diff --git a/package.json b/package.json
index 3e82c94..f7ee5e3 100644
--- a/package.json
+++ b/package.json
@@ -18,10 +18,7 @@
     "type": "git",
     "url": "git+https://github.com/LemmyNet/lemmy-js-client.git"
   },
-  "dependencies": {
-    "cross-fetch": "^4.0.0",
-    "form-data": "^4.0.0"
-  },
+  "dependencies": {},
   "devDependencies": {
     "@types/node": "^20.11.19",
     "@typescript-eslint/eslint-plugin": "^7.0.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index da98648..23d716c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -4,14 +4,6 @@ settings:
   autoInstallPeers: true
   excludeLinksFromLockfile: false
 
-dependencies:
-  cross-fetch:
-    specifier: ^4.0.0
-    version: 4.0.0
-  form-data:
-    specifier: ^4.0.0
-    version: 4.0.0
-
 devDependencies:
   '@types/node':
     specifier: ^20.11.19
@@ -603,10 +595,6 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
-  /asynckit@0.4.0:
-    resolution: {integrity: sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==}
-    dev: false
-
   /balanced-match@1.0.2:
     resolution: {integrity: sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==}
     dev: true
@@ -737,13 +725,6 @@ packages:
     resolution: {integrity: sha512-IfEDxwoWIjkeXL1eXcDiow4UbKjhLdq6/EuSVR9GMN7KVH3r9gQ83e73hsz1Nd1T3ijd5xv1wcWRYO+D6kCI2w==}
     dev: true
 
-  /combined-stream@1.0.8:
-    resolution: {integrity: sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==}
-    engines: {node: '>= 0.8'}
-    dependencies:
-      delayed-stream: 1.0.0
-    dev: false
-
   /commander@11.1.0:
     resolution: {integrity: sha512-yPVavfyCcRhmorC7rWlkHn15b4wDVgVmBA7kV4QVBsF7kv/9TKJAbAXVTxvTnwP8HHKjRCJDClKbciiYS7p0DQ==}
     engines: {node: '>=16'}
@@ -767,14 +748,6 @@ packages:
       parse-json: 4.0.0
     dev: true
 
-  /cross-fetch@4.0.0:
-    resolution: {integrity: sha512-e4a5N8lVvuLgAWgnCrLr2PP0YyDOTHa9H/Rj54dirp61qXnNq46m82bRhNqIA5VccJtWBvPTFRV3TtvHUKPB1g==}
-    dependencies:
-      node-fetch: 2.7.0
-    transitivePeerDependencies:
-      - encoding
-    dev: false
-
   /cross-spawn@7.0.3:
     resolution: {integrity: sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==}
     engines: {node: '>= 8'}
@@ -800,11 +773,6 @@ packages:
     resolution: {integrity: sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ==}
     dev: true
 
-  /delayed-stream@1.0.0:
-    resolution: {integrity: sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==}
-    engines: {node: '>=0.4.0'}
-    dev: false
-
   /detect-indent@7.0.1:
     resolution: {integrity: sha512-Mc7QhQ8s+cLrnUfU/Ji94vG/r8M26m8f++vyres4ZoojaRDpZ1eSIh/EpzLNwlWuvzSZ3UbDFspjFvTDXe6e/g==}
     engines: {node: '>=12.20'}
@@ -1077,15 +1045,6 @@ packages:
     resolution: {integrity: sha512-36yxDn5H7OFZQla0/jFJmbIKTdZAQHngCedGxiMmpNfEZM0sdEeT+WczLQrjK6D7o2aiyLYDnkw0R3JK0Qv1RQ==}
     dev: true
 
-  /form-data@4.0.0:
-    resolution: {integrity: sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==}
-    engines: {node: '>= 6'}
-    dependencies:
-      asynckit: 0.4.0
-      combined-stream: 1.0.8
-      mime-types: 2.1.35
-    dev: false
-
   /fs.realpath@1.0.0:
     resolution: {integrity: sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==}
     dev: true
@@ -1525,18 +1484,6 @@ packages:
       picomatch: 2.3.1
     dev: true
 
