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Developer Tools · head to head

Earthly vs MUI

Earthly logo

Earthly

Developer Tools

Engineering guardrails for the AI era

From
Free
Free plan
Yes
Full reviewWebsite
MUI logo

MUI

Web Development

React component library implementing Material Design

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Earthly pricing model not published; requires sales contact; MUI escaping the Material Design look takes more theming effort than teams expect
  • They diverge on capability: Earthly covers Policy as code, MUI covers Large component set.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Earthly and MUI actually diverge.

Attributes where Earthly and MUI differ
AttributeEarthlyMUI
Pricing modelNo pricing published on websiteOpen-source core with paid tiers for advanced components
PlatformsWeb, CLIWeb
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 MUI

  • Large component set
  • Theming system
  • Accessibility
  • TypeScript support

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

MUI

  • Building an admin or internal application quickly with components that already worknot Earthly
  • Teams needing accessible complex widgets without building themnot Earthly
  • Products where Material Design is an acceptable or desired starting pointnot 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

MUI

  • Escaping the Material Design look takes more theming effort than teams expect
  • Bundle size is significant, and careless imports pull in far more than needed
  • Advanced components such as the full data grid require a paid licence
  • Major version upgrades have historically required real migration work

Pricing, plan by plan

Earthly

Free

No published plan breakdown. See the Earthly review.

MUI

Free
  • CommunityFree
    • Core component library
    • Theming
    • 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 MUI if

  • You need large component set.
  • You want to start without paying.
  • You also want theming system.
MUI review

Questions people ask

Is Earthly or MUI better?
Neither clearly leads. Earthly starts at Free and MUI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Earthly or MUI?
Earthly starts at Free and MUI at Free.
Does Earthly or MUI run on more platforms?
Earthly runs on Web, CLI. MUI runs on Web.
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 MUI is typically brought in for.
What can Earthly do that MUI cannot?
Earthly covers Policy as code, Multi-stage enforcement, AI agent governance, Repository-wide policies. MUI covers Large component set, Theming system, Accessibility, TypeScript support.

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
MUI: Is MUI free?

The core library is open source and free. Advanced components, including the full-featured data grid, require a paid 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
MUI: Can MUI look non-Material?

Yes, through the theming system, but a substantial departure takes real work. Teams wanting full design control often prefer unstyled primitives instead.

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
MUI: Does MUI handle accessibility?

Components follow WAI-ARIA patterns by default, which is a large part of why teams adopt it.

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