure components, such as network protocols, applications, services, servers, and network infrastructure. Its active community and plugin ecosystem provide extensive customization options.

Recommended for

  • Organizations with complex IT environments needing comprehensive monitoring
  • System administrators who require flexibility and customization
  • Users who are comfortable with manual configurations and open-source solutions
  • Companies seeking a large community and a wealth of plugins for various use cases

CircleCI videos

CircleCI Part 1: Introduction to Unit Testing and Continuous Integration

More videos:

  • Tutorial - How To Setup CircleCI On Your Next Project (Vue, React, or Angular)

Nagios videos

Stop using Nagios - Andy Sykes

More videos:

  • Review - Bernd Erk - Why favour Icinga over Nagios
  • Review - How Nagios XI Works

Category Popularity

0-100% (relative to CircleCI and Nagios)
Continuous Integration
100 100%
0% 0
Monitoring Tools
0 0%
100% 100
DevOps Tools
100 100%
0% 0
Log Management
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare CircleCI and Nagios

CircleCI Reviews

The Best Alternatives to Jenkins for Developers
CircleCI is a cloud-based CI/CD platform that has gained significant traction in recent years. With a focus on simplicity and ease of use, CircleCI offers a streamlined approach to automating your build, test, and deployment processes. One of its standout features is its strong support for Docker, making it a great choice for teams working with containerized applications.
Source: morninglif.com
Top 5 Jenkins Alternatives in 2024: Automation of IT Infrastructure Written by Uzair Ghalib on the 02nd Jan 2024
CircleCI– Get unparalleled performance and insights with CircleCI’s interactive dashboard and automatic upgrades – revolutionizing the way you build and deploy your applications.
Source: attuneops.io
Top 10 Most Popular Jenkins Alternatives for DevOps in 2024
CircleCI can be a Jenkins replacement for teams seeking a managed experience where performance and support options are priorities. CircleCI is also investing heavily in building new capabilities that cater to the pipeline requirements of apps using AI and ML.
Source: spacelift.io
35+ Of The Best CI/CD Tools: Organized By Category
CircleCI is a complete CI/CD pipeline tool. You can monitor the statuses of your various pipelines from your dashboard. Additionally, CircleCI helps you manage your build logs, access controls, and testing. It’s one of the most popular DevOps and CI/CD platforms in the world.
10 Jenkins Alternatives in 2021 for Developers
CircleCI is generally recognized for its flexibility and compatibility. Customization is obviously an important factor when making the switch from Jenkins and CircleCI certainly takes an impressive swing at providing users with a solid collection of features.

Nagios Reviews

11 Best Nagios Alternatives (Free & Open Source) in 2024
Nagios is an open source network monitoring solution. It helps organizations to identify and resolve IT infrastructure issues. However, Nagios could be difficult integrate into automatic provisioning processes. There are few other issues with Nagios as well. Here, is a curated list of top tools that can replace Nagios. This list consists of paid as well as open-source...
Source: www.guru99.com
The Best Nagios Alternatives for Server, Application and Network Monitoring
Nagios is a very strong system monitoring package but its ability to compete in both the free and paid system monitoring market is frequently challenged. The free tool is very comprehensive. However, the Nagios team has taken away the traffic analysis functions from this, moving them off into a separate paid tool, which puts Nagios Core at a disadvantage when compared to...
The 10 Best Nagios Alternatives in 2024 (Paid and Open-source)
It’s also important to note that Nagios is completely open-source, which means that it’s free to use. However, “free to use” doesn’t mean that it won’t cost you anything. Often, the reason users look for alternatives to tools like Nagios is because of their open-source nature. Self-hosting a tool of this magnitude can be even more expensive than purchasing a SaaS subscription.
Source: betterstack.com
The Best Cacti Monitoring Alternatives
Nagios is free for small environments with seven or fewer nodes and hosts. Its paid version starts at $1995 for the license and is priced per user. There is also a variety of free training options for Nagios available online. Both of Nagios’ paid versions include a free trial.
10 Best Linux Monitoring Tools and Software to Improve Server Performance [2022 Comparison]
Nagios Core is an open-source Linux/Unix systems monitoring and alerting tool that can be extended through custom plugins, providing flexible Linux server monitoring. It remotely executes different plugins (executables or scripts) on your Linux server using the NRPE (Nagios Remote Plugin Executor) add-on, which gives you comprehensive monitoring data, including OS metrics,...
Source: sematext.com

Social recommendations and mentions

Based on our record, CircleCI seems to be more popular. It has been mentiond 78 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

CircleCI mentions (78)

  • End-to-end testing and deployment of a multi-agent AI system with Docker, LangGraph, and CircleCI
    In this tutorial, you will walk through the process of building, testing, and deploying a multi-agent AI system using LangGraph, Docker, AWS Lambda, and CircleCI. You will develop a research-driven AI workflow where different agents,such as fact-checking, summarization, and search agents, work together seamlessly. You will package this application into a Docker container, deploy it to AWS Lambda, and automate the... - Source: dev.to / 6 days ago
  • Improving API Performance In Legacy Systems: A Guide for API Developers
    Tools like Jenkins, GitLab CI/CD, and CircleCI offer capabilities for parallel testing and test caching, allowing multiple tests to run simultaneously. This approach significantly reduces overall testing time and prevents unnecessary delays in deployment. Industry leaders such as Netflix and Amazon employ these practices to minimize outages and maintain high service quality. - Source: dev.to / 3 months ago
  • Top 17 DevOps AI Tools [2025]
    CircleCI is a leading cloud-based platform for CI/CD that automates the software development process, enabling teams to build, test, and deploy applications with efficiency and precision. By integrating seamlessly with popular version control systems like GitHub, GitLab and Bitbucket, CircleCI enhances collaboration and accelerates development cycles. - Source: dev.to / 3 months ago
  • Building a serverless GenAI API with FastAPI, AWS, and CircleCI
    GitHub and CircleCI Accounts: You will need a GitHub account to host your project’s repository and a CircleCI account to automate testing and deployment through CI/CD. - Source: dev.to / 3 months ago
  • CircleCI vs. Jenkins
    CircleCI is a CI/CD platform that automates the process of building, testing, and deploying software. It helps developers integrate code changes more frequently and efficiently, ensuring that software development teams can detect and fix errors quickly. - Source: dev.to / 3 months ago
View more

Nagios mentions (0)

We have not tracked any mentions of Nagios yet. Tracking of Nagios recommendations started around Mar 2021.

What are some alternatives?

When comparing CircleCI and Nagios, you can also consider the following products

Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development

Zabbix - Track, record, alert and visualize performance and availability of IT resources

Codeship - Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.

Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.

Travis CI - Simple, flexible, trustworthy CI/CD tools. Join hundreds of thousands who define tests and deployments in minutes, then scale up simply with parallel or multi-environment builds using Travis CI’s precision syntax—all with the developer in mind.

NewRelic - New Relic is a Software Analytics company that makes sense of billions of metrics across millions of apps. We help the people who build modern software understand the stories their data is trying to tell them.