AppVeyor vs Buildkite comparison of Continuous Integration servers

	AppVeyor https://www.appveyor.com	Buildkite https://buildkite.com
Unique feature	Supports NuGet packages / Windows build environment	Runs on own infrastructure, API
Type of product	SaaS / On Premise	SaaS
Offers a free plan	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)	Yes Free for open source projects and selected organizations
Predictable pricing	Yes Very simple pricing plans: 3 options for the SaaS version, two options for the on premise option. No variable pricing.	Yes Clearly defined monthly and annual plans
Support / SLA	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.	Yes Depending on the plan, ranging from community support, all the way to an assigned Technical Manager, SLAs and live chat support.
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 the optimal way with Knapsack Pro	Yes Allows splitting tests to run on different VMs in parallel.	Yes Run an unlimited number of concurrent agents, and an unlimited number of concurrent jobs. You can run your tests in isolated Docker container per agent.
Distributed builds distributed means that tasks can be scaled horizontally, on multiple machines How to split tests in parallel in the optimal way with Knapsack Pro	N/A	Yes Run an unlimited number of concurrent agents, and an unlimited number of concurrent jobs
Containers support / Build environment	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.	Yes Since the agents run on your own infra, you're free to do whatever
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 dashboard is not as great as for other options in the market, but allows seeing project status at a glance.	Yes The Buildkite UI features great vizualisations that feature build times, error rates, and more.
Management support How easy is it to manage users / projects / assign roles and permissions and so on	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.	Yes
Self-hosted option	Yes	No
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 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.	Yes Pipelines are defined using an Yaml config file and allow for great flexibility in defining what each step of the process does.
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 Notifications are highly configurable, but visual reports such as code coverage is not easy to implement.	Yes
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?	N/A	Yes Integrations for GitHub, GitLab, BitBucket as well as SSO support (Google Suite, SAML, GraphQL API). Growing number of community plugins: https://buildkite.com/plugins
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.	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.	Yes You can find useful plugins like https://github.com/sj26/rspec-buildkite https://github.com/ticky/simplecov-buildkite etc
Specific language support: JavaScript	Yes Comes with node.js and io.js versions pre-installed. Also offers documentation on npm integration on their website.	No
Integrations 1st party support for common tools (like Slack notifications, various VCS platforms, etc)	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).	Yes Integrations for GitHub, GitLab, BitBucket as well as SSO support (Google Suite, SAML, GraphQL API)
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 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.	Yes Great GraphQL API, allows building your own dashboard with ease
Auditing	N/A	Yes
Additional notes	Very Windows oriented

Programming Language	Supported test runners	Installation guide	Knapsack Pro Library README / Source
Ruby	RSpec, Cucumber, Minitest, test-unit, Spinach, Turnip	Install	knapsack_pro gem
JavaScript	Cypress.io	Install	@knapsack-pro/cypress
JavaScript	Jest	Install	@knapsack-pro/jest
JavaScript / TypeScript	Any test runner in JavaScript	How to build native integration with Knapsack Pro API to run tests in parallel for any test runner	@knapsack-pro/core
Any programming language	Any test runner	How to build a custom Knapsack Pro API client from scratch in any programming language	-

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

AppVeyor

Buildkite

Supports NuGet packages / Windows build environment

Runs on own infrastructure, API

SaaS / On Premise

SaaS

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

N/A

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

Yes

Yes

N/A

Yes

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

N/A

Yes

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

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Buildkite parallel agents and how to use them for CI parallelisation

Buildkite parallelism integration

Introduction to CI parallelisation with Knapsack Pro

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

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

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