Best CI/CD tools, ranked
Eight CI/CD tools scored on eight weighted criteria stated up front, with who each one suits, who should avoid it and a plain verdict.
The short answer: on GitHub Actions, put your jobs on Graphide CI for the same verdict with far less waiting. Need a full platform on your own machines? Buildkite. Already on GitLab? GitLab CI.
- Pipeline speed 20%
- Caching 10%
- Parallelism 10%
- Hosting model 10%
- Pricing transparency 10%
- Migration effort 15%
- Ecosystem 10%
- Fit for agent-written changes 15%
- How we rank
- #1
Our top pick if you are on GitHub Actions: same workflows, same pass/fail verdict, less waiting on every change.
- Best for
- Teams on GitHub Actions, especially where coding agents open many pull requests a day and every one waits on CI.
- Strength
- Keeps your GitHub Actions workflows: switching changes each x64 Linux job's runs-on line to graphide in one pull request
- Limit
- Not a full CI/CD platform: it runs your GitHub Actions jobs, so you need GitHub Actions
- Cost
- $0.003 a vCPU-minute ($0.006 a minute on a standard Linux runner), billed for the time a job would take without its speed-ups; $20 monthly minimum, spend cap you set; free trial with $10 of usage. Source
- #2
A quick, cheap runner swap for GitHub Actions with good caching; every change still runs every test.
- Best for
- GitHub Actions teams that want faster, cheaper machines across Linux, Windows and macOS without touching their workflows.
- Strength
- Swap the runs-on label to move a job; workflows stay as they are
- Limit
- A runner layer, not a CI/CD platform: needs GitHub Actions
- Cost
- Ubuntu x64 from $0.004 a minute (2 vCPU), Arm $0.0025, Windows $0.008, macOS M4 $0.08; 3,000 free minutes a month; add-ons extra. Source
- #3
The best pick when Docker image builds are the slow part, with Actions runners in the same plan.
- Best for
- Teams whose pipelines are dominated by container builds, and teams that want runners deployable in their own AWS account.
- Strength
- Container builds on large builders with persistent cache, which is where it is strongest
- Limit
- Plans start at $20 a month for one user; the team plan is $200 a month
- Cost
- Developer $20/month (1 user, 2,000 Actions minutes); Startup $200/month (20,000 minutes); extra Actions minutes $0.006 on a 2-vCPU Linux runner; Business is custom. Source
- #4
The strongest full platform for large monorepos and teams that must run builds on their own machines.
- Best for
- Larger engineering orgs with big monorepos, Bazel, or strict rules about where code runs.
- Strength
- Run agents on your own infrastructure while Buildkite hosts the control plane, or use its hosted agents
- Limit
- Pipelines are Buildkite's own YAML: moving from GitHub Actions is a rewrite
- Cost
- Free plan up to 5 users; Pro $30 per active user a month; hosted Linux agents $0.004 a vCPU-minute; Enterprise is custom. Source
- #5
The default for code on GitHub, with the biggest ecosystem; slow and costly at volume unless you speed it up.
- Best for
- Any team whose code lives on GitHub and wants CI with nothing new to buy or learn.
- Strength
- Built into GitHub: pull request checks, branch protection and secrets in one place
- Limit
- Standard 2-core hosted runners are slow for large builds and test suites
- Cost
- Linux 2-core $0.006 a minute; plans include a monthly compute allowance ($12 on Free, $18 on Team, $300 on Enterprise Cloud); free in public repositories. Source
- #6
A mature hosted platform with good test splitting and its own test selection, priced in credits.
- Best for
- Teams that want a dedicated CI product with timing-based test splitting, broad machine types and mobile builds.
- Strength
- Timing-based test splitting across parallel containers
- Limit
- Credits make costs harder to predict than per-minute pricing
- Cost
- Free plan with 30,000 credits a month (up to 6,000 small Docker build minutes); Performance from $15 a month; Scale is quoted. Credit rates per machine are on its price list. Source
- #7
The obvious choice if your code is on GitLab; a heavy move if it is not.
- Best for
- Teams already on GitLab, and regulated teams that want one self-managed or single-tenant platform for code and CI.
- Strength
- Code, merge requests, CI and security scanning in one product
- Limit
- Best when the code is on GitLab too; CI for external repositories is a paid feature
- Cost
- Free with 400 compute minutes a month; Premium $29 per user a month billed annually (10,000 minutes); Ultimate is quoted; extra minutes $10 per 1,000. Source
- #8
Free and endlessly flexible, but you own every machine, plugin and upgrade; rarely the right new choice.
