diff --git a/src/util/urlToBase64.ts b/src/util/urlToBase64.ts
index dedfea44f..5ff07bf5c 100644
--- a/src/util/urlToBase64.ts
+++ b/src/util/urlToBase64.ts
@@ -1,5 +1,3 @@
-import { encode } from "https://deno.land/std@0.115.1/encoding/base64.ts";
-
 /** Converts a url to base 64. Useful for example, uploading/creating server emojis. */
 export async function urlToBase64(url: string) {
   const buffer = await fetch(url).then((res) => res.arrayBuffer());
@@ -7,3 +5,107 @@ export async function urlToBase64(url: string) {
   const type = url.substring(url.lastIndexOf(".") + 1);
   return `data:image/${type};base64,${imageStr}`;
 }
+
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+const base64abc = [
+  "A",
+  "B",
+  "C",
+  "D",
+  "E",
+  "F",
+  "G",
+  "H",
+  "I",
+  "J",
+  "K",
+  "L",
+  "M",
+  "N",
+  "O",
+  "P",
+  "Q",
+  "R",
+  "S",
+  "T",
+  "U",
+  "V",
+  "W",
+  "X",
+  "Y",
+  "Z",
+  "a",
+  "b",
+  "c",
+  "d",
+  "e",
+  "f",
+  "g",
+  "h",
+  "i",
+  "j",
+  "k",
+  "l",
+  "m",
+  "n",
+  "o",
+  "p",
+  "q",
+  "r",
+  "s",
+  "t",
+  "u",
+  "v",
+  "w",
+  "x",
+  "y",
+  "z",
+  "0",
+  "1",
+  "2",
+  "3",
+  "4",
+  "5",
+  "6",
+  "7",
+  "8",
+  "9",
+  "+",
+  "/",
+];
+
+/**
+ * CREDIT: https://gist.github.com/enepomnyaschih/72c423f727d395eeaa09697058238727
+ * Encodes a given Uint8Array, ArrayBuffer or string into RFC4648 base64 representation
+ * @param data
+ */
+export function encode(data: ArrayBuffer | string): string {
+  const uint8 = typeof data === "string"
+    ? new TextEncoder().encode(data)
+    : data instanceof Uint8Array
+    ? data
+    : new Uint8Array(data);
+  let result = "",
+    i;
+  const l = uint8.length;
+  for (i = 2; i < l; i += 3) {
+    result += base64abc[uint8[i - 2] >> 2];
+    result += base64abc[((uint8[i - 2] & 0x03) << 4) | (uint8[i - 1] >> 4)];
+    result += base64abc[((uint8[i - 1] & 0x0f) << 2) | (uint8[i] >> 6)];
+    result += base64abc[uint8[i] & 0x3f];
+  }
+  if (i === l + 1) {
+    // 1 octet yet to write
+    result += base64abc[uint8[i - 2] >> 2];
+    result += base64abc[(uint8[i - 2] & 0x03) << 4];
+    result += "==";
+  }
+  if (i === l) {
+    // 2 octets yet to write
+    result += base64abc[uint8[i - 2] >> 2];
+    result += base64abc[((uint8[i - 2] & 0x03) << 4) | (uint8[i - 1] >> 4)];
+    result += base64abc[(uint8[i - 1] & 0x0f) << 2];
+    result += "=";
+  }
+  return result;
+}