JSONLint

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

JSONLint is ranked #7 of 29 in JSON tools on Inferse. It runs on Browser extension, macOS, Web.

Compared on JSON tools

Free plan: Yesjsonlint.com
Schema validation: Yesjsonlint.com
JSONPath querying: Yesjsonlint.com
JSON diff and compare: Yesjsonlint.com
Available platforms: web, macosjsonlint.com

Facts

Purpose: JSONLint is a validator and formatter for JSON that accepts pasted or typed code and URLs containing JSON.jsonlint.com · 2 Oct 2026
Error reporting: The site says its validator identifies errors and reports their line numbers.jsonlint.com · 2 Oct 2026
Web tools: JSONLint lists formatting, minifying, comparison, tree viewing, schema validation, and JSON Path tools.jsonlint.com · 2 Oct 2026
Conversions: The site lists converters between JSON and CSV, Excel, SQL, YAML, XML, Java, and Python.jsonlint.com · 2 Oct 2026
URL input: Users can supply a URL containing JSON for JSONLint to retrieve and parse.jsonlint.com · 2 Oct 2026
Privacy: The privacy policy says JSON validation happens in the browser and JSON content is not sent to JSONLint servers for processing.jsonlint.com · 2 Oct 2026
Analytics and cookies: The privacy policy says the site uses Google Analytics and cookies for preferences, analytics, and advertising.jsonlint.com · 2 Oct 2026
Chrome extension: The free Chrome extension offers a collapsible JSON tree, image previews, clickable URLs, timestamps, and export to jsonlint.com.jsonlint.com · 2 Oct 2026
Extension privacy: The extension page says it operates client-side and does not track or collect data.jsonlint.com · 2 Oct 2026
Mac app: JSONLint Pro offers real-time validation, repair of common JSON errors, formatting, conversions, tree view, and multi-document tabs.apps.apple.com · 2 Oct 2026
Mac app privacy: The Mac app listing says it works offline on the device and requires no account, analytics, tracking, or internet connection.apps.apple.com · 2 Oct 2026
Open source engine: The site says its validator uses @jsonlint/core, which is available to install with npm for use in other projects.jsonlint.com · 2 Oct 2026