20,000 teams trust & use CircleCI

Fast. Functional. Flexible. Join thousands of other developer teams in trusting CircleCI for your testing and CI/CD needs.

The first container is free + each additional container is $50/month

Build on both Linux and OS X? Start a free 2-week OS X trial which allows you to build on both

Looking for something custom?
Interested in an open-source discount?

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Adam Haney
CTO at Bellhops
“Whether I'm consulting for other businesses or starting a new project myself CircleCI is always on my checklist for setting up the engineering team's testing infrastructure.”
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Matt Kent
Head of Engineering at Sprig
“CircleCI is an excellent product and was the clear winner over the alternatives when I tried them all out: I was able to get a green build the fastest and hit the fewest bumps.”
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Calvin-French Owen
CTO/Co-founder at Segment
“CircleCI has saved us a ton of time from maintaining our own CI, and we love the ability to both dynamically scale the number of containers and debug manually via SSH when first setting up a project. It's a great tool.”
John Duff
Director of Engineering at Shopify
“CircleCI lets us be more agile and ship product faster. We can focus on delivering value to our customer, not maintaining CI infrastructure.”
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Arthur Neves
Developer at Shopify
“One of my favorite things about CircleCI is that their team really cares about making sure their customers get maximum value out of their product.”
Ian Lotinsky
CTO at LearnZillion
“CircleCI makes our products better by allowing us to spend more energy testing them and less time managing a home-grown testing infrastructure.”
Hemal Shah
Product Manager for Mobile Developer Tools at Fabric
“fastlane is built around the principle of continuous deployment. Having a partner like CircleCI that is consistent and reliable enables us to not only deliver the best value to our customers, but deliver it with total confidence.”

Frequently Asked Questions

How do I get started?

Linux plans start with the ability to run one build simultaneously without parallelism at no charge. Open source projects get 3 additional free containers, so you can use the power of parallelism and/or run more than one build concurrently. Purchasing a Linux plan enables access to additional containers at $50/container/month.

During the signup process, you can decide which plan(s) you need—you can build for free regardless!

How do containers work?

Every time you push to your VCS system, we checkout your code and run your build inside of a fresh, on-demand, and isolated Linux container pre-loaded with most popular languages, tools, and framework. CircleCI, in many cases, will detect and automatically download and cache your dependencies, and you can fully script any steps or integrations.

What is concurrency? What is parallelism?

Concurrency refers to utilizing multiple containers to run multiple builds at the same time. Otherwise, if you don't have enough free containers available, your builds queue up until other builds finish.

Parallelism splits a given build’s tests across multiple containers, allowing you to dramatically speed up your test suite. This enables your developers to finish even the most test-intensive builds in a fraction of the time.

How many containers do I need?

Most of our customers tend to use about 2-3 containers per full-time developer. Every team is different, however, and we're happy to set you up with a trial to help you figure out how many works best for you. As your team grows and/or as the speed of your build grows you can scale to any number of containers at any level of parallelism and concurrency is right for your team.

Why should I trust CircleCI with my code?

Security is one of our top priorities. Read our security policy to learn more about why many other customers rely on CircleCI to keep their code safe.

Can I change my plan at a later time? Can I cancel anytime?

Yes and yes! We offer in-app tools to fully control your plan and have account managers and an international support team standing by when you need help.

What if I want something custom?

Most of our customers find that our fully scriptable build configuration and dependency caching gives them broad leeway in customizing their build. If you require running behind your firewall or have specialized needs for your build fleet contact us; we're here to help teams of all sizes ship better code, faster.

What if I am building open-source?

We offer a total of four free linux containers ($2400 annual value) for open-source projects. Simply keeping your project public will enable this for you!

We also offer the Seed plan free for OS X open-source projects. Contact us at billing@circleci.com for access. If you are building a bigger open-source project and need more resources, let us know how we can help you!

Start with a free 2-week OS X trial

Seed

$39/mo
2x concurrency
Recommended for teams building 1-5 builds/day
500 max minutes/month
Community support
Recommended for 1-2 team members

Startup

$129/mo
5x concurrency
Recommended for teams building 5-10 builds/day
1,800 max minutes/month
Engineer support
Recommended for unlimited team members

Mobile focused

$449/mo
12x concurrency
Recommended for teams building more than 20 builds/day
25,000 max minutes/month
Priority support & Account manager
Recommended for unlimited team members

Interested in an open-source discount?

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Dan Rummel
CTO at Shyp
“CircleCI is one of our favorite services. It's an essential part in maintaining our high quality of work. Best of all, they make CI/CD almost too easy.”
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“We could not ask for more from a CI service in today’s mobile-first world.”
Hemal Shah
Product Manager for Mobile Developer Tools at Fabric
“fastlane is built around the principle of continuous deployment. Having a partner like CircleCI that is consistent and reliable enables us to not only deliver the best value to our customers, but deliver it with total confidence.”

Frequently Asked Questions

Why would I choose an OS X plan (as opposed to a Linux Plan)?

If you develop for Apple-related software (e.g., you are an iOS developer), you will likely need an OS X plan to ensure your tests run on our secure, private cloud of OS X machines.

OS X plans start with a two-week trial with access to our Growth Plan (5x concurrent builds). At the end of your two-week trial, you may choose the plan that fits your needs best.

Linux plans allow customers to build on multiple isolated Linux systems. All customers get 1 free linux container and then Linux plans offer access to additional containers available at $50/container.

What plan do I need?

We’ve provided recommendations based on the ranges of builds but every team is different regarding their frequency and length of builds—as well as their need for engineer support.

To solve for this, everyone starts with a free 2-week trial at the Growth Plan which will help you determine all of those factors. We are happy to help you work through which plan is right for your team.

What is concurrency?

Concurrency refers to running multiple jobs at the same time (e.g., with 2x concurrency, two builds triggered at the same time will both kick off, but on 1x concurrency one build will queue, waiting for resources).

Concurrency avoids slow-downs in work as your builds may otherwise queue behind the builds of someone else on your team.

What if I go over the minutes allotted for a given plan?

Minutes and overages ensure we can stabilize capacity while offering as much power as possible which should hopefully lead to the greatest possible utility all around.

Overages are as follows:

  • Seed & Startup: .08/minute
  • Venture: .05/minute
  • Mobile Focused: .035/minute

Users will be alerted in-app as they approach the limit and upon passing their respective limit.

Feel free to reach out to billing@circleci.com with any additional questions.

Can I change my plan at a later time? Can I cancel anytime?

Yes and yes!

What if I want something custom?

Most of our customers find that our fully scriptable build configuration and dependency caching gives them broad leeway in customizing their build. If you require running behind your firewall or have specialized needs for your build fleet contact us; we're here to help teams of all sizes ship better code, faster.

What if I am building open-source?

We offer a total of four free linux containers ($2400 annual value) for open-source projects. Simply keeping your project public will enable this for you!

We also offer the Seed plan for OS X open-source projects. Contact us at billing@circleci.com for access. If you are building a bigger open-source project and need more resources, let us know how we can help you!

CircleCI Enterprise is available for a free, no-obligation 30 day trial

Please fill out the form below and tell us a little about your team. We will respond quickly to provide you with access and a trial key.

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Or call 415.580.0944 for an Enterprise quote.

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Colin Desa
CTO at Kit Check
“At Kit Check being able to rapidly build and deploy new features in response to customer need is a huge competitive differentiator. CircleCI plays a very important role in making this possible.”
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Matt Wise
Senior Systems Architect at Nextdoor
“Switching to CircleCI Enterprise has allowed our engineers to build and release mobile and web projects with far greater simplicity, speed and performance.”
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Jason Riggins
Director, Production Engineering at Manheim
“With CircleCI Enterprise our DevOps team spends less time on busy work that bottlenecks our engineers and more time improving productivity.”

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