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

Redis
4D
MongoDB
CouchBase
Azure Cosmos DB
ESM Tools
OrientDB
It is Both Under the GPL and it is also Proprietary if using the GPL version the software you make...

Which is more popular?
LiveCode Platform might be a bit more popular than JSON Editor Online. We know about 25 links to it since March 2021 and only 23 links to JSON Editor Online.
Website, pricing, platforms and company facts side by side.
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JSO
JSON Editor Online
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| Website | jsoneditoronline.org | livecode.com |
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What each product offers, as listed by its team.

Possible disadvantages
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 LiveCode Platform. 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
Looks like a less feature-full version of livecode [0], which I'd argue is more of a HyperCard successor", since they were formerly revolution & MetaCard, and can import HyperCard stacks. [0] https://livecode.com/. - Source: Hacker News / 9 months ago
Funny how this has co-opted the Runtime Revolution folks re-naming their Hypercard clone as: https://livecode.com/. - Source: Hacker News / 10 months ago
His legacy still exists and continues today. Even updated to modern sensibilities, as well as cross-platform, and compatible with all your legacy Hypercard stacks! As far as I remember, progression was Hypercard -> Metacard -> Runtime... - Source: Hacker News / over 1 year ago
When comparing JSON Editor Online and LiveCode Platform, 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 LiveCode Platform:

Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Compare Redis to JSON Editor Online or LiveCode Platform:

JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
Compare JSONLint to JSON Editor Online or LiveCode Platform:

4D is a relational database management system and IDE.
Compare 4D to JSON Editor Online or LiveCode Platform:

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

MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Compare MongoDB to JSON Editor Online or LiveCode Platform: