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Developer Tools · head to head

Prettier vs Spline

Prettier logo

Prettier

Developer Tools

Opinionated code formatter

From
Free
Free plan
Yes
Visit PrettierFull review
Spline logo

Spline

Design

3D design tool for the web

From
Free
Free plan
Yes
Visit SplineFull review

The short version

  • Prettier is an opinionated code formatter; Spline is a free 3D design software.
  • Prettier is free; Spline starts at $9/mo.
  • Where Prettier falls short: inflexible style rules that cannot be customized significantly, forcing teams to accept opinionated defaults.
  • Where Spline falls short: AI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks.
  • Prices and features on this page were last checked on 30 August 2026.

Where they differ

Only the attributes on which Prettier and Spline actually diverge.

Attributes where Prettier and Spline differ
AttributePrettierSpline
Pricing modelFreeFreemium
PlatformsAPI, Editor Plugins, Build ToolsWeb, iOS, Android, VR and AR
CategoryDeveloper ToolsDesign
Founded20162020

Identical on both: starting price (Free), free tier (Yes).

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 Prettier

Nothing recorded that Spline does not also cover.

Only in Spline

  • 3D modeling
  • Real-time collaboration
  • Animations
  • Interactions
  • Code export
  • React
  • Next.js
  • Webflow

What people use each for

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

Prettier

  • Automatically formatting TypeScript files to project style standardsnot Spline
  • Enforcing consistent HTML indentation across component filesnot Spline
  • Removing style-related comments from pull request reviewsnot Spline
  • Formatting GraphQL queries with consistent indentationnot Spline

Spline

  • Web 3D experiencesnot Prettier
  • Interactive prototypesnot Prettier
  • Product visualizationnot Prettier

Where each one falls short

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

Prettier

  • Inflexible style rules that cannot be customized significantly, forcing teams to accept opinionated defaults
  • Developers must format entire files rather than selective line ranges in some contexts
  • Limited language support compared to some alternatives, though it covers major languages

Spline

  • AI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks
  • Limited to simpler designs - not suitable for high-poly, detailed production models
  • Performance degrades with complex scenes containing many objects and materials
  • Limited non-Apple platform coverage compared to cross-platform design tools
  • Tutorials are either too fast for beginners or too basic for advanced users

Pricing, plan by plan

Prettier

Free

No published plan breakdown. See the Prettier review.

Spline

Free
  • FreeFree
    • Unlimited projects
    • Basic exports
    • Community support
  • Pro$9/mo
    • Advanced exports
    • Custom domains
    • Password protection
  • Team$19/mo
    • Team collaboration
    • Version control
    • Admin controls

Which should you pick?

Choose Prettier if

  • You want to start without paying.
  • You work on API, Editor Plugins, Build Tools.
Prettier review

Choose Spline if

  • You need 3d modeling.
  • You want to start without paying.
  • You work on Web, iOS, Android, VR and AR.
  • You also want real-time collaboration.
Spline review

Questions people ask

Is Prettier or Spline better?
Neither clearly leads. Prettier starts at Free and Spline at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Prettier or Spline?
Prettier starts at Free and Spline at Free.
Does Prettier or Spline run on more platforms?
Prettier runs on API, Editor Plugins, Build Tools. Spline runs on Web, iOS, Android, VR and AR.
Can I use Prettier for free?
Both have a free tier, so you can try either at no cost before committing.
What is Prettier best used for?
Prettier is most often used for automatically formatting typescript files to project style standards, enforcing consistent html indentation across component files, removing style-related comments from pull request reviews, formatting graphql queries with consistent indentation. Of those, automatically formatting typescript files to project style standards and enforcing consistent html indentation across component files are not what Spline is typically brought in for.
What can Prettier do that Spline cannot?
Spline covers 3D modeling, Real-time collaboration, Animations, Interactions.

Answered from the vendors’ own pages

Prettier: Is Prettier free and open source?

Yes, Prettier is completely free and open source, available as an npm package with no licensing costs or subscriptions.

Source
Spline: What is Spline's pricing?

Spline offers a Free plan with watermarked web exports, Starter at $12/month (billed annually) removing watermarks, Professional at $20/month with unlimited projects, and Enterprise with custom pricing. Viewers are unlimited on all plans.

Source
Prettier: Can Prettier be integrated with ESLint?

Yes, Prettier integrates with ESLint by disabling ESLint formatting rules via eslint-config-prettier, allowing both tools to work together with Prettier handling formatting and ESLint handling code quality.

Source
Spline: Can Spline export 3D models to other tools?

Spline's export/import format support is more limited compared to traditional 3D tools like Blender. It focuses on web-first exports and native app code generation.

Source
Prettier: Does Prettier support configuration customization?

Prettier is intentionally opinionated with limited configuration options to enforce consistency. You can create a .prettierrc file for basic customization, but Prettier does not support extensive rule customization like ESLint.

Source
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