-  /mime-db@1.52.0:
-    resolution: {integrity: sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /mime-types@2.1.35:
-    resolution: {integrity: sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      mime-db: 1.52.0
-    dev: false
-
   /mimic-fn@2.1.0:
     resolution: {integrity: sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==}
     engines: {node: '>=6'}
@@ -1568,18 +1515,6 @@ packages:
     resolution: {integrity: sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==}
     dev: true
 
-  /node-fetch@2.7.0:
-    resolution: {integrity: sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==}
-    engines: {node: 4.x || >=6.0.0}
-    peerDependencies:
-      encoding: ^0.1.0
-    peerDependenciesMeta:
-      encoding:
-        optional: true
-    dependencies:
-      whatwg-url: 5.0.0
-    dev: false
-
   /node-releases@2.0.14:
     resolution: {integrity: sha512-y10wOWt8yZpqXmOgRo77WaHEmhYQYGNA6y421PKsKYWEK8aW+cqAphborZDhqfyKrbZEN92CN1X2KbafY2s7Yw==}
     dev: true
@@ -2001,10 +1936,6 @@ packages:
       is-number: 7.0.0
     dev: true
 
-  /tr46@0.0.3:
-    resolution: {integrity: sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==}
-    dev: false
-
   /ts-api-utils@1.2.1(typescript@5.3.3):
     resolution: {integrity: sha512-RIYA36cJn2WiH9Hy77hdF9r7oEwxAtB/TS9/S4Qd90Ap4z5FSiin5zEiTL44OII1Y3IIlEvxwxFUVgrHSZ/UpA==}
     engines: {node: '>=16'}
@@ -2090,17 +2021,6 @@ packages:
     resolution: {integrity: sha512-AFbieoL7a5LMqcnOF04ji+rpXadgOXnZsxQr//r83kLPr7biP7am3g9zbaZIaBGwBRWeSvoMD4mgPdX3e4NWBg==}
     dev: true
 
-  /webidl-conversions@3.0.1:
-    resolution: {integrity: sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==}
-    dev: false
-
-  /whatwg-url@5.0.0:
-    resolution: {integrity: sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==}
-    dependencies:
-      tr46: 0.0.3
-      webidl-conversions: 3.0.1
-    dev: false
-
   /which@2.0.2:
     resolution: {integrity: sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==}
     engines: {node: '>= 8'}
diff --git a/src/http.ts b/src/http.ts
index 337399f..73f8cc1 100644
--- a/src/http.ts
+++ b/src/http.ts
@@ -1,5 +1,3 @@
-import fetch from "cross-fetch";
-import FormData from "form-data";
 import { AddAdmin } from "./types/AddAdmin";
 import { AddAdminResponse } from "./types/AddAdminResponse";
 import { AddModToCommunity } from "./types/AddModToCommunity";
@@ -153,7 +151,7 @@ export class LemmyHttp {
   #apiUrl: string;
   #headers: { [key: string]: string } = {};
   #pictrsUrl: string;
-  #fetchFunction = fetch;
+  #fetchFunction = fetch.bind(globalThis);
 
   /**
    * Generates a new instance of LemmyHttp.
@@ -1524,11 +1522,15 @@ function encodeGetParams<BodyType extends object>(p: BodyType): string {
 function createFormData(image: File | Buffer): FormData {
   let formData = new FormData();
 
-  if (image.constructor.name === "File") {
+  if (image instanceof File) {
     formData.append("images[]", image);
   } else {
     // The filename doesn't affect the file type or file name that ends up in pictrs
-    formData.append("images[]", image, { filename: "image.jpg" });
+    formData.append(
+      "images[]",
+      new Blob([image], { type: "image/jpeg" }),
+      "image.jpg",
+    );
   }
 
   return formData;