> JSON is basically perfect if it allowed trailing commas and comments.

I agree, especially in regards to the comments, because sometimes the data itself isn't enough and additional human-readable context can be really useful!

In that regard, JSON5 is a wonderful idea, even if sadly it isn't widespread: https://json5.org/

It also supports the trailing commas and overall just feels like what JSON should be, to make it better without overcomplicating it.

I like the idea of JSON5, but it allows a bit too much in my opinion. For example, why add the single quote? Why hexadecimal identifiers?

https://nigeltao.github.io/blog/2021/json-with-commas-commen... https://github.com/tailscale/hujson