Software Alternatives, Accelerators & Startups

Bazel VS CircleCI

Compare Bazel VS CircleCI and see what are their differences

Bazel logo Bazel

Bazel is a tool that automates software builds and tests.

CircleCI logo CircleCI

CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
  • Bazel Landing page
    Landing page //
    2024-07-17
  • CircleCI Landing page
    Landing page //
    2023-10-05

CircleCI

$ Details
-
Release Date
2011 January
Startup details
Country
United States
State
California
Founder(s)
Allen Rohner
Employees
500 - 999

Bazel features and specs

  • High Scalability
    Bazel is designed to handle large codebases and complex dependency graphs efficiently, which makes it suitable for projects with millions of lines of code.
  • Incremental Builds
    Bazel supports incremental builds by only rebuilding parts of the project that have changed, thus saving time and computational resources.
  • Cross-Platform Support
    Bazel supports different platforms including Linux, MacOS, and Windows, enabling consistent build processes across diverse development environments.
  • Reproducible Builds
    It ensures that the same source code will yield identical build outputs, which is beneficial for debugging and ensuring consistency across different environments.
  • Extensibility
    Bazel is highly extensible, allowing developers to define custom build rules and macros to fit their specific needs.
  • Wide Language Support
    Out of the box, Bazel supports many programming languages such as Java, C++, Python, and Go, with the ability to extend to other languages.

Possible disadvantages of Bazel

  • Steep Learning Curve
    Bazel has a complex configuration language and many internal concepts, which might be challenging for new users to learn and adopt quickly.
  • Limited IDE Integration
    Compared to other build systems, Bazel might have limited or less mature support in certain Integrated Development Environments (IDEs), potentially hindering productivity.
  • Overhead of Remote Caching
    While remote caching is a powerful feature, setting it up and maintaining it can introduce additional overhead and complexity to the build process.
  • Initial Setup Complexity
    Getting a project up and running with Bazel can require significant upfront configuration, especially for projects migrating from another build system.
  • Limited Community Support
    Compared to more established build systems, Bazel has a smaller community, which might result in fewer resources and shared knowledge available online.

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.

Analysis of Bazel

Overall verdict

  • Bazel is a powerful and robust build tool, especially for large-scale projects and organizations that require high build performance and scalability. Its advanced features can significantly improve the efficiency of development workflows. However, there is a learning curve, and the complexity of rules and configurations may not suit smaller projects or those with simpler build requirements.

Why this product is good

  • Bazel is a build tool developed by Google that is designed to support fast and correct builds. It is particularly known for its ability to handle large codebases and complex build dependencies efficiently. Bazel uses a single build language across different platforms, and its build system provides features such as incremental builds, remote build execution, and caching, which make it highly suitable for repetitive and reproducible builds. The tool is capable of handling projects written in multiple languages, such as Java, C++, Python, and more, due to its extensibility with custom rules.

Recommended for

  • Large-scale and complex software projects
  • Organizations that utilize monorepos
  • Developers needing cross-platform support
  • Teams looking to leverage remote build execution
  • Projects with complex dependencies across multiple programming languages

Bazel videos

Kebenaran dari Powerbank Bazel 450 Series

More videos:

  • Review - BazelCon 2019 Day 2: Half-Day Bazel Bootcamp (Part 1)
  • Review - What's new in Bazel build and Gerrit Code Review

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)

Category Popularity

0-100% (relative to Bazel and CircleCI)
Front End Package Manager
Continuous Integration
DevOps Tools
8 8%
92% 92
Continuous Deployment
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 Bazel and CircleCI

Bazel Reviews

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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 byย Uzair Ghalibย on the 02nd Jan 2024
CircleCIโ€“ Get unparalleled performance and insights with CircleCIโ€™s interactive dashboard and automatic upgrades โ€“ 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. Itโ€™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.

Social recommendations and mentions

CircleCI might be a bit more popular than Bazel. We know about 83 links to it since March 2021 and only 69 links to Bazel. 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.

Bazel mentions (69)

  • Designing for Scale: Repository Structures that Boost Software Development Productivity
    The solution isn't always a knee-jerk switch to a polyrepo. As radwanalmsora highlighted in the discussion, more often it's about investing in robust tooling for your monorepo. Tools like Bazel, Nx, or Turborepo can build graphs to understand dependencies, ensuring CI only runs affected targets. Combined with CODEOWNERS files, these tools enable even massive monorepos (think Google or Meta scale) to function... - Source: dev.to / 3 months ago
  • Monorepo vs Multi-Repo: Why AI Agents Tip the Scale
    Monorepo gave you atomic cross-service changes, a single dependency graph, unified CI/CD, and zero version skew between internal libraries. The cost was large clone sizes, slower CI without build caching, complex permission models, and the need for specialized tooling like Bazel, Pants, Nx, or Buck2 to keep builds fast. - Source: dev.to / 3 months ago
  • Swift and Cute 2D Game Framework: Setting Up a Project with CMake
    I really recommend Bazel (https://bazel.build). - Source: Hacker News / about 1 year ago
  • Why Is This Site Built with C
    Agree regarding easiness of building rust (`cargo build`), extremely satisfying (git clone and cargo build...) Does anyone have any comments on Bazel[1] because I'm kind of settling on using it whenever it's appropriate (c/c++)?.. [1] https://bazel.build/. - Source: Hacker News / over 1 year ago
  • 7 Ways to Use the SLSA Framework to Secure the SDLC
    To achieve reproducibility, your build process must control for environmental differences like timestamps, file ordering, or machine-specific configurations. Tools like Bazel or Nixprovide deterministic build systems that lock down these variables. For instance, Bazel uses a content-addressable cache, meaning the same source code and dependencies always result in the same build outputs, even when run on different... - Source: dev.to / almost 2 years ago
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CircleCI mentions (83)

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What are some alternatives?

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

Gradle - Accelerate developer productivity. Gradle helps teams build, automate and deliver better software, faster. DocsExplore the documentation of Gradle. Find installation ..

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

GNU Make - GNU Make is a tool which controls the generation of executables and other non-source files of a program from the program's source files.

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

Please - A Cross-Language Build System

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 CIโ€™s precision syntaxโ€”all with the developer in mind.