JSONFormatter.org
JSONLint
JSON Formatter & Validator
CodeBeautify
JSON Crack
FreeFormatter
10015.io
View, edit and format JSON online

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?
Based on our record, JSON Editor Online seems to be more popular. It has been mentioned 23 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
JSO
JSON Editor Online
|
|
|
|---|---|---|
| Website | jsoneditoronline.org | 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 JSON Editor Online and GraphCode.app. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

I love json tools, I use several like https://jsoneditoronline.org/. - Source: Hacker News / about 2 years ago
This error is harmless. However, your configuration file is malformed. What u/mart1d4 said is right that the custom settings are for custom games mode (not hard). Start with the default config. You can use: https://jsoneditoronline.org/... Source: over 3 years ago
Download the text file with curves from this thread: https://www.avsforum.com/threads/announcing-ratbuddyssey-a-tool-for-tweaking-audyssey-multeq-app-files.3006886/post-62226147Save your .ady file and open it here:... Source: over 3 years ago
Tracking GraphCode.app since Sep 2026.
When comparing JSON Editor Online and GraphCode.app, you can also consider the following products.

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
Compare JSONFormatter.org to JSON Editor Online or GraphCode.app:

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.
Compare Pivio.app to JSON Editor Online or GraphCode.app:

JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
Compare JSONLint to JSON Editor Online or GraphCode.app:
Run parallel Claudes safely in containers. Jump between their environments to instantly test changes. Get suggestions that catch critical issues as you go.
Compare Sculptor to JSON Editor Online or GraphCode.app:

The JSON Formatter was created to help with debugging.
Compare JSON Formatter & Validator to JSON Editor Online or GraphCode.app:

Native macOS terminal for AI coding agents. Works with Claude Code, Codex, OpenCode, Gemini CLI, Kiro, Aider, and any CLI tool.
Compare cmux to JSON Editor Online or GraphCode.app: