> ## Documentation Index
> Fetch the complete documentation index at: https://docs.revoengine.com/llms.txt
> Use this file to discover all available pages before exploring further.

# util.isBase64()

> Public low-code contract, signatures and examples for util.isBase64.

## `util.isBase64()`

Checks whether a value is base64.

### Signature

```ts theme={null}
static isBase64(input: any): boolean;
```

### Example

```ts theme={null}
const ok = util.isBase64(value);
```

See [all util methods](https://docs.revoengine.com/low-code/reference/util.md) or [runtime basics](https://docs.revoengine.com/low-code/overview.md).


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