[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Type](https://evolu.dev/docs/api-reference/common/Type) › Base64Url

```ts
type Base64Url = string & Brand<"Base64Url">;
```

Defined in: [packages/common/src/Type.ts:1569](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Type.ts#L1569)

Base64Url without padding.

Encode with [uint8ArrayToBase64Url](https://evolu.dev/docs/api-reference/common/Type/variables/uint8ArrayToBase64Url), decode with
[base64UrlToUint8Array](https://evolu.dev/docs/api-reference/common/Type/variables/base64UrlToUint8Array).