# To base64
## Description
This operation is used to encode data into a Base64 string. Base64 is a binary-to-text encoding method commonly used to encode binary data (like images or files) into text that can be easily transmitted over text-based protocols such as email, JSON, or XML. It’s also used for data storage, ensuring the data remains ASCII-safe.
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## Data types
These are the input/output expected data types for this operation:
### Input data
 - The string you want to encode.
### Output data
 - Resulting Base64 string.
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## Example
Suppose you want to **encode** a series of events into **Base64**:
1. In your Pipeline, open the required [Action](https://onum.gitbook.io/onum-docs/the-workspace/pipelines/actions) configuration and select the input **Field**.
2. In the **Operation** field, choose **To Base64**.
3. Give your **Output field** a name and click **Save**. The values in your input field will be encoded. For example:
Hello, Onum! -> IEhlbGxvLCBPbnVtIQ==
{% hint style="info" %}
You can try out operations with specific values using the **Input** field above the operation. You can enter the value in the example above and check the result in the **Output** field.
{% endhint %}
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