131 CircleCI Testimonials

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  • “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.”

  • “We chose CircleCI primarily for its ability to automatically parallelize tests across many workers. Another primary factor is its cost structure. The cost structure enables us to optimize infrastructure costs by provisioning spot instances on Amazon Web Services, instead of on-demand or reserved instances, and we can scale our compute up and down in response to demand. CircleCI’s robust API is also a plus, and has enabled us to implement time saving features--such as automatic bisect and time travel builds--which benefit the entire development team.”

  • "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."

  • “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.”

  • “CircleCI lets us be more agile and ship product faster. We can focus on delivering value to our customer, not maintaining CI infrastructure.”

  • “CircleCI makes our products better by allowing us to spend more energy testing them and less time managing a home-grown testing infrastructure.”

  • “We no longer have to build images locally and manually push them to Docker Hub. Our builds are more consistent and our deployment process is now easy and safe enough for anyone in the company to deploy to production.”

  • “Our old deployment process involved a spreadsheet of instructions and people to run them and took days. The new process has been fully automated from the start with CircleCI and Docker and takes only ~20 minutes.”

  • “CircleCI makes it incredibly easy to get new apps running. With our old service we had to manually setup the build for each app, but now CircleCI can figure out what we need automatically.”

  • “When running into performance troubles, adding new containers was a piece of cake. Every issue that I came across was quickly solvable, even when I needed technical support from the CircleCI team. The initial configuration was just a charm.”

  • “We also pride ourselves on iterating fast. It’s common for customers to request a feature or improvement and we ship it within hours or days—sometimes within minutes. Every time we do this, we can metaphorically hear jaws dropping on the other end of the support thread. We’ve won several deals this way, especially against competitors that can’t match our speed and quality. I can’t imagine how we could do this without CircleCI.”

  • “The fact is that in today’s world, companies need to make merge time to deploy time as short as possible. When looking for a CI solution that can scale really quickly, parallelize, distribute and optimize the run time in the split—and manage Docker as a first class citizen to help us manage the many systems inside—CircleCI comes out on top.”

  • "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."

  • "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."

  • "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.