diff --git a/ui-ngx/src/app/modules/home/components/device/device-credentials-mqtt-basic.component.html b/ui-ngx/src/app/modules/home/components/device/device-credentials-mqtt-basic.component.html
index 4025e34dda..be71d3724e 100644
--- a/ui-ngx/src/app/modules/home/components/device/device-credentials-mqtt-basic.component.html
+++ b/ui-ngx/src/app/modules/home/components/device/device-credentials-mqtt-basic.component.html
@@ -19,6 +19,26 @@
   <mat-form-field class="mat-block">
     <mat-label translate>device.client-id</mat-label>
     <input matInput formControlName="clientId">
+    <button type="button"
+            matSuffix
+            mat-icon-button
+            aria-label="Generate"
+            matTooltip="{{ 'device.generate-client-id' | translate }}"
+            matTooltipPosition="above"
+            (click)="generate('clientId')"
+            *ngIf="!deviceCredentialsMqttFormGroup.get('clientId').value; else copyClientId">
+      <mat-icon>autorenew</mat-icon>
+    </button>
+    <ng-template #copyