• Slack Integration

    In the last week, we extended our build notifications support to Slack.com! Slack is real-time messaging, archiving and search for modern teams.

    CircleCI’s chat notifications help everyone on your team to stay up-to-date with your latest build status. When a build fails or passes, you can see which commit triggered the build and who was responsible for pushing the code to GitHub. It’s a great way to stay on top of what your collaborators are working on and to quickly notice and fix broken builds.

    Continue reading “Slack Integration”


  • Simple and Transparent Pricing

    Great news everybody, we’ve simplified our pricing to make it as transparent and easy to understand as possible! Here’s a quick summary:

    • no more limits on projects

    • no more limits on parallelism

    • all plans are $19 for the first container and $50 for each additional container

    • all customers are grandfathered in

    If you’re interested in the specifics of the change and the thinking behind it, please read on.

    Continue reading “Simple and Transparent Pricing”


  • Adaptive Placeholders

    A while ago I designed an interactive placeholder thing for our forms and wrote it entirely in CSS. I made it assuming no one would ever notice, so you can imagine my surprise when I saw that it got featured on LittleBigDetails, one of my favorite blogs!

    Continue reading “Adaptive Placeholders”


  • Hall Integration

    We’ve just extended our build notifications support to Hall.com! Hall is beautifully designed group chat, IM and video chat for companies and teams.

    CircleCI’s chat notifications help everyone on your team to stay up-to-date with your latest build status. When a build fails or passes, you can see which commit triggered the build and who was responsible for pushing the code to GitHub. It’s a great way to stay on top of what your collaborators are working on and to quickly notice and fix broken builds.

    Continue reading “Hall Integration”


  • Heartbleed security update

    Heartbleed is a serious vulnerability in the SSL stack affecting a huge number of sites on the internet. In this post we address how we secured our servers in the wake of Heartbleed, and what actions customers should take to further protect themselves.

    Continue reading “Heartbleed security update”


  • We raised a $6m Series A

    When Allen and I started CircleCI, just over two years ago, our vision was simple: to make developers more productive. Last Friday we took another step towards that vision by raising a $6m Series A round from DFJ.

    It’s been about a year since we first raised our seed funding and since then we’ve focused exclusively on building our product. We didn’t focus on marketing or sales and we didn’t throw money into adwords. We committed every resource available to building the best product and the best experience possible for our customers, and something amazing happened: we began to grow.

    Continue reading “We raised a $6m Series A”


  • Silence is for the weak

    In yesterday’s “Vacations are for the weak”, Seth Bannon said: “Preventing burnout is part of your job. Staying well rested is part of your job.

    While we’re stating the obvious, I have another myth I’d like to put to rest: “Silence is for the weak”. Too many offices, managers, entrepreneurs and even other developers build offices full of noise and distractions, preventing developers from concentrating and doing our jobs.

    Continue reading “Silence is for the weak”


  • New CircleCI Stickers

    Stickers

    To commemorate our fresh new look, we have new CircleCI Stickers!

    Want some of your own? Email jenneviere@circleci.com and we’ll send a few your way!

    And in case you missed it, here’s how we came up with our new branding.

    Continue reading “New CircleCI Stickers”


  • A Perfect Circle

    How did we design our new logo? Our new designer, Danny King, explains:

    From start to finish the whole thing took about two months. I knew I couldn’t make something that was uniquely us without having a firm understanding of what Circle is and how the team works, so I spent the first month or so doing as much work in our tech stack as possible, trying to gain an insight into the the product and the people who make it. Much of that time was spent on research and fighting the urge to simply use a plain circle. There was a recurring theme that I kept noticing; despite its numerous complexities, Circle is a product of ingenious simplicity. My goal with the branding was to create something equally as simple in its complexities.

    Continue reading “A Perfect Circle”


  • Rewriting Your Test Suite in Clojure in 24 hours

    This is a story about how I built a compiler to automatically translate CircleCI’s 14,000 line test suite into another testing library, in about 24 hours.

    CircleCI’s test suite is probably one of the larger in the Clojure world today. Our server-side code is 100% Clojure, including the test suite, which is currently 14,000 lines, in 140 files, with 5,000 assertions. Without parallelization, it takes 40 minutes to run.

    Continue reading “Rewriting Your Test Suite in Clojure in 24 hours”


Get New Posts Delivered

Sign up to receive fortnightly blog highlights

Thank You for Submitting Your Info


You should receive an automated response notifying you that we received your info. Someone from our Enterprise team will be reaching out to you shortly.


CircleCI Success Logo