AppVeyor vs Jenkins comparison of Continuous Integration servers

	AppVeyor https://www.appveyor.com	Jenkins https://jenkins.io
Unique feature	Supports NuGet packages / Windows build environment	Plugins
Type of product	SaaS / On Premise	Self-hosted / On Premise
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, open source software
Predictable pricing	Yes Very simple pricing plans: 3 options for the SaaS version, two options for the on premise option. No variable pricing.	Yes Jenkins is free software, the only costs are those assigned to running your infrastructure.
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.	No (partial) No official support available, or SLAs. However, Jenkins' popularity ensures you'll find support in various places (official Jenkins forum, IRC, StackOverflow etc.)
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 (partial) Jenkins allows builds to be run in parallel, but all builds share the same environment and there can be issues arising from shared resources such as the filesystem.
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 (partial) Jenkins has a concept of master server and agents, for distributing builds, but setting that up requires quite a bit of manual work from a sysadmin, compared to other options.
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.	No (partial) By default, Jenkins runs all builds in the same environment as the build server itself, which can lead to numerous issues and is generally not a good practice. Some plugins address this issue, but they need to be manually installed.
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 Available via the Blue Ocean project (part of Jenkins): https://jenkins.io/doc/book/blueocean/dashboard/#dashboard
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.	No In practice, for Jenkins it usually means that there's someone solely in charge of the Jenkins instance (configuration, management). Collaboration features built into other similar products are lacking, as are governance features (no easy way to tell from Jenkins alone _who_ is responsabile for a broken build, for example), even if your Version Control Server of choice can give that information (via `git blame` for example).
Self-hosted option	Yes	Yes Jenkins is Open Source Software, and self-hosting is the only way to use it.
Hosted plans / SaaS	Yes	No Only available for self-hosting.
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 Offers extensive support for custom pipelines, either through the Jenkins Pipeline DSL, written in a Jenkinsfile, either through the Web UI. Also, their Blue Ocean project is a great tool for building pipelines: https://jenkins.io/projects/blueocean/
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 Has ready-made integrations for standard reports such as JUnit test results.
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	> 1000 community plugins Thanks to it's popularity, there's a large selection of available plugins for Jenkins. They can all be easily browsed over at https://plugins.jenkins.io/. The downside is that almost anything you want to do in Jenkins requires installing a plugin, even core functionality such as parsing output or checking out source code.
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 (Partial) RSpec and Cucumber test suites can be integrated into Jenkins thanks to the large pool of available plugins and Ruby gems. Jenkins only understands the JUnit format natively.
Specific language support: JavaScript	Yes Comes with node.js and io.js versions pre-installed. Also offers documentation on npm integration on their website.	Yes (Partial) Jest, AVA and other test suites can be integrated into Jenkins thanks to the large pool of available plugins and NPM packages. Jenkins only understands the JUnit format natively.
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 Allows integrations with other tools (ie: Slack, GitHub) or communication protocols (ie: email) via it's rich plugin suite
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 For use-cases that the +1k plugins don't cover, the Jenkins Remote API is yet another way to integrate Jenkins into your favorite tools or internal products.
Auditing	N/A	No Jenkins instances are really managed by a sole user with administrative privileges. This can lead to various issues when it comes to audit trails / accountability.
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 Jenkins comparison of Continuous Integration servers What are the differences between AppVeyor and Jenkins?

AppVeyor

Jenkins

Supports NuGet packages / Windows build environment

Plugins

SaaS / On Premise

Self-hosted / On Premise

Yes

Yes

Yes

Yes

Yes

No (partial)

Yes

Yes (partial)

N/A

Yes (partial)

Yes

No (partial)

Yes

Yes

Yes

No

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

N/A

> 1000 community plugins

Yes

Yes (Partial)

Yes

Yes (Partial)

Yes

Yes

Yes

Yes

N/A

No

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Continuous delivery pipelines in Jenkins and CI parallelisation

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

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

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