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Developer Tools · head to head

Earthly vs Rust

Earthly logo

Earthly

Developer Tools

Engineering guardrails for the AI era

From
Free
Rated
-
Full reviewWebsite
Rust logo

Rust

Developer Tools

A language empowering everyone to build reliable and efficient software

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Earthly pricing model not published; requires sales contact; Rust compile times significantly longer than languages like Go or C
  • They diverge on capability: Earthly covers Policy as code, Rust covers Memory safety.

Where they differ

Only the attributes on which Earthly and Rust actually diverge.

Attributes where Earthly and Rust differ
AttributeEarthlyRust
Pricing modelNo pricing published on websiteopen-source
PlatformsWeb, CLIWindows, Linux, macOS
Founded20202010

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Developer Tools).

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 Earthly

  • Policy as code
  • Multi-stage enforcement
  • AI agent governance
  • Repository-wide policies
  • Incident response automation
  • Compliance management
  • Earthfiles build tool
  • Satellites

Only in Rust

  • Memory safety
  • Zero-cost abstractions
  • Ownership system
  • Pattern matching
  • Type inference
  • Cargo package manager
  • Cross compilation
  • Fearless concurrency

What people use each for

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

Earthly

  • Enforcing engineering standards across AI and human developersnot Rust
  • Automating incident response procedures across all repositoriesnot Rust
  • Embedding compliance requirements into development workflowsnot Rust
  • Standardizing build processes with Earthfilesnot Rust

Rust

  • Systems programming and operating system developmentnot Earthly
  • Performance-critical applicationsnot Earthly
  • Embedded systems and firmwarenot Earthly
  • Network services and concurrent applicationsnot Earthly

Where each one falls short

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

Earthly

  • Pricing model not published; requires sales contact
  • Earthly Lunar is a recent launch (2025) with limited track record
  • Primarily GitHub-focused; limited integration with other platforms
  • No public documentation on pricing or feature tiers

Rust

  • Compile times significantly longer than languages like Go or C
  • Smaller ecosystem of libraries and frameworks compared to Python or JavaScript
  • Community still smaller than mainstream languages, reducing available third-party resources

Pricing, plan by plan

Earthly

Free

No published plan breakdown. See the Earthly review.

Rust

Free

No published plan breakdown. See the Rust review.

Which should you pick?

Choose Earthly if

  • You need policy as code.
  • You want to start without paying.
  • You work on Web, CLI.
  • You also want multi-stage enforcement.
Earthly review

Choose Rust if

  • You need memory safety.
  • You want to start without paying.
  • You work on Windows, Linux, macOS.
  • You also want zero-cost abstractions.
Rust review

Questions people ask

Is Earthly or Rust better?
Neither clearly leads. Earthly starts at Free and Rust at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Earthly or Rust?
Earthly starts at Free and Rust at Free.
Does Earthly or Rust run on more platforms?
Earthly runs on Web, CLI. Rust runs on Windows, Linux, macOS.
Can I use Earthly for free?
Both have a free tier, so you can try either at no cost before committing.
What is Earthly best used for?
Earthly is most often used for enforcing engineering standards across ai and human developers, automating incident response procedures across all repositories, embedding compliance requirements into development workflows, standardizing build processes with earthfiles. Of those, enforcing engineering standards across ai and human developers and automating incident response procedures across all repositories are not what Rust is typically brought in for.
What can Earthly do that Rust cannot?
Earthly covers Policy as code, Multi-stage enforcement, AI agent governance, Repository-wide policies. Rust covers Memory safety, Zero-cost abstractions, Ownership system, Pattern matching.

Answered from the vendors’ own pages

Earthly: What is the difference between Earthfiles and Earthly Lunar?

Earthfiles is an open-source build tool that reached 12,000 GitHub stars and is used by companies like NVIDIA, Intel, and Databricks. Earthly Lunar is a separate governance platform launched in 2025 for enforcing standards across development workflows.

Source
Rust: Is Rust free?

Yes, Rust is free and open-source. The Rust Foundation provides institutional support for this community-driven project, and there are no costs associated with using the programming language.

Source
Earthly: How does Earthly Lunar enforce standards?

Lunar converts engineering standards, compliance requirements, and processes documented in AGENTS.md files, wikis, and incident postmortems into enforceable guardrails that apply consistently across repositories and development stages.

Source
Rust: What license does Rust use?

Rust is open-source and operated under an open-source license. Full license details are available in the policies section of the Rust website.

Source
Earthly: What is the pricing for Earthly Lunar?

Pricing is not published on the website. Interested customers should contact Earthly's sales team for current pricing and feature tiers.

Source
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