
JSONLint
JSONFormatter.org
CodeBeautify
Code Beautify JSON Validator
JSON Formatter & Validator
ExtendsClass JSON Formatter
10015.io
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.

Pivio.app
Sculptor
cmux
Fletch.sh
Omnara
Caudex
Native macOS app that wires coding-agent sessions (Claude Code, Codex CLI, Copilot CLI, OpenCode) into a graph of hand-offs, messages, and unattended loops.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | freeformatter.com | graphcode.app |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


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


Share your experience with using FreeFormatter and GraphCode.app. For example, how are they different and which one is better?
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The desktop control room for Claude Code, Codex, and OpenCode. Run agents in parallel with kanban, steer from your phone. Mac, Windows, Linux. Free right now.
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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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Run parallel Claudes safely in containers. Jump between their environments to instantly test changes. Get suggestions that catch critical issues as you go.
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Online Tools like Beautifiers, Editors, Viewers, Minifier, Validators, Converters for Developers: XML, JSON, CSS, JavaScript, Java, C#, MXML, SQL, CSV, Excel
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Native macOS terminal for AI coding agents. Works with Claude Code, Codex, OpenCode, Gemini CLI, Kiro, Aider, and any CLI tool.
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