#validator

Data and BIC Validator for German Banks

Sanitize untrusted HTML (to prevent XSS) with a configuration specified by a Whitelist

Simple validator for STAC Items, Catalogs, and Collections. STAC 1.0.0 compliant!

Declarative JSON validation and transformation for Go. Flatten any document into dotted keys, target them with wildcards or regex, and run each value through a pipeline of validators and operators. Typed errors, no panics, zero dependencies.

Extension methods that make it easier to wire up validation for the .NET Core options pattern.

Disposable email address validator for Laravel

Constraint Class for international Zipcode Validation

🚦 Test HTML files or URLs against the W3C validator (CLI for package.json scripts)

Phone number validation for Ruby

Raw data mapping to validated objects

A Python library for variable type checker/validator/converter at a run time.

The EmailAddress Gem to work with and validate email addresses.

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Port av NoCommons-biblioteket for .NET

JSON Schema validator for PHP

Adds support for Symfony Validator in GraphQLite

Core library

Fast, zero-dependency OOXML validator for Node.js (.docx/.pptx/.xlsx etc.).

The Metabase Representation Format: a human-readable, version-controllable YAML tree for Metabase user content. Spec, JSON Schemas, and examples.

Modern, type-safe OpenAPI schemas in Python using Pydantic 1.8+ and 2.x

🌐 An immutable IP address (IPv4, IPv6, CIDR) utility for JavaScript & TypeScript.

Zero-dependency, DOM-free, pure predicate for detecting unsafe strings across HTML, XML, SVG, SQL, SHELL, NOSQL, and REGEX contexts

The regular expression parser for ECMAScript.

Валидатор sql для trino

A library for validating and modeling user input.

Interfaces with Annotations

Parse, validate, and snapshot MCP servers. The swagger-parser for MCP.

🧰 Handy PHP functions

Javascript validation library, batteries included

Flexible JSON decoding for Go — gracefully handling schema variations and forgiving mistakes.