Best CircleCI Alternatives in 2026

For most teams on GitHub, the best CircleCI alternative is GitHub Actions: it is already next to your code and has no separate credit system. Buildkite suits teams that want to run their own agents, GitLab CI suits teams that live in GitLab, and Semaphore is a close like-for-like. Pricing below was checked in October 2026 on each vendor's public page.

Why teams look for alternatives to CircleCI

CircleCI is mature and fast to configure, so teams leave for specific reasons.

• Credits instead of minutes. Its pricing page sells credits at $15 per 25,000 ($0.0006 each). A Linux Medium job uses 10 credits a minute, so 30,000 credits is 3,000 minutes. Other resource classes use different rates, so forecasting takes a spreadsheet.
• Credits expire. Free and included Performance credits do not roll over, and purchased credits expire after 12 months. Unused credits are forfeited if you cancel.
• Extras are metered. Docker layer caching costs 200 credits per job run, network and storage overages 420 credits per GB, and IP ranges 450 credits per GB.
• A second system to run. If code and reviews are on GitHub, CI lives elsewhere, with its own permissions and secrets.
• Free plan limits. 30,000 free credits a month, 5 active users, community support only.
• Per-user wording is unclear. The page mentions additional users at $15 a month in one place and extra credits per user in another, so confirm before you buy.

CircleCI still has strengths: orbs, good test splitting and insights, and open source projects get up to 400,000 credits a month on Linux, Arm and Docker.

Quick picks

The alternatives

GitHub Actions

Workflows live in .github/workflows beside your code, and a GitHub-hosted 2-core Linux runner is $0.006/min, 8-core is $0.022/min (list prices after the January 2026 cut). Free minutes depend on your plan. The tradeoff: hosted runners are small and often slower than CircleCI's larger resource classes, and the marketplace's quality varies. This is the default pick for GitHub teams.

GitHub Actions on compiler.dev

If speed was a reason you picked CircleCI's bigger machines, keep Actions and change one line, runs-on: [self-hosted, Linux, compiler-ci]. Jobs run on a fresh 8 vCPU / 16 GB VM at $0.012/min, with credit that never expires and automatic fallback to your original runners. Our benchmarks measured GitHub-hosted against compiler.dev at median 1.5× faster across 18 measured stacks (15 faster, 2 the same, 1 slower); we did not benchmark CircleCI. No Arm or Windows, and macOS is early access.

Buildkite

Pipelines are defined in YAML and run on agents you host (10 included on Pro, then $3.50 per agent per month), or on hosted Linux agents at $0.004 per vCPU minute. Pro is $30 per active user a month. It scales well and keeps code on your machines. The tradeoff is operating the agents and per-user pricing.

GitLab CI

Excellent if your source is on GitLab. Free gives 400 compute minutes, Premium is $29 per user a month with 10,000, and extra minutes cost $10 per 1,000. Tradeoff: moving only CI to GitLab while code stays on GitHub is awkward.

Semaphore

The closest like-for-like: pay as you go, $15 of free credit a month (about 2,000 Ubuntu 2 vCPU minutes), Ubuntu x64 2 vCPU at $0.0075/min, Arm at $0.003/min, macOS at $0.09/min. Tradeoff: a smaller ecosystem than Actions.

Jenkins

Free software, and you can run anything anywhere. You host it, patch it and look after plugins. Its advisory list shows roughly monthly security advisories, 12 in 2025.

How to choose

1. Where does your code live? If GitHub, start with Actions; if GitLab, GitLab CI.
2. How big are your jobs? If CircleCI's large resource classes mattered, plan for a faster runner provider, not the default 2-core.
3. Do you want to run infrastructure? Buildkite and Jenkins say yes, the others say no.
4. Cost out last month with the Actions cost calculator and read GitHub Actions pricing.

Migration notes

CircleCI's config.yml has jobs, executors and orbs. GitHub's Actions Importer (gh actions-importer) can audit and convert much of it, but plan to review the output by hand. A typical job maps like this:

# CircleCI
jobs:
  test:
    docker:
      - image: cimg/node:20.11
    resource_class: large
    steps:
      - checkout
      - run: npm ci && npm test

# GitHub Actions
jobs:
  test:
    runs-on: [self-hosted, Linux, compiler-ci]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
      - run: npm ci && npm test

Orbs become marketplace actions or reusable workflows. Caching changes from save_cache to actions/cache; see GitHub Actions caching. Run both systems in parallel for a week before cancelling. For the full comparison with compiler.dev, see CircleCI vs compiler.dev. For leaving Actions or CI vendors more broadly, read the Actions alternatives guide.

FAQ

What is the best free CircleCI alternative?

For GitHub projects, GitHub Actions: free minutes depend on your plan. Semaphore has $15 of monthly credit, and Buildkite's free plan has 2,000 Linux vCPU minutes.

Is GitHub Actions cheaper than CircleCI?

It depends on machine size. A GitHub 2-core runner is $0.006/min versus 10 credits ($0.006) per minute for a CircleCI Linux Medium. Compare at the same size and add credit expiry and Docker layer caching fees.

How long does a CircleCI migration take?

A simple project can take a day. Large setups with many orbs and custom executors take longer, so run both systems in parallel.

Can I keep CircleCI's speed on GitHub Actions?

Yes, by using a faster runner provider rather than default hosted runners.