diff --git a/package.json b/package.json
index 1b9a600..fbeb141 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,10 @@
             "name": "Paritosh Patel",
             "email": "13868399+paritosh64ce@users.noreply.github.com",
             "url": "https://simplyfyingtechblog.wordpress.com"
+        },
+        {
+            "name": "Alexandre Moore",
+            "url": "https://github.com/alexandremoore"
         }
     ],
     "repository": {
diff --git a/src/services/cache.service.ts b/src/services/cache.service.ts
index f8c1e30..64595ff 100644
--- a/src/services/cache.service.ts
+++ b/src/services/cache.service.ts
@@ -14,6 +14,12 @@ const DEFAULT_ENABLED_STORAGE = CacheStoragesEnum.MEMORY;
 
 @Injectable()
 export class CacheService {
+    /**
+     * The number of data items stored in the storage
+     */
+    public get length(): number {
+        return this._storage ? this._storage.length : 0 ;
+    }
 
     /**
      * Default cache options
@@ -147,6 +153,14 @@ export class CacheService {
         this._prefix = prefix;
     }
 
+    /**
+     * Get the name of the nth key in the storage
+     * @param index
+     */
+    public key(index: number): string | null {
+        return this._storage.key(index);
+    }
+
     /**
      * Validate cache storage
      */
diff --git a/src/services/storage/cache-storage-abstract.service.ts b/src/services/storage/cache-storage-abstract.service.ts
index d7b4d31..72f5f61 100644
--- a/src/services/storage/cache-storage-abstract.service.ts
+++ b/src/services/storage/cache-storage-abstract.service.ts
@@ -5,6 +5,10 @@ import {StorageValueInterface} from '../../interfaces/storage-value.interface';
  * Abstract cache storage
  */
 export abstract class CacheStorageAbstract {
+    /**
+     * The number of data items stored in the storage
+     */
+    public abstract readonly length: number;
 
     /**
      * Get item from storage
@@ -40,4 +44,10 @@ export abstract class CacheStorageAbstract {
      */
     public abstract isEnabled(): boolean;
 
+    /**
+     * Get the name of the nth key in the storage
+     * @param index
+     */
+    public abstract key(index: number): string | null;
+
 }
diff --git a/src/services/storage/local-storage/cache-local-storage.service.ts b/src/services/storage/local-storage/cache-local-storage.service.ts
index d19f34f..5e0fa4c 100644
--- a/src/services/storage/local-storage/cache-local-storage.service.ts
+++ b/src/services/storage/local-storage/cache-local-storage.service.ts
@@ -8,6 +8,9 @@ import {StorageValueInterface} from '../../../interfaces/storage-value.interface
  */
 @Injectable()
 export class CacheLocalStorage extends CacheStorageAbstract {
+    public get length(): number {
+        return localStorage ? localStorage.length : 0 ;
+    }
 
     public getItem(key: string) {
         const value = localStorage.getItem(key);
@@ -44,4 +47,8 @@ export class CacheLocalStorage extends CacheStorageAbstract {
             return false;
         }
     }
+
+    public key(index: number): string | null {
+        return localStorage.key(index);
+    }
 }
diff --git a/src/services/storage/memory/cache-memory.service.ts b/src/services/storage/memory/cache-memory.service.ts
index f3be614..83f79a1 100644
--- a/src/services/storage/memory/cache-memory.service.ts
+++ b/src/services/storage/memory/cache-memory.service.ts
@@ -11,6 +11,10 @@ export class CacheMemoryStorage extends CacheStorageAbstract {
 
     private _data: {[key: string]: any} = {};
 
+    public get length(): number {
+        return (this._data && Object.keys(this._data)) ? Object.keys(this._data).length : 0 ;
+    }
+
     public getItem(key: string) {
         return this._data[key] ? this._data[key] : null;
     }
@@ -35,4 +39,8 @@ export class CacheMemoryStorage extends CacheStorageAbstract {
     public isEnabled() {
         return true;
     }
+
+    public key(index: number): string | null {
+        return (this._data && Object.keys(this._data)) ? Object.keys(this._data)[index] : null;
+    }
 }
diff --git a/src/services/storage/session-storage/cache-session-storage.service.ts b/src/services/storage/session-storage/cache-session-storage.service.ts
index aa6c430..84f1a0c 100644
--- a/src/services/storage/session-storage/cache-session-storage.service.ts
+++ b/src/services/storage/session-storage/cache-session-storage.service.ts
@@ -8,6 +8,9 @@ import {StorageValueInterface} from '../../../interfaces/storage-value.interface
  */
 @Injectable()
 export class CacheSessionStorage extends CacheStorageAbstract {
+    public get length(): number {
+        return sessionStorage ? sessionStorage.length : 0 ;
+    }
 
     public getItem(key: string) {
         let value = sessionStorage.getItem(key);
@@ -44,4 +47,8 @@ export class CacheSessionStorage extends CacheStorageAbstract {
             return false;
         }
     }
+
+    public key(index: number): string | null {
+        return sessionStorage.key(index);
+    }
 }