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Atlantis vs Terramate Comparison

Last updated:

Atlantis

4.5(290 reviews)

Starting at Free free

  • Small Business
  • Mid-Market

Atlantis is an open-source Terraform pull request automation tool that runs Terraform plan and apply operations from GitHub, GitLab, and Bitbucket pull requests. When a PR is opened touching Terraform files, Atlantis aut…

Terramate

4.6(125 reviews)

Starting at Free free

  • Small Business
  • Mid-Market

Terramate is an open-source IaC orchestration and code generation tool that adds a layer of automation on top of Terraform and OpenTofu. It detects which stacks have changed and runs Terraform commands only on affected s…

Terramate leads on user satisfaction with a 4.6-star rating across 125 reviews.

Atlantis vs Terramate — at a glance

FeatureAtlantisTerramate
Rating4.5 / 54.6 / 5
Reviews290125
Starting priceFree freeFree free
Free trial No No
Free version No No
Best forSmall Business, Mid-Market, EnterpriseSmall Business, Mid-Market, Enterprise
CategoryCloud Management PlatformCloud Management Platform
PlatformsOn-Premise, Linux, CloudCloud, On-Premise
APIAvailableAvailable
Support modesGitHub Issues, Community Slack, DocumentationGitHub Issues, Discord Community, Help Center, Enterprise Support

Key differences between Atlantis and Terramate

  • Pricing: Atlantis starts at Free free, while Terramate starts at Free free.
  • User satisfaction: Terramate scores higher with a 4.6-star average.
  • Deployment: Atlantis supports On-Premise, Linux, Cloud; Terramate supports Cloud, On-Premise.

Atlantis vs Terramate — find the better fit before you commit.

01

Which tool fits your team best

02

Which is actually cheaper for your team size

03

Where each product wins, per real buyers

Most Cloud Management Platform tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.

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Atlantis vs Terramate: Biggest differences

Start here before you go deeper into features.

Atlantis

Best for

Small Business, Mid-Market, Enterprise

Terramate

Best for

Small Business, Mid-Market, Enterprise

Atlantis typically suits Small Business and Mid-Market. Terramate tends to fit Small Business and Mid-Market better. The right choice depends on your team size, workflow, and whether a free trial matters.

Description

Atlantis is an open-source Terraform pull request automation tool that runs Terraform plan and apply operations from GitHub, GitLab, and Bitbucket pull requests. When a PR is opened ... Read More about Atlantis

Terramate is an open-source IaC orchestration and code generation tool that adds a layer of automation on top of Terraform and OpenTofu. It detects which stacks have changed and runs ... Read More about Terramate

Entry Level Pricing

  • Starts from Free
  • Starts from Free

Free Trial Availability

  • No free trial
  • No free trial

SpotScore

What's this? ↗

9.0/10

9.2/10

User Ratings

Based on verified Spotsaas reviews
Get pricing help
Get pricing help

Where each option fits best

See where each product is strongest, which teams it fits, and what causes buyers to keep looking — before you commit.

Based on buyer reviews and verified product data collected by Spotsaas.

Strengths

Key strengths

Atlantis

  • Terraform Review in the Code Review: Plan output in PR comments means reviewers see infrastructure changes alongside code changes — keeping IaC review in the existing GitHub workflow.
  • Zero State Corruption: Workspace locking serializes applies — only one apply runs per workspace at a time, preventing the concurrent-apply state corruption that plagues team Terraform.
  • Audit Trail in Git: Every plan and apply is tied to a PR, commit, and GitHub user — complete audit history of who changed what infrastructure and when.

Terramate

  • Faster IaC CI/CD: Change detection means only the 3 stacks touched in a PR run plan/apply — not all 100 stacks in the monorepo, reducing pipeline time by 95%.
  • DRY Infrastructure Code: Code generation eliminates copy-pasted Terraform modules across stacks — change a template once and regenerate all stacks consistently.
  • Parallel Stack Execution: Dependency-aware parallel execution runs independent stacks simultaneously — further reducing total apply time in large environments.
Best fit

Best fit

Atlantis

  • DevOps teams implementing Terraform PR workflows without the operational overhead of Terraform Cloud or managed platforms
  • Engineering teams preventing concurrent Terraform state corruption through workspace locking in multi-engineer environments
  • Platform teams providing developers self-service infrastructure deployment via PR-comment-driven apply without giving direct Terraform access

Terramate

  • Platform teams with large Terraform monorepos (50+ stacks) where full-repo CI/CD runs take too long to be practical
  • DevOps teams solving Terraform code duplication with code generation to maintain consistent module patterns across many stacks
  • Teams wanting drift detection and IaC collaboration features at lower cost than Spacelift or Terraform Cloud

Software Demo

Demo

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How do Atlantis and Terramate Compare on Features?

Total Features

3 Features

6 Features

Unique Features

No unique features

No unique features

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Compare Atlantis and Terramate on pricing

Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.

