Validates whether a string matches the production for an XML name or qualified name

Email address and domain validation

Loosely validate an event.

User validations for npm

remark plugin to validate links to headings and files

Browser-safe model-selection contract and classifier.

Git branch name validator

Get accurate and well named css box model information about an Element 📦

Validates an IRI according to RFC 3987

Swagger 2.0 and OpenAPI 3.x parser and validator for Node and browsers

Javascript type validate

Validate literal value of an RDF term based on its datatype.

Javascript validator for UUID versions 1 through 5

Default model selection shared by Agent entry points

ember addon. It adds validation support to your Ember-Data models.

A simple and composable way to validate data in JavaScript (and TypeScript).

AWS CloudFormation Validate

Validate HTML colors by 'name', 'special name', 'hex', 'rgb', 'rgba', 'hsl', 'hsla', 'hwb', 'lab' or 'lch' values

Give me a string and I'll tell you if it's a valid npm package license string

AI SDK by Vercel - build apps like ChatGPT, Claude, Gemini, and more with a single interface for any model using the Vercel AI Gateway or go direct to OpenAI, Anthropic, Google, or any other model provider.