![json.png](https://steemitimages.com/DQmf5A1n77v9CdXMgK7aA4MQy1gLPLij6q2v95ruFwmrJVD/json.png)

A tool that has helped me tremendously recently in my Internet of Things and API development has been this online JSON viewer, [http://json.parser.online.fr/](http://json.parser.online.fr/).

### Untangling the rat's nest

When using REST an API, you often get back a whole mess of data back. While there are programmatic ways to walk that mess of data and put it into some readable format, this online tool does all that for you right in your web browser.

Not only does it format it nicely, it also allows you to fold and reveal subsections, extremely useful when dealing with multiple layers of nesting.


### Validation

As you can see in my above screenshot, it also does a certain amount of validation. If you are *providing* JSON then this is a must-have, unless you want to spend hours responding to Github complaints from people trying to consume your service!