# Base64ToText

{% hint style="info" %}
The **`Base64ToText()`** function decodes a [base64](https://en.wikipedia.org/wiki/Base64) encoded string to a text value. Decoding is carried out using the UTF8 charset.

This function is NOT SQL compatible. For more information about SQL compatibility, see our [documentation](https://docs.wem.io/platform/~/changes/y5gAfiyi2fILzrLzUUHj/wemreference/sql-compatibility).
{% endhint %}

{% hint style="success" %}
Returns a base64 decoded text\
Returns <mark style="color:red;">**`Invalid expression`**</mark>if one of the parameter values is unknown.
{% endhint %}

### Syntax

<details>

<summary><code>Base64ToText(</code><mark style="color:blue;"><code>text</code></mark><code>)</code></summary>

`Base64ToText("SGVsbG8gd29ybGQ=")`\
\=> *"Hello world"*

`Base64ToText([simple tekst not base64])`\
\=> *Invalid expression*

</details>

### Parameters

<table><thead><tr><th width="150">Name</th><th width="150">Type</th><th width="150" align="center">Required</th><th width="248.15953250810662">Description</th><th data-hidden>Required?</th></tr></thead><tbody><tr><td><mark style="color:blue;"><code>text</code></mark></td><td>text</td><td align="center"><span data-gb-custom-inline data-tag="emoji" data-code="2611">☑️</span></td><td>a base64 encoded text</td><td>yes</td></tr></tbody></table>