express-validation is a middleware that validates a request and returns a response with errors; if any of the configured validation rules fail.

The renderer-neutral core of the reform framework — typed, headless state, events, reducers, derived values, async/remote data, and compositions built on Effect.

Detect Node.JS (as opposite to browser environment). ESM modification

Parses well-formed HTML (meaning all tags closed) into an AST and back. quickly.

File Type Validation Plugin for FilePond

Function argument validation for humans

TypeScript-first schema declaration and validation library with static type inference

No-dependencies, low-level, high-performance JIT code generation package for JavaScript

General purpose validation library for JavaScript

File Size Validation Plugin for FilePond

This package provides utilities for creating schema for different types, along with serialization information.

Partial Lenses Validation is a JavaScript library for validating and transforming data

Fork of the class-validator package. Decorator-based property validation for classes.

Core libraries to interact with SFDX projects, orgs, and APIs.

MJML: the only framework that makes responsive-email easy

Sanity template validator for remote templates

GraphQL Code Generator plugin to generate form validation schema from your GraphQL schema

Colors for data scientists. Generate and refine palettes of optimally distinct colors.

Extended validation plugin adds support for writing GraphQL validation rules, that has access to all `execute` parameters, including variables.

Add-on to jQuery Validation to enable unobtrusive validation options in data-* attributes.