CircleCI review

CircleCI is the most flexible standalone CI service on this list. The Free plan gives up to 6,000 build minutes on a small Docker resource class, up to 5 active users and 30x concurrency across Docker, Windows, Linux, Arm, macOS and self-hosted runners. The Performance plan starts at $15 per month, includes 30,000 free credits, raises concurrency to 80x and sells more credits at $15 per 25,000, with paid credits rolling over for up to a year. Bulk purchases start at 1 million credits for $600. Orbs package common configuration so teams can reuse deployment steps, and the docs include migration guides from Jenkins, GitHub Actions, GitLab and Travis CI. The trade-off is forecasting: machine size, users, network, storage and Docker layer caching all draw on the same credit balance, so a growing team needs to watch usage. GPU machines and the largest classes sit on the annual Scale plan.

Who it is for

Teams that want a dedicated CI service with many machine sizes and pay-for-what-you-use billing.

Price

Free plan with up to 6,000 build minutes; Performance plan from $15 per month.

Starting at $15 /month
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Docker, Windows, Linux, Arm, macOS and self-hosted runners
• Orbs: reusable configuration packages for common deployment targets
• Docker layer caching at 200 credits per job run
• Migration guides from Jenkins, GitHub Actions, GitLab, Travis CI and others
• GPU resource classes on the Scale plan

Strengths and weaknesses

• Strength: Free plan includes up to 6,000 build minutes and 5 active users
• Strength: Paid credits roll over month to month for up to a year
• Strength: Wide choice of machine types, including M4 Pro macOS
• Weakness: Credit-based billing takes effort to forecast
• Weakness: Each user beyond 5 on Performance adds $15 per month
• Weakness: GPU and the largest machines require the annual Scale plan

Key facts

• Free plan: Yes, up to 6,000 build minutes and 5 active users
• Concurrency: 30x on Free, 80x on Performance
• Extra credits: $15 per 25,000 credits

Where it ranks

CircleCI is No. 2 in our Best CI/CD Tools verdict.