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---
page_title: jsondecode - Functions - Configuration Language
description: |-
The jsondecode function decodes a JSON string into a representation of its
value.
---
# `jsondecode` Function
`jsondecode` interprets a given string as JSON, returning a representation
of the result of decoding that string.
The JSON encoding is defined in [RFC 7159](https://tools.ietf.org/html/rfc7159).
This function maps JSON values to
[Terraform language values](/terraform/language/expressions/types)
in the following way:
| JSON type | Terraform type |
| --------- | ------------------------------------------------------------ |
| String | `string` |
| Number | `number` |
| Boolean | `bool` |
| Object | `object(...)` with attribute types determined per this table |
| Array | `tuple(...)` with element types determined per this table |
| Null | The Terraform language `null` value |
The Terraform language automatic type conversion rules mean that you don't
usually need to worry about exactly what type is produced for a given value,
and can just use the result in an intuitive way.
## Examples
```
> jsondecode("{\"hello\": \"world\"}")
{
"hello" = "world"
}
> jsondecode("true")
true
```
## Related Functions
* [`jsonencode`](/terraform/language/functions/jsonencode) performs the opposite operation, _encoding_
a value as JSON.