6 free alternatives to Buildkite

CircleCI's free plan gives you up to 30,000 credits per month, up to 5 active users, 2 GB storage, Docker, Linux, Arm, Windows, and macOS environments, plus up to 30 concurrent job runs for Docker, Linux VM, Arm VM, and Windows VM. It also includes 1 concurrent macOS job run, 5 self-hosted runner tasks, Docker layer caching, private orbs, deploys, and community support. This is still a capped free tier, but it covers broader execution environments and more users than Buildkite's Personal plan. It falls short on Linux hosted-agent minutes because CircleCI uses credits instead of a direct minute allowance. Switch here if you want broader runner and OS coverage without paying yet.

• Beats Buildkite: Broader execution environments and higher concurrency
• Falls short: No direct Linux hosted-agent minute allowance like Buildkite
• Who should switch: Switch if you need macOS, Windows, Arm, or self-hosted runner support alongside more parallel work.

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Bitrise's Hobby plan is free forever for one private app and unlimited public apps, with access for a team of one, community support, Linux Medium and macOS Medium build machines, a 90 minute build timeout, and 300 credits per month. It is aimed at mobile CI, so it also lines up well for iOS and Android pipelines that need managed build machines and app-focused workflows. Compared with Buildkite, the free plan is much narrower on general-purpose CI capacity, but it is more specialized for mobile projects. It falls short on team scale and overall throughput. Switch here if your main workload is a single mobile app and you want hosted mobile build machines.

• Beats Buildkite: Mobile app workflow focus with macOS build machines
• Falls short: Lower free throughput and smaller team allowance
• Who should switch: Switch if your main CI workload is iOS or Android and you only need one private app.

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Run My Job's free plan includes 1 integration with a GitLab or GitHub organization, 10 concurrent jobs, 12 vCPU and 32 GB of memory per job, 400 vCPU-minutes per month, and 800 GB-minutes per month. It is built around isolated microVM jobs, which makes it attractive when you want job isolation and high per-job resource limits on a free plan. Against Buildkite, it gives you more concurrent jobs and much larger per-job compute headroom, but it is more restrictive on integrations and GitHub runner usage. It falls short on the simpler general CI setup Buildkite offers across hosted and self-hosted agents. Switch here if you care more about isolated job capacity than agent flexibility.

• Beats Buildkite: Much higher concurrent jobs and per-job compute limits
• Falls short: Only 1 integration, with GitHub limited to organization accounts
• Who should switch: Switch if you want to run heavier jobs in isolation and can live with a narrower integration model.

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GitLab Free includes source code management and CI/CD access, up to 5 licensed users, 400 compute minutes per month, 10 GiB storage per project, and no included GitLab Duo Agent Platform credits. It is a strong fit when you want your repo, CI, and project workflow in one place rather than pairing a separate CI service with source hosting. It beats Buildkite on the all-in-one workflow, especially if you want git hosting and CI under one roof. It falls short on Buildkite's 3 concurrent jobs and 50k test executions because GitLab's free tier is more about the platform bundle than generous build limits. Switch here if you want an integrated DevSecOps workspace.

• Beats Buildkite: Built-in source hosting with CI/CD in one platform
• Falls short: Less CI-specific flexibility than Buildkite's pipeline-focused model
• Who should switch: Switch if you want repository hosting and CI together instead of a separate build system.

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Buddy's free plan includes 1 seat, 1 concurrent pipeline, 300 pipeline GB-minutes, 1 GB of pipeline cache, 300 sandbox CPU-minutes, and 730 sandbox GB-hours. It is geared toward deployment automation and platform engineering, with pipelines that can be defined through UI, YAML, or generated code in the broader product. Against Buildkite, Buddy is closer in shape for solo pipeline use and gives you sandbox resources in the free tier. It falls short on Buildkite's 3 concurrent jobs and broader hosted agent options, so it is less flexible for general CI scale. Switch here if you want a simple solo pipeline and care about sandboxed execution limits.

• Beats Buildkite: Sandbox resources and a simple solo pipeline model
• Falls short: Only 1 concurrent pipeline and a single seat
• Who should switch: Switch if you mainly run one pipeline at a time and want sandbox-oriented automation.

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Ownkube's free Starter tier gives you one AWS instance, unlimited applications, preview environments, GitHub deployments, certificate management, an incident agent, a cost agent, 7 days of monitoring, and community support. It is not a traditional CI runner, but it does offer a free path for teams that want GitHub-triggered deployments into their own AWS account. Compared with Buildkite, it gives you far more app deployment surface area for free, but it does not try to match Buildkite's test execution, concurrent jobs, or package storage model. It falls short as a general CI/CD engine. Switch here if your main need is deployment into your own cloud rather than build orchestration.

• Beats Buildkite: Unlimited apps and deployment workflows inside your own AWS account
• Falls short: Not a direct replacement for CI job orchestration and test execution
• Who should switch: Switch if you care more about app deployment and preview environments than runner-based CI.

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