diff --git a/native/expo-modules/comm-expo-package/expo-module.config.json b/native/expo-modules/comm-expo-package/expo-module.config.json
--- a/native/expo-modules/comm-expo-package/expo-module.config.json
+++ b/native/expo-modules/comm-expo-package/expo-module.config.json
@@ -1,7 +1,7 @@
 {
   "platforms": ["ios", "android"],
   "ios": {
-    "modules": ["AESCryptoModule", "ThumbhashModule"]
+    "modules": ["AESCryptoModule", "BlobUtilsModule", "ThumbhashModule"]
   },
   "android": {
     "modules": [
diff --git a/native/expo-modules/comm-expo-package/ios/AESCryptoModule.swift b/native/expo-modules/comm-expo-package/ios/AESCryptoModule.swift
--- a/native/expo-modules/comm-expo-package/ios/AESCryptoModule.swift
+++ b/native/expo-modules/comm-expo-package/ios/AESCryptoModule.swift
@@ -66,19 +66,6 @@
   plaintext.copyBytes(to: destination.rawBufferPtr())
 }
 
-// MARK: - Utilities
-
-extension TypedArray {
-  func data() -> Data {
-    Data(bytes: self.rawPointer, count: self.byteLength)
-  }
-  
-  func rawBufferPtr() -> UnsafeMutableRawBufferPointer {
-    UnsafeMutableRawBufferPointer(start: self.rawPointer,
-                                  count: self.byteLength)
-  }
-}
-
 // MARK: - Exception definitions
 
 private class InvalidKeyLengthException: Exception {
diff --git a/native/expo-modules/comm-expo-package/ios/BlobUtilsModule.swift b/native/expo-modules/comm-expo-package/ios/BlobUtilsModule.swift
new file mode 100644
--- /dev/null
+++ b/native/expo-modules/comm-expo-package/ios/BlobUtilsModule.swift
@@ -0,0 +1,70 @@
+import ExpoModulesCore
+
+// This type corresponds to the BlobData interface in react-native
+struct BlobMetadata: Record {
+  @Field var blobId: String
+  @Field var size: Int
+  @Field var offset: Int
+}
+
+public class BlobUtilsModule: Module {
+  public func definition() -> ModuleDefinition {
+    Name("BlobUtils")
+
+    Function("copyBlobToTypedArray") {
+      (blob: BlobMetadata, destination: Uint8Array) throws in
+      let blobManager = try self.getReactBlobManager()
+      guard let blobData = blobManager.resolve(blob.blobId,
+                                               offset: blob.offset,
+                                               size: blob.size) else {
+        throw NoSuchBlobException(blob.blobId)
+      }
+      blobData.copyBytes(to: destination.rawBufferPtr())
+    }
+
+    Function("blobFromTypedArray") { (source: TypedArray) throws -> String in
+      let blobManager = try self.getReactBlobManager()
+      guard let blobID = blobManager.store(source.data()) else {
+        throw BlobCreationFailedException()
+      }
+      return blobID
+    }
+  }
+
+  private func getReactBlobManager() throws -> RCTBlobManager {
+    guard let bridge = self.appContext?.reactBridge else {
+      throw BridgeNotFoundException()
+    }
+    guard let blobManager = bridge.module(for: RCTBlobManager.self)
+            as? RCTBlobManager else {
+      throw BlobManagerNotFoundException()
+    }
+    return blobManager
+  }
+}
+
+// MARK: Exception definitions
+
+class BridgeNotFoundException: Exception {
+  override var reason: String {
+    "React bridge is null"
+  }
+}
+
+class BlobManagerNotFoundException: Exception {
+  override var reason: String {
+    "Module RCTBlobManager not found"
+  }
+}
+
+class NoSuchBlobException: GenericException<String> {
+  override var reason: String {
+    "No blob data found for blob id=\(param)"
+  }
+}
+
+class BlobCreationFailedException: Exception {
+  override var reason: String {
+    "Failed to store blob"
+  }
+}
diff --git a/native/expo-modules/comm-expo-package/ios/TypedArray+data.swift b/native/expo-modules/comm-expo-package/ios/TypedArray+data.swift
new file mode 100644
--- /dev/null
+++ b/native/expo-modules/comm-expo-package/ios/TypedArray+data.swift
@@ -0,0 +1,12 @@
+import ExpoModulesCore
+
+extension TypedArray {
+  func data() -> Data {
+    Data(bytes: self.rawPointer, count: self.byteLength)
+  }
+  
+  func rawBufferPtr() -> UnsafeMutableRawBufferPointer {
+    UnsafeMutableRawBufferPointer(start: self.rawPointer,
+                                  count: self.byteLength)
+  }
+}
diff --git a/native/utils/blob-utils-module.js b/native/utils/blob-utils-module.js
new file mode 100644
--- /dev/null
+++ b/native/utils/blob-utils-module.js
@@ -0,0 +1,44 @@
+// @flow
+
+import { requireNativeModule } from 'expo-modules-core';
+import RNBlob from 'react-native/Libraries/Blob/Blob.js';
+import BlobManager from 'react-native/Libraries/Blob/BlobManager.js';
+import type { BlobData } from 'react-native/Libraries/Blob/BlobTypes.js';
+
+const BlobUtilsModule: {
+  +copyBlobToTypedArray: (blob: BlobData, destination: Uint8Array) => void,
+  +blobFromTypedArray: (data: $TypedArray) => string,
+} = requireNativeModule('BlobUtils');
+
+function arrayBufferFromBlob(blob: Blob): ArrayBuffer {
+  // $FlowFixMe: react-native Blob type is incompatible with global Blob type
+  const rnBlob = (blob: RNBlob);
+  if (!(rnBlob instanceof RNBlob)) {
+    throw new Error(
+      'Given blob is not a React Native blob. Missing "data" property.',
+    );
+  }
+  const blobData = rnBlob.data;
+
+  const resultArray = new Uint8Array(blob.size);
+  BlobUtilsModule.copyBlobToTypedArray(blobData, resultArray);
+  return resultArray.buffer;
+}
+
+function blobFromArrayBuffer(arrayBuffer: ArrayBuffer, type?: string): Blob {
+  const typedArray = new Uint8Array(arrayBuffer);
+  const blobID = BlobUtilsModule.blobFromTypedArray(typedArray);
+  const reactNativeBlob = BlobManager.createFromOptions({
+    blobId: blobID,
+    offset: 0,
+    size: arrayBuffer.byteLength,
+    type: type || '',
+    lastModified: Date.now(),
+  });
+
+  // $FlowFixMe: react-native Blob type is incompatible with global Blob type
+  // $FlowFixMe: even though they have the same properties
+  return (reactNativeBlob: Blob);
+}
+
+export { arrayBufferFromBlob, blobFromArrayBuffer };