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Developer Tools · head to head

Atlantis vs Puppeteer

Atlantis logo

Atlantis

Developer Tools

Runs Terraform plan and apply from pull request comments, self-hosted and free

From
Free
Rated
-
Full reviewWebsite
Puppeteer logo

Puppeteer

Testing

Node.js library for controlling Chrome and Firefox

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Atlantis there is no company, no service level agreement and no paid support at any price, and the six maintainers are volunteers with day jobs, which some risk committees will not accept for a component holding production cloud credentials.; Puppeteer chrome and Firefox only, with no Safari or WebKit story
  • They diverge on capability: Atlantis covers Pull request plans, Puppeteer covers DevTools Protocol.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Atlantis and Puppeteer actually diverge.

Attributes where Atlantis and Puppeteer differ
AttributeAtlantisPuppeteer
PlatformsLinux, Docker, Kubernetes, Self-hostedLinux, macOS, Windows
CategoryDeveloper ToolsTesting

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Atlantis

  • Pull request plans
  • Comment driven apply
  • Workspace locking
  • Policy checking
  • Multi-platform webhooks
  • Custom workflows

Only in Puppeteer

  • DevTools Protocol
  • Headless by default
  • PDF and screenshots
  • Network interception

What people use each for

The jobs each tool is most often brought in to do.

Atlantis

  • Making Terraform review meaningful by putting the actual plan output in front of the approvernot Puppeteer
  • Removing local applies and the credential sprawl that comes with every engineer holding production keysnot Puppeteer
  • Getting pull request driven infrastructure without paying a per-user subscription for a hosted platformnot Puppeteer
  • Enforcing Conftest policies as a blocking check before an apply can runnot Puppeteer

Puppeteer

  • Generating PDFs or screenshots of rendered pages on a servernot Atlantis
  • Scraping sites that require JavaScript executionnot Atlantis
  • Automating browser tasks where a full test framework is unnecessarynot Atlantis

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Atlantis

  • There is no company, no service level agreement and no paid support at any price, and the six maintainers are volunteers with day jobs, which some risk committees will not accept for a component holding production cloud credentials.
  • The security surface is inherently sharp, because it is an internet-reachable webhook endpoint that executes applies with privileged credentials, gated by pull request comment authorisation that is coarse next to a real policy engine.
  • It is stateful, holding a working directory and lock database on local disk, so high availability and horizontal scaling are awkward and you own upgrades, webhook plumbing, secret rotation and the host itself.
  • It lacks the features that distinguish the commercial alternatives, with no native drift detection, no cost estimation, no managed state interface and no policy engine beyond the Conftest integration.
  • Terragrunt and monorepo layouts are not first-class, requiring hand-written custom workflows and repository configuration that becomes a growing maintenance burden as the number of repositories increases.

Puppeteer

  • Chrome and Firefox only, with no Safari or WebKit story
  • Not a test framework: assertions, retries and reporting need Jest or similar bolted on
  • Bundles a Chromium download, which makes installs large and awkward in constrained CI images

Pricing, plan by plan

Atlantis

Free
  • AtlantisFree
    • Apache-2.0, no usage limits and no seat count
    • No commercial edition and no paid support tier
    • Community support through GitHub and the CNCF Slack channel

Puppeteer

Free
  • PuppeteerFree
    • Full functionality
    • Unlimited tests
    • Community support

Which should you pick?

Choose Atlantis if

  • You need pull request plans.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want comment driven apply.
Atlantis review

Choose Puppeteer if

  • You need devtools protocol.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want headless by default.
Puppeteer review

Questions people ask

Is Atlantis or Puppeteer better?
Neither clearly leads. Atlantis starts at Free and Puppeteer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Atlantis or Puppeteer?
Atlantis starts at Free and Puppeteer at Free.
Does Atlantis or Puppeteer run on more platforms?
Atlantis runs on Linux, Docker, Kubernetes, Self-hosted. Puppeteer runs on Linux, macOS, Windows.
Can I use Atlantis for free?
Both have a free tier, so you can try either at no cost before committing.
What is Atlantis best used for?
Atlantis is most often used for making terraform review meaningful by putting the actual plan output in front of the approver, removing local applies and the credential sprawl that comes with every engineer holding production keys, getting pull request driven infrastructure without paying a per-user subscription for a hosted platform, enforcing conftest policies as a blocking check before an apply can run. Of those, making terraform review meaningful by putting the actual plan output in front of the approver and removing local applies and the credential sprawl that comes with every engineer holding production keys are not what Puppeteer is typically brought in for.
What can Atlantis do that Puppeteer cannot?
Atlantis covers Pull request plans, Comment driven apply, Workspace locking, Policy checking. Puppeteer covers DevTools Protocol, Headless by default, PDF and screenshots, Network interception.

Answered from the vendors’ own pages

Atlantis: Is there a company behind Atlantis?

No. It runs as a series of LF Projects under the Linux Foundation and is maintained by volunteers. There is no vendor to buy support from and no service level agreement.

Puppeteer: Is Puppeteer free?

Yes, open source from the Chrome team.

Atlantis: Is it a CNCF project?

No. It uses a channel in the CNCF Slack, which is often misread as membership, but the project sits under LF Projects rather than the CNCF.

Puppeteer: Puppeteer or Playwright?

Playwright came from the same original team, adds WebKit and Firefox support, automatic waiting and a test runner. Puppeteer stays a focused Chrome automation library, which is simpler if automation rather than testing is the goal.

Atlantis: Does it work with OpenTofu?

Yes, there is a dedicated integration guide alongside Terraform, and it also has configuration for working with hosted Terraform backends.

Puppeteer: Can Puppeteer generate PDFs?

Yes, and it is one of the most common uses — rendering a page and printing it to PDF server-side.

Atlantis: What does it not do that a paid platform does?

Drift detection, cost estimation, a managed state and run interface, and a real policy engine. Atlantis does pull request plan and apply well and stops there.

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