Developer Tools · head to head
Prettier vs Yoti
Yoti
Cybersecurity
Reusable digital identity, facial age estimation and identity verification
- From
- On request
- Free plan
- No
The short version
- Only Prettier has a free tier, so it costs nothing to try first.
- Each has a real cost: Prettier inflexible style rules that cannot be customized significantly, forcing teams to accept opinionated defaults; Yoti age estimation returns a probabilistic range rather than a verified date of birth, so it only works with a safety buffer above the legal threshold and cannot prove an exact age.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Prettier and Yoti actually diverge.
Identical on both: 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 Prettier
Nothing recorded that Yoti does not also cover.
Only in Yoti
- Facial age estimation
- Reusable digital ID
- Identity verification
- UK right to work and rent
- Digital ID for retail
- Selective disclosure
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 Yoti
- Enforcing consistent HTML indentation across component filesnot Yoti
- Removing style-related comments from pull request reviewsnot Yoti
- Formatting GraphQL queries with consistent indentationnot Yoti
Yoti
- A social platform meeting UK Online Safety Act age assurance duties without collecting identity documents from teenagersnot Prettier
- A supermarket removing staff interventions at self-checkout for age-restricted purchasesnot Prettier
- A UK employer running digital right-to-work checks under the certified trust framework rather than inspecting passportsnot Prettier
- A gambling operator needing an age gate with high completion rates before the account funding stepnot 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
Yoti
- Age estimation returns a probabilistic range rather than a verified date of birth, so it only works with a safety buffer above the legal threshold and cannot prove an exact age.
- Estimation accuracy varies by demographic and reported error margins widen at the age bands that matter most for eighteen-year thresholds, which pushes borderline users into a document fallback you still have to pay for.
- Pricing is not published, so buyers cannot compare the cost of an estimation check against a document check without going through sales.
- Regulatory acceptance of facial estimation differs by jurisdiction, so a method that satisfies Ofcom may not satisfy a regulator elsewhere and multi-market platforms need more than one approach.
- The reusable digital identity app depends on consumer adoption, which is meaningful in the UK and thin elsewhere, limiting the reusability benefit outside its home market.
Pricing, plan by plan
Prettier
FreeNo published plan breakdown. See the Prettier review.
Yoti
On request- Yoti Age and Identity Services$undefined/year
- Per-check pricing quoted by volume and method
- Age estimation, document verification and digital ID priced differently
- Right to work and right to rent checks quoted separately
Which should you pick?
Choose Prettier if
- You want to start without paying.
- You work on CLI, Editor Plugins, Build Tools.
Choose Yoti if
- You need facial age estimation.
- You work on Web, iOS, Android, API.
- You also want reusable digital id.
Questions people ask
- Is Prettier or Yoti better?
- Neither clearly leads. Prettier starts at Free and Yoti at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Prettier or Yoti?
- Prettier has a free tier; the other does not. Paid plans start at Free for Prettier and On request for Yoti.
- Does Prettier or Yoti run on more platforms?
- Prettier runs on CLI, Editor Plugins, Build Tools. Yoti runs on Web, iOS, Android, API.
- Can I use Prettier for free?
- Yes. Prettier has a free tier, so you can try it without paying. Yoti starts at On request.
- 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 Yoti is typically brought in for.
- What can Prettier do that Yoti cannot?
- Yoti covers Facial age estimation, Reusable digital ID, Identity verification, UK right to work and rent.
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.
SourceYoti: Does age estimation store my face?
The image is used to produce an estimate and then deleted rather than retained, which is the specific property that makes it usable for age assurance on minors.
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.
SourceYoti: Is it accepted for UK Online Safety Act compliance?
Facial age estimation is one of the methods regulators have accepted as highly effective age assurance. Confirm the current position with your own counsel for your content category.
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.
SourceYoti: Can it prove someone is exactly 21?
No. It gives a range. If you need a precise age you need a document or database check, which Yoti also sells.
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- Yoti vs VIVOTEK VAST Security Station
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- Yoti vs Avast One
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