JSONLint
JSONFormatter.org
FreeFormatter
Code Beautify JSON Validator
JSON Formatter & Validator
Site24x7 JSON Formatter and Validator
JSONCompare
ExtendsClass JSON Formatter is a tool that allows you to beautify, minify, validate, view, and escape JSON code.

JSONFormatter.org
Dev-Toolbox.io
DevsBox
DevCrate
JSONLint
TurantTools Dev
DevLab.tools
Free browser-based developer tools for JSON, JWT, Base64, UUID, hashing, timestamps, regex, XML, YAML and more. No signup required.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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ECJ
ExtendsClass JSON Formatter
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| Website | extendsclass.com | onlinedevelopertool.com |
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What each product offers, as listed by its team.

Possible disadvantages
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ExtendsClass JSON Formatter and OnlineDeveloperTool. For example, how are they different and which one is better?
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Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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30 free browser-based developer utilities: JSON formatter and diff, regex tester, JWT decoder, Base64, hashing, cron parser, YAML and CSV converters. No sign-up, and every tool runs entirely in your browser.
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Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.
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Developer tools: JSON/JWT/base64, hash, regex tester, UUID, cron, timestamp, color.
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Code Beauty’s JSON Validator or JSON Lint is easy to use tool to copy, paste and validate JSON data.
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