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diff --git a/vanilla/node_modules/@exodus/bytes/base64.d.ts b/vanilla/node_modules/@exodus/bytes/base64.d.ts
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+/**
+ * Implements base64 and base64url from [RFC4648](https://datatracker.ietf.org/doc/html/rfc4648)
+ * (no differences from [RFC3548](https://datatracker.ietf.org/doc/html/rfc4648)).
+ *
+ * ```js
+ * import { fromBase64, toBase64 } from '@exodus/bytes/base64.js'
+ * import { fromBase64url, toBase64url } from '@exodus/bytes/base64.js'
+ * import { fromBase64any } from '@exodus/bytes/base64.js'
+ * ```
+ *
+ * @module @exodus/bytes/base64.js
+ */
+
+/// <reference types="node" />
+
+import type { OutputFormat, Uint8ArrayBuffer } from './array.js';
+
+/**
+ * Options for base64 encoding
+ */
+export interface ToBase64Options {
+  /** Whether to include padding characters (default: true for base64, false for base64url) */
+  padding?: boolean;
+}
+
+/**
+ * Padding mode for base64 decoding
+ * - `true`: padding is required
+ * - `false`: padding is not allowed (default for base64url)
+ * - `'both'`: padding is optional (default for base64)
+ */
+export type PaddingMode = boolean | 'both';
+
+/**
+ * Options for base64 decoding
+ */
+export interface FromBase64Options {
+  /** Output format (default: 'uint8') */
+  format?: OutputFormat;
+  /** Padding mode */
+  padding?: PaddingMode;
+}
+
+/**
+ * Encode a `Uint8Array` to a base64 string (RFC 4648)
+ *
+ * @param arr - The input bytes
+ * @param options - Encoding options
+ * @returns The base64 encoded string
+ */
+export function toBase64(arr: Uint8Array, options?: ToBase64Options): string;
+
+/**
+ * Encode a `Uint8Array` to a base64url string (RFC 4648)
+ *
+ * @param arr - The input bytes
+ * @param options - Encoding options (padding defaults to false)
+ * @returns The base64url encoded string
+ */
+export function toBase64url(arr: Uint8Array, options?: ToBase64Options): string;
+
+/**
+ * Decode a base64 string to bytes
+ *
+ * Operates in strict mode for last chunk, does not allow whitespace
+ *
+ * @param string - The base64 encoded string
+ * @param options - Decoding options
+ * @returns The decoded bytes
+ */
+export function fromBase64(string: string, options?: FromBase64Options): Uint8ArrayBuffer;
+export function fromBase64(string: string, options: FromBase64Options & { format: 'buffer' }): Buffer;
+
+/**
+ * Decode a base64url string to bytes
+ *
+ * Operates in strict mode for last chunk, does not allow whitespace
+ *
+ * @param string - The base64url encoded string
+ * @param options - Decoding options (padding defaults to false)
+ * @returns The decoded bytes
+ */
+export function fromBase64url(string: string, options?: FromBase64Options): Uint8ArrayBuffer;
+export function fromBase64url(string: string, options: FromBase64Options & { format: 'buffer' }): Buffer;
+
+/**
+ * Decode either base64 or base64url string to bytes
+ *
+ * Automatically detects the variant based on characters present
+ *
+ * @param string - The base64 or base64url encoded string
+ * @param options - Decoding options
+ * @returns The decoded bytes
+ */
+export function fromBase64any(string: string, options?: FromBase64Options): Uint8ArrayBuffer;
+export function fromBase64any(string: string, options: FromBase64Options & { format: 'buffer' }): Buffer;