diff --git a/android/src/main/java/com/eko/RNBGDTaskConfig.java b/android/src/main/java/com/eko/RNBGDTaskConfig.java
index 99a6d9c..5f05a3e 100644
--- a/android/src/main/java/com/eko/RNBGDTaskConfig.java
+++ b/android/src/main/java/com/eko/RNBGDTaskConfig.java
@@ -4,10 +4,12 @@ import java.io.Serializable;
 
 public class RNBGDTaskConfig implements Serializable {
     public String id;
+    public String metadata;
     public boolean reportedBegin;
 
-    public RNBGDTaskConfig(String id) {
+    public RNBGDTaskConfig(String id, String metadata) {
         this.id = id;
+        this.metadata = metadata;
         this.reportedBegin = false;
     }
-}
\ No newline at end of file
+}
diff --git a/android/src/main/java/com/eko/RNBackgroundDownloaderModule.java b/android/src/main/java/com/eko/RNBackgroundDownloaderModule.java
index 8888b53..499e3ea 100644
--- a/android/src/main/java/com/eko/RNBackgroundDownloaderModule.java
+++ b/android/src/main/java/com/eko/RNBackgroundDownloaderModule.java
@@ -204,13 +204,14 @@ public class RNBackgroundDownloaderModule extends ReactContextBaseJavaModule imp
     String url = options.getString("url");
     String destination = options.getString("destination");
     ReadableMap headers = options.getMap("headers");
+    String metadata = options.getString("metadata");
 
     if (id == null || url == null || destination == null) {
       Log.e(getName(), "id, url and destination must be set");
       return;
     }
 
-    RNBGDTaskConfig config = new RNBGDTaskConfig(id);
+    RNBGDTaskConfig config = new RNBGDTaskConfig(id, metadata);
     final Request request = new Request(url, destination);
     if (headers != null) {
       ReadableMapKeySetIterator it = headers.keySetIterator();
@@ -298,6 +299,7 @@ public class RNBackgroundDownloaderModule extends ReactContextBaseJavaModule imp
               RNBGDTaskConfig config = requestIdToConfig.get(download.getId());
               WritableMap params = Arguments.createMap();
               params.putString("id", config.id);
+              params.putString("metadata", config.metadata);
               params.putInt("state", stateMap.get(download.getStatus()));
               params.putInt("bytesWritten", (int)download.getDownloaded());
               params.putInt("totalBytes", (int)download.getTotal());
diff --git a/index.js b/index.js
index a5bf0db..0713215 100644
--- a/index.js
+++ b/index.js
@@ -84,6 +84,12 @@ export function download (options) {
   else
     options.headers = headers
 
+  if (options.metadata && typeof options.metadata === 'object')
+    options.metadata = JSON.stringify(options.metadata)
+  else
+    options.metadata = JSON.stringify({})
+
+
   RNBackgroundDownloader.download(options)
   const task = new DownloadTask(options.id)
   tasksMap.set(options.id, task)
diff --git a/ios/RNBGDTaskConfig.h b/ios/RNBGDTaskConfig.h
index 8e51869..09f488c 100644
--- a/ios/RNBGDTaskConfig.h
+++ b/ios/RNBGDTaskConfig.h
@@ -12,6 +12,7 @@
 
 @property NSString * _Nonnull id;
 @property NSString * _Nonnull destination;
+@property NSString * _Nonnull metadata;
 @property BOOL reportedBegin;
 
 - (id _Nullable )initWithDictionary: (NSDictionary *_Nonnull)dict;
@@ -25,15 +26,17 @@
     if (self) {
         self.id = dict[@"id"];
         self.destination = dict[@"destination"];
+        self.metadata = dict[@"metadata"];
         self.reportedBegin = NO;
     }
-    
+
     return self;
 }
 
 - (void)encodeWithCoder:(nonnull NSCoder *)aCoder {
     [aCoder encodeObject:self.id forKey:@"id"];
     [aCoder encodeObject:self.destination forKey:@"destination"];
+    [aCoder encodeObject:self.metadata forKey:@"metadata"];
     [aCoder encodeBool:self.reportedBegin forKey:@"reportedBegin"];
 }
 
