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

Beyond Compare
Meld
WinMerge
Araxis Merge
Devart Code Compare
Diff Checker
Diff Doc
A fast, precise desktop diff and merge tool for Windows, macOS, and Linux. Syntax-aware diffs, directory comparison, three-way merge, PDF comparison. Free tier available.
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.
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JSO
JSON Editor Online
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| Website | jsoneditoronline.org | getdiffract.com |
| Pricing | ||
| Platforms | — | |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.

No analysis of JSON Editor Online yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing JSON Editor Online and Diffract.
Diffract's answer:
Diffract is a purpose-built desktop diff tool that handles far more than plain text. A single app compares text, binary (hex view), images, PDFs, Word documents, Excel spreadsheets, ZIP/tar archives, and Git commits - all in a multi-tab interface. On top of the standard Myers diff, it offers Patience and Histogram algorithms per comparison, AST-based semantic diff that understands code structure (not just line changes), and automatic moved-block detection. It also runs fully headless as a CLI tool for use in CI pipelines.
Diffract's answer:
Diffract is purpose-built, so it supports file types (PDF, Word, Excel, archives), workflows (three-way merge, Git browsing, semantic diff), and UX features (drag-and-drop, OS context menus, in-panel editing with undo/redo, minimap, search) that e.g. an IDE's diff panel simply doesn't cover.
Diffract's answer:
Software developers and DevOps/SRE engineers who compare code, config files, and build artifacts daily. A secondary audience includes QA and release engineers who need to diff generated outputs and directory trees, and technical writers or analysts who compare Word documents, PDFs, or Excel exports without wanting a cloud-based or subscription tool.
Diffract's answer:
Flutter and Dart (cross-platform desktop UI, targeting Windows, macOS, and Linux).
Share your experience with using JSON Editor Online and Diffract. 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 Diffract since May 2026.
When comparing JSON Editor Online and Diffract, 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
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Beyond Compare allows you to compare files and folders.
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JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
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What is Meld? Meld is a visual diff and merge tool targeted at developers.
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The JSON Formatter was created to help with debugging.
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WinMerge is an open source differencing and merging tool for Windows.
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