jsonlint ☆

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Description:
JSON parser and validator with a CLI

Type: Formula | Latest Version: 1.6.0@0 | Tracked Since: Dec 24, 2025

Links: Homepage | GitHub | Docs | formulae.brew.sh

Stars: 1,980 | Forks: 418 | Language: JavaScript | Category: Developer tools

Tags: json validation cli developer-tools parser

Install: brew install jsonlint

About:
jsonlint is a command-line tool and Node.js library for validating and parsing JSON data. It ensures JSON files are syntactically correct according to the RFC 4627 specification, providing clear error messages for debugging. Its primary value is in automating JSON validation within development, CI/CD pipelines, and data processing workflows.

Key Features:

Validates JSON syntax against RFC standards
Provides a CLI for easy integration into scripts and automation
Offers clear, human-readable error reporting with line numbers
Can be used as a Node.js library for programmatic validation
Supports compact output or pretty-printing of JSON

Use Cases:

Validating JSON configuration files (e.g., .json configs, package.json) before deployment
Integrating JSON validation into CI/CD pipelines to catch errors early
Debugging and formatting JSON output from APIs or other data sources

Alternatives:

jq – A more powerful JSON processor that can also validate; jq is for filtering and transforming, while jsonlint is focused purely on validation.
python -m json.tool – Python's built-in JSON tool validates and prettifies but is part of the Python ecosystem, whereas jsonlint is Node.js/JS native.

Version History

Detected	Version	Rev	Change	Commit
Dec 24, 2025 9:55pm	1.6.0	0	VERSION_BUMP	08c9a030