@@ -42,9 +45,10 @@
     if (self) {
         self.id = [aDecoder decodeObjectForKey:@"id"];
         self.destination = [aDecoder decodeObjectForKey:@"destination"];
+        self.metadata = [aDecoder decodeObjectForKey:@"metadata"];
         self.reportedBegin = [aDecoder decodeBoolForKey:@"reportedBegin"];
     }
-    
+
     return self;
 }
 
diff --git a/ios/RNBackgroundDownloader.m b/ios/RNBackgroundDownloader.m
index 062de00..8d0ea01 100644
--- a/ios/RNBackgroundDownloader.m
+++ b/ios/RNBackgroundDownloader.m
@@ -200,6 +200,7 @@ RCT_EXPORT_METHOD(download: (NSDictionary *) options) {
     NSString *identifier = options[@"id"];
     NSString *url = options[@"url"];
     NSString *destination = options[@"destination"];
+    NSString *metadata = options[@"metadata"];
     NSDictionary *headers = options[@"headers"];
     if (identifier == nil || url == nil || destination == nil) {
         NSLog(@"[RNBackgroundDownloader] - [Error] id, url and destination must be set");
@@ -221,7 +222,7 @@ RCT_EXPORT_METHOD(download: (NSDictionary *) options) {
             return;
         }
 
-        RNBGDTaskConfig *taskConfig = [[RNBGDTaskConfig alloc] initWithDictionary: @{@"id": identifier, @"destination": destination}];
+        RNBGDTaskConfig *taskConfig = [[RNBGDTaskConfig alloc] initWithDictionary: @{@"id": identifier, @"destination": destination, @"metadata": metadata}}];
 
         taskToConfigMap[@(task.taskIdentifier)] = taskConfig;
         [[NSUserDefaults standardUserDefaults] setObject:[self serialize: taskToConfigMap] forKey:ID_TO_CONFIG_MAP_KEY];
@@ -286,6 +287,7 @@ RCT_EXPORT_METHOD(checkForExistingDownloads: (RCTPromiseResolveBlock)resolve rej
                     NSNumber *percent = foundTask.countOfBytesExpectedToReceive > 0 ? [NSNumber numberWithFloat:(float)task.countOfBytesReceived/(float)foundTask.countOfBytesExpectedToReceive] : @0.0;
                     [idsFound addObject:@{
                                           @"id": taskConfig.id,
+                                          @"metadata": taskConfig.metadata,
                                           @"state": [NSNumber numberWithInt: task.state],
                                           @"bytesWritten": [NSNumber numberWithLongLong:task.countOfBytesReceived],
                                           @"totalBytes": [NSNumber numberWithLongLong:foundTask.countOfBytesExpectedToReceive],
diff --git a/lib/downloadTask.js b/lib/downloadTask.js
index c50dc5d..80c341f 100644
--- a/lib/downloadTask.js
+++ b/lib/downloadTask.js
@@ -10,6 +10,7 @@ export default class DownloadTask {
     percent = 0
     bytesWritten = 0
     totalBytes = 0
+    metadata = {}
 
     constructor (taskInfo, originalTask) {
       if (typeof taskInfo === 'string') {
@@ -19,6 +20,10 @@ export default class DownloadTask {
         this.percent = taskInfo.percent
         this.bytesWritten = taskInfo.bytesWritten
         this.totalBytes = taskInfo.totalBytes
+
+        if (this.#parseable(taskInfo.metadata)) {
+          this.metadata = JSON.parse(taskInfo.metadata);
+        }
       }
 
       if (originalTask) {
@@ -93,4 +98,13 @@ export default class DownloadTask {
       this.state = 'STOPPED'
       RNBackgroundDownloader.stopTask(this.id)
     }
+
+    #parseable = (element) => {
+      try {
+        JSON.parse(element);
+        return true;
+      } catch (err) {
+        return false;
+      }
+    }
 }