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Developer Tools · head to head

Earthly vs esbuild

Earthly logo

Earthly

Developer Tools

Engineering guardrails for the AI era

From
Free
Free plan
Yes
Full reviewWebsite
esbuild logo

esbuild

Web Development

Extremely fast JavaScript bundler written in Go

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Earthly pricing model not published; requires sales contact; esbuild deliberately does not type-check TypeScript, only strips types, so tsc still runs separately
  • They diverge on capability: Earthly covers Policy as code, esbuild covers Very fast builds.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Earthly and esbuild actually diverge.

Attributes where Earthly and esbuild differ
AttributeEarthlyesbuild
Pricing modelNo pricing published on websiteOpen source, no licence fee
PlatformsWeb, CLILinux, macOS, Windows
CategoryDeveloper ToolsWeb Development
Founded2020Unknown

Identical on both: starting price (Free), 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 Earthly

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

Only in esbuild

  • Very fast builds
  • TypeScript support
  • Tree shaking and minification
  • Simple API

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 esbuild
  • Automating incident response procedures across all repositoriesnot esbuild
  • Embedding compliance requirements into development workflowsnot esbuild
  • Standardizing build processes with Earthfilesnot esbuild

esbuild

  • Build pipelines where bundle time is the bottlenecknot Earthly
  • Libraries and tools needing a fast, embeddable bundlernot Earthly
  • Replacing slower bundlers where the plugin ecosystem is not needednot 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

esbuild

  • Deliberately does not type-check TypeScript, only strips types, so tsc still runs separately
  • Plugin API is far narrower than webpack or Rollup, and complex builds hit its limits
  • Code splitting support has historically lagged the more established bundlers
  • Frequently used indirectly through Vite, so direct use is a narrower need than the download numbers suggest

Pricing, plan by plan

Earthly

Free

No published plan breakdown. See the Earthly review.

esbuild

Free
  • esbuildFree
    • Full functionality
    • Commercial use permitted
    • Community support

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 esbuild if

  • You need very fast builds.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want typescript support.
esbuild review

Questions people ask

Is Earthly or esbuild better?
Neither clearly leads. Earthly starts at Free and esbuild at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Earthly or esbuild?
Earthly starts at Free and esbuild at Free.
Does Earthly or esbuild run on more platforms?
Earthly runs on Web, CLI. esbuild runs on Linux, macOS, Windows.
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 esbuild is typically brought in for.
What can Earthly do that esbuild cannot?
Earthly covers Policy as code, Multi-stage enforcement, AI agent governance, Repository-wide policies. esbuild covers Very fast builds, TypeScript support, Tree shaking and minification, Simple API.

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
esbuild: Is esbuild free?

Yes, open source under the MIT licence.

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
esbuild: Does esbuild type-check TypeScript?

No. It strips types for speed and does not check them. Run tsc separately if you need type checking.

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
esbuild: Do I need esbuild if I use Vite?

You already have it. Vite uses esbuild internally for dependency pre-bundling and transforms.

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