Buildkite vs AppVeyor comparison of Continuous Integration servers
What are the differences between Buildkite and AppVeyor?

Buildkite

https://buildkite.com

AppVeyor

https://www.appveyor.com
Unique feature

Runs on own infrastructure, API

Supports NuGet packages / Windows build environment

Type of product

SaaS

SaaS / On Premise

Offers a free plan

Yes

Free for open source projects and selected organizations

Yes

Free SaaS plan for open source projects. There is also a free on premise version, but it's quite limited (1 user, 1 team, community support)
Predictable pricing

Yes

Clearly defined monthly and annual plans

Yes

Very simple pricing plans: 3 options for the SaaS version, two options for the on premise option. No variable pricing.
Support / SLA

Yes

Depending on the plan, ranging from community support, all the way to an assigned Technical Manager, SLAs and live chat support.

Yes

All paid on premise plans offer support, as well as the two higher priced SaaS plans. Only community support available for the free on premise version and the lowest SaaS tier.
Paralellism
Every CI servers tends to address this differently (parallel, distributed, build matrix). Some of it is just marketing, and some is just nuance. For this table, parallel means that tasks can be run concurrently on the same machine, distributed means that tasks can be scaled horizontally, on multiple machines
How to split tests in parallel in optimal way with Knapsack Pro

Yes

Up to 10000 agents per account. You can run your tests in isolated Docker container per agent.

Yes

Allows splitting tests to run on different VMs in parallel.
Distributed builds
distributed means that tasks can be scaled horizontally, on multiple machines
How to split tests in parallel in optimal way with Knapsack Pro

Yes

Up to 10000 agents per account

N/A

Containers support / Build environment

Yes

Since the agents run on your own infra, you're free to do whatever

Yes

Runs every build in a VM, and it offers several options depending on the plan (SaaS or self-hosted) as well sa personal preference.
Analytics / Status overview
Analytics and overview referrs to the ability to, at a glance, see what's breaking (be it a certain task, or the build for a specific project)

Yes

The Buildkite UI features great vizualisations that feature build times, error rates, and more.

Yes

The dashboard is not as great as for other options in the market, but allows seeing project status at a glance.
Management support
How easy is it to manage users / projects / assign roles and permissions and so on

Yes

Yes

Allows creating teams and assigning roles. There is some integration with GitHub Teams but the concepts are different which might be tricky depending on how the GitHub project is managed, for instance.
Self-hosted option

No

Yes

Hosted plans / SaaS

Yes

Yes

Build pipelines
A continuous delivery pipeline is a description of the process that the software goes through from a new code commit, through testing and other statical analysis steps all the way to the end-users of the product.

Yes

Pipelines are defined using an Yaml config file and allow for great flexibility in defining what each step of the process does.

Yes

There is a single predefined possible pipeline, which defines various hooks (such as before_build / after_build). The pipeline can be configured via the UI or via an appveyor.yml file. The two are mutually exclusive, so it's either one or the other.
Reports
Reports are about the abilty to see specific reports (like code coverage or custom ones), but not necesarily tied in into a larger dashboard.

Yes

Yes

Notifications are highly configurable, but visual reports such as code coverage is not easy to implement.
Ecosystem
Besides the official documentation and software, is there a large community using this product? Are there any community-driven tools / plugins that you can use?

No

Integrations for GitHub, GitLab, BitBucket as well as SSO support (Google Suite, SAML, GraphQL API)

N/A

Specific language support: Ruby
Some CI servers have built-in support for parsing RSpec or Istanbul output for example and we mention those. Some others make it even easier by detecting Gemfiles or package.json and automate parts of the process for the developer.

