Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

JSONLint review

Freemium#5 of 29 in JSON Tools

A broad JSON toolkit with free browser tools and an affordable macOS editor.

8.7/10Editor score
Visit JSONLint
JSONLint8.7 Visit JSONLint

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

JSONLint is a browser-based toolkit for developers who work with JSON across validation, transformation and code-generation tasks. The free Web Tools plan brings more than 40 tools for JSON validation, formatting, beautification, minification, JSON Schema validation and generation, JSONPath querying, document comparison, format conversion and code generation. It supports conversions between JSON and CSV, XML, YAML, Excel and SQL, and can generate code for languages including TypeScript, Python, Java and Go. The web tools run in the browser, while JSONLint Pro is a separate native macOS editor.

Pricing is straightforward. Web Tools are free and cover the browser-based toolkit. JSONLint Pro costs $6.99 as a one-time purchase and adds a native macOS editing environment with offline support, real-time validation, smart repair and format conversions. The paid tier is therefore aimed at developers who want a local editor rather than only browser utilities. Buyers who need browser access across their workflow can start with the free plan, while macOS users working with local files may find the one-time Pro purchase more relevant.

The main strength is breadth: JSONLint combines syntax error reporting, schema work, JSONPath filtering, diffing, conversion and programming-language code generation in one product. That makes it a practical fit for varied development workflows instead of a tool limited to formatting or validation. The trade-off is platform separation. The browser tools and the native editor are distinct offerings, and the native experience is tied to macOS. Choose JSONLint for broad JSON conversion and code-generation work, especially if free browser tools meet your needs or you want a low-cost macOS editor. Choose another option if you require a native editor outside macOS or only need a narrowly focused JSON utility.

JSONLint pros and cons

  • Where it wins
    • 40+ browser-based validation, formatting and conversion tools
    • JSONPath, Schema, diffing and multi-format conversion in one toolkit
    • $6.99 one-time Pro app adds offline macOS editing and smart repair
  • Where it doesn't
    • The native editor is available on macOS rather than across platforms
    • Offline support and smart repair are part of the paid Pro app
    • Its broad feature set may exceed the needs of simple validation tasks

JSONLint fact sheet, pricing and score →

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated · How we research and update