- Best for
- Teams that must run fully air-gapped or on their own hardware, and already have people who maintain Jenkins.
- Strength
- Free, open-source (MIT licence) and runs anywhere, including air-gapped
- Limit
- You host, scale, secure and upgrade the controller and agents yourself
- Cost
- The software is free. You pay for the servers and the people who run it; no public figure exists, so estimate it from your own infrastructure bill. Source
The criteria and their weights
Every tool is scored 1 to 5 on the same eight criteria. The weights reflect what decides a CI choice for a team shipping every day: how long each change waits for a verdict, and how hard the tool is to adopt and leave. Read the full method and evidence rules.
Pipeline speed
How long does a typical change wait from push to a pass/fail verdict?
Caching
Are dependencies, build outputs and container layers already there when a job starts?
Parallelism
How easily can one change's work be split across many machines?
Hosting model
Can it run where your code and data have to run: managed, in your cloud, or on your own machines?
Pricing transparency
Can you work out next month's bill from the public pricing page alone?
Migration effort
How much of your existing pipeline do you have to rewrite to adopt it, and how easy is it to go back?
Ecosystem
How many ready-made integrations, actions or plugins can you use instead of writing your own?
Fit for agent-written changes
When coding agents open many more pull requests a day, does waiting time and cost grow with every change, or less than that?
Quick chooser by team situation
Find your situation, take the pick. The reasoning and what to watch out for are on best CI/CD tool by team.
Comparison table
Every tool against every criterion. Five dots is the best score; the total weights each criterion as shown.
| # | Tool | Speed | Caching | Parallel | Hosting | Pricing | Migration | Ecosystem | Agent fit | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Graphide CI | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | 94 |
| 2 | Blacksmith | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | 80 |
| 3 | Depot | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | 79 |
| 4 | Buildkite | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | 74 |
| 5 | GitHub Actions | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | 72 |
| 6 | CircleCI | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | 68 |
| 7 | GitLab CI | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | 64 |
| 8 | Jenkins | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | ●●●●● | 49 |
Questions people ask when choosing a CI/CD tool
What is the best CI/CD tool?
For teams on GitHub Actions, Graphide CI scores highest (94/100): it keeps your workflows and verdicts and cuts the wait with warm caches, parallel runners and running the tests each change can reach. For a full platform you run on your own machines, Buildkite. For teams on GitLab, GitLab CI. The best tool is the top-ranked one that fits your situation; the chooser above maps situations to picks.
Is GitHub Actions good enough?
For most teams on GitHub, yes as the place your workflows live. Where it falls short is waiting time: small standard runners, caches you wire up yourself and the full suite on every change. You can fix most of that without leaving it, by swapping runners and adding caches, parallel tests and test selection.
Do I need to switch CI to make it faster?
Usually not. Runner layers such as Graphide CI, Blacksmith and Depot run your existing GitHub Actions jobs by changing the runs-on line. Measure your current push-to-verdict time first, then compare on the same commits.
Which CI/CD tool is cheapest?
It depends on minutes, machine size and seats, so compare on your own volume. Published per-minute rates for a standard 2-vCPU Linux runner on the review date: GitHub Actions $0.006, Graphide CI $0.006 ($0.003 per vCPU-minute, $20 monthly minimum), Blacksmith $0.004, Depot $0.006 after plan minutes. Check what each one bills for: Graphide CI, for example, bills for the time a job would take without its speed-ups, so its saving is in waiting, not minutes.
Which CI/CD tool is best for self-hosting?
Buildkite, if you want your agents on your machines with a hosted control plane. GitLab self-managed if you want code and CI on your own servers in one product. Jenkins if it must be fully offline and you have people to maintain it.
How do coding agents change which CI tool to pick?
Agents multiply the number of changes waiting on CI. A tool where every change runs the whole suite scales its wait and cost with that volume; one that runs only the tests a change can reach, and falls back to running everything when it cannot tell, keeps the verdict and grows much less. That is why fit for agent-written changes is weighted at 15% here.
Is Jenkins still worth using in 2026?
Only where builds must run fully on your own hardware and you have people who maintain it. It is free to license but you build its speed, caching and test splitting yourself. It ranks last here for a new choice.
How often is this ranking reviewed?
The ranking, scores and prices were last reviewed on 9 November 2026. Prices come from each vendor's public pricing page on that date; follow the source link next to each price to check today's.