File system linter with a custom DSL for directory structure validation

Define shapes and types and use them for data/structure validation

Iris is a visualisation aid for protein structure validation

Model structure/validation for feathers.js

Primitive validator for JSON structure validation - parseability, encoding, schema hooks

A Node.js CLI tool for validating codebase folder and file structure using a clean declarative configuration. Part of the guardz ecosystem for comprehensive TypeScript development.

Markdown structure validation primitive - heading hierarchy, links, lists, code blocks

MongoDB ODM that combines MongoDB's flexibility with schema structure, validation, and custom methods. Complete TypeScript support with model-based architecture and event system.

Primitive validator for MIME type structure validation - MIME parts, content-type correctness

Standalone CLI and JavaScript API for project file/folder structure validation

A comprehensive content analysis library for SEO optimization, readability scoring, structure validation, and problematic pattern detection.

A public domain JSON Schema validator for JavaScript

Content quality validation - composite validator combining link integrity, image optimization, editorial style, and markdown structure validation

A lightning-fast, single-pass command line argument parser with structure validation

A library that brings structure, validation, and reliability to prompt engineering.

ESLint plugin for Frontend Project Structure validation

Validate your schema in the middle, because by the time you get to the end the food is all gone..

Public Key Infrastructure (PKI) is the basis of how identity and key management is performed on the web today. PKIjs is a pure JavaScript library implementing the formats that are used in PKI applications. It is built on WebCrypto and aspires to make it p

Recordari is a type and structure validation tool for configuration files

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