Pricing Option

      Starting From

      • Free
      • Free

      Pricing Plans

      • Open Source

        Free

        • Full features

        • Apache 2.0

        • Self-hosted

        Show more +

      • Open Source

        Free

        • Full CLI features

        • Apache 2.0

        • Self-hosted

        Show more +

      • Terramate Cloud Free

        Free

        • Managed CI/CD

        • Drift detection

        • Dashboard

      • Terramate Cloud Pro

        $49

        paid

        • Team features

        • Priority support

        • SSO

        Show more +

      Atlantis vs Terramate: Other Details

      Organization Types supported

      • Small Business
      • Large Enterprises
      • Medium Business
      • Freelancers
      • Individuals
      • Small Business
      • Large Enterprises
      • Medium Business
      • Freelancers
      • Individuals

      Platforms Supported

      • Browser Based (Cloud)
      • Installed - Windows
      • Installed - Mac
      • Browser Based (Cloud)
      • Mobile - Android
      • Browser Based (Cloud)
      • Installed - Windows
      • Installed - Mac
      • Browser Based (Cloud)
      • Mobile - Android

      Modes of support

      • 24/7 (Live rep)
      • Business Hours
      • Online
      • 24/7 (Live rep)
      • Business Hours
      • Online

      API Support

      • Available
      • Available
      Get help choosing
      Get help choosing

      Atlantis User Reviews & Rating Comparison

      User Ratings

      4.5

      (based on 290 reviews)

      4.6

      (based on 125 reviews)

      Rating Distribution

      0

      0

      0

      0

      0

      0

      0

      0

      0

      0

      Spotsaas Editor’s POV generated by AI

      Buyer sentiment

      Buyer sentiment is very strong across 290 reviews, with consistently positive feedback.

      What buyers like

      • Free and open-source (Apache 2.0) with thousands of production deployments — the most battle-tested Terraform PR automation workflow available.
      • PR-comment-driven workflow (`atlantis plan`, `atlantis apply`) is simple, auditable, and requires no new UI to learn — all workflow happens in the existing code review process.
      • Workspace locking prevents concurrent applies to the same Terraform workspace — the most common cause of Terraform state corruption in team environments.

      Common complaints

      • Self-hosted only — requires a server to run Atlantis and webhook configuration for each repository, with ongoing maintenance responsibility.
      • Does not scale as cleanly as managed platforms for very large numbers of stacks — teams with 100+ stacks often outgrow Atlantis and move to Spacelift or Terraform Cloud.

      Buyer sentiment

      Buyer sentiment is very strong across 125 reviews, with consistently positive feedback.

      What buyers like

      • Change detection that runs Terraform only on affected stacks is a significant CI/CD speed improvement for large monorepos with 50+ stacks — reducing 2-hour pipelines to minutes.
      • Code generation enables DRY Terraform modules without duplicating HCL across stacks — the biggest maintenance problem in large Terraform repositories.
      • Apache 2.0 open-source CLI with a functional free cloud tier makes evaluation and adoption accessible without upfront commitment.

      Common complaints

      • Newer and less established than Atlantis or Spacelift — fewer production deployments and less community knowledge for troubleshooting edge cases.
      • Code generation abstraction layer adds complexity; teams must learn Terramate HCL on top of Terraform HCL.

      Pros and Cons

      • Free and open-source (Apache 2.0) with thousands of production deployments — the most battle-tested Terraform PR automation workflow available.

      • PR-comment-driven workflow (`atlantis plan`, `atlantis apply`) is simple, auditable, and requires no new UI to learn — all workflow happens in the existing code review process.

      • Workspace locking prevents concurrent applies to the same Terraform workspace — the most common cause of Terraform state corruption in team environments.

      • Self-hosted only — requires a server to run Atlantis and webhook configuration for each repository, with ongoing maintenance responsibility.

      • Does not scale as cleanly as managed platforms for very large numbers of stacks — teams with 100+ stacks often outgrow Atlantis and move to Spacelift or Terraform Cloud.

      • Change detection that runs Terraform only on affected stacks is a significant CI/CD speed improvement for large monorepos with 50+ stacks — reducing 2-hour pipelines to minutes.

      • Code generation enables DRY Terraform modules without duplicating HCL across stacks — the biggest maintenance problem in large Terraform repositories.

      • Apache 2.0 open-source CLI with a functional free cloud tier makes evaluation and adoption accessible without upfront commitment.

      • Newer and less established than Atlantis or Spacelift — fewer production deployments and less community knowledge for troubleshooting edge cases.

      • Code generation abstraction layer adds complexity; teams must learn Terramate HCL on top of Terraform HCL.

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      Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].

      Frequently asked questions

      Which is better, Atlantis or Terramate?
      Terramate edges out the other on user ratings (4.6 vs 4.5). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
      Do Atlantis and Terramate offer a free trial?
      Neither Atlantis nor Terramate currently lists a free trial.
      What is the starting price of Atlantis vs Terramate?
      Atlantis starts at Free free. Terramate starts at Free free.