No

Yes

Many Ruby gems use AppVeyor as their CI server of choice. Among the features for Ruby are the pre-installed Ruby versions on both Windows and Ubuntu servers, as well as the appveyor-worker gem which makes it easy to report status during the build process.
Specific language support: JavaScript

No

Yes

Comes with node.js and io.js versions pre-installed. Also offers documentation on npm integration on their website.
Integrations
1st party support for common tools (like Slack notifications, various VCS platforms, etc)

Yes

Integrations for GitHub, GitLab, BitBucket as well as SSO support (Google Suite, SAML, GraphQL API)

Yes

Probably the most notable aspect here is the large array of deployment integrations available (from simple FTP uploads to Azure servers or NuGet packages).
API
Custom integreation is available, via an API or otherwise, it's mentioned separately as it allows further customization than any of the Ecosystem/Integration options

Yes

Great GraphQL API, allows building your own dashboard with ease

Yes

Offers a basic CRUD REST API for querying projects and builds as well as a real-time Build Worker API which can send updates on build status.
Auditing

Yes

N/A

Additional notes

Very Windows oriented

How to run parallel tests on Buildkite and AppVeyor
to execute 1-hour test suite in 2 minutes?

How it works

1. Install Knapsack Pro client in your project


2. Add Knapsack Pro client to your current CI server and run your tests in parallel



3. Update your CI server config file to run tests in parallel with Knapsack Pro

Knapsack Pro in Queue Mode will split tests in a dynamic way across parallel CI nodes to ensure each CI node finish work at a similar time. Thanks to that your CI build time is as fast as possible. It works with many supported CI servers.

Do you know

Start using Knapsack Pro

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Get faster feedback from Buildkite and AppVeyor server

  • save time & money
  • deliver features faster
  • catch errors earlier

Buildkite parallel agents and how to use them for CI parallelisation

Buildkite parallelism integration

Introduction to CI parallelisation with Knapsack Pro

Run tests in parallel on Buildkite and AppVeyor in optimal way and avoid bottleneck parallel jobs.

How much can you save with faster tests
on Buildkite and AppVeyor?

minutes
$

Monthly you can save hours
and up to $
on faster development cycle.

Features that make your tests perform better

  • Queue mode see video

    Dynamic tests allocation across Buildkite and AppVeyor parallel jobs. Autobalance tests to get optimal test suite split betweeen CI nodes.

  • Regular mode see video

    Test suite split based on time execution. Generates subset of test suite per CI node before running tests.

  • Fallback mode

    Network issues? Not a problem, run tests anyway! Auto switch to the fallback mode to not depend on Knapsack Pro API.

  • All supported test runners

    Ruby: RSpec, Minitest, Test::Unit, Cucumber, Spinach, Turnip.

    JavaScript: Cypress.io, Jest

    Do you use different programming language or test runner? Let us know in the poll

Discover all features or see
how to use Knapsack Pro with your CI

Trusted solution

Join the teams optimizing their tests with Knapsack Pro.

We've been really enjoying Knapsack Pro, it's been saving us a ton of time.

Devin Brown Software Engineer at Pivotal

This is a fantastic product, it's been a total game-changer for us.

Geoff Harcourt CTO at CommonLit

We are using CircleCI and we noticed that builds were being limited by the slowest parallelized container. Knapsack Pro was really east to setup and we saw huge improvements right away. Thank you for making this tool!

Martin Sieniawski Software Engineer at Collage

Knapsack Pro has helped us build an insanely fast and scaleable build pipeline with almost no setup or maintenance.

Tim Lucas Co-founder of buildkite.com

Knapsack Pro saves us hours of engineer waiting time every week, and is the best solution for keeping our tests load balanced that we've used to date.

Michael Amygdalidis Senior Software Engineer at Popular Pays

I just logged into my account expecting it to say that I needed to add a credit card and was so surprised and delighted to see the trial doesn't count usage by calendar days but by testing days! This is incredible! I love it!!!

I just wanted to say that I really appreciate that small but very huge feature. Thank you for being so thoughtful :)

Shannon Baffoni Senior Software Engineer
at Blue Bottle Coffee

See more testimonials

Start using Knapsack Pro with Buildkite or AppVeyor

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