Registry / testing / eslint-plugin-json-schema-validator

eslint-plugin-json-schema-validator

library6.2.0jsnpmunverified

ESLint plugin that validates JSON, JSONC, JSON5, YAML, TOML, JavaScript, and Vue custom blocks against JSON Schema. Current stable version is 6.2.0 (released 2025-06-10). Requires ESLint >=9.38.0 and Node.js >=20.19.0 (20.x), >=22.13.0 (22.x), or >=24. Actively maintained with monthly releases. Key differentiator: validates structured data formats using JSON Schema within ESLint flat config, supporting multiple data languages and schema from SchemaStore.

testing serialization

github ↗package ↗homepage ↗

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

ESM-only since v6.0.0 with Node >=20.19.0. Default import provides the plugin object with configs.

import eslintPluginJsonSchemaValidator from 'eslint-plugin-json-schema-validator'

Flat config only since v6.0.0. The flat/ prefix is deprecated but still works as alias.

export default [ ...eslintPluginJsonSchemaValidator.configs.recommended ]

Direct import of rules map for custom config is supported.

import { rules } from 'eslint-plugin-json-schema-validator'

ESLint flat config using recommended configuration; validates JSON, YAML, and TOML against JSON Schema.

// eslint.config.js import eslintPluginJsonSchemaValidator from 'eslint-plugin-json-schema-validator'; export default [ ...eslintPluginJsonSchemaValidator.configs.recommended, { rules: { 'json-schema-validator/no-invalid': 'warn' } } ]; // Run: npx eslint --ext .json,.yaml,.toml src/

Debug

Known footguns

breakingESLint plugin requires ESLint >=9.38.0 and Node.js >=20.19.0/22.13.0/>=24.0.0

breakingv6.0.0 dropped support for older ESLint versions; requires flat config only (eslint.config.js).

breakingv6.0.0 replaced require() with ESM imports; CommonJS require() will fail.

gotchaPlugin does not validate .js files by default; only JSON, YAML, TOML, and Vue SFC.

deprecatedThe flat/ prefix in configs (e.g., configs['flat/recommended']) is deprecated in v6.

gotchaSchemaStore URLs are normalized to www.schemastore.org; custom URLs may not be recognized.

Upgrade

Version history

Breaking-change detection hasn't run for this library yet.

Audit

Security & dependencies

CVE tracking and dependency tree are planned for a later release.

Agent activity

18 hits · last 30 days

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Resources

githubhttps://github.com/ota-meshi/eslint-plugin-json-schema-validator ↗

packagehttps://www.npmjs.com/package/eslint-plugin-json-schema-validator ↗

homepagehttps://ota-meshi.github.io/eslint-plugin-json-schema-validator/ ↗