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---
title: Why not JSON5?
---
[JSON5](http://json5.org/) is also a proposed extension to JSON to make it more readable.
Its main criticism of YAML is::
There are other formats that are human-friendlier, like YAML, but changing from JSON to a completely different format is undesirable in many cases.
This is, I believe, mistaken. It is better if a language is not subtly different if you are going to use it as such. Subtle differences invite mistakes brought on by confusion.
JSON5 looks like a hybrid of YAML and JSON::
```json
{
foo: 'bar',
while: true,
}
```
It has weaknesses similar to TOML:
- The noisiness of the delimiters that supplant significant whitespace make it less readable and editable.
- The use of [syntax typing](../../why/syntax-typing-bad) is neither necessary, nor an aid to stricter typing if you have a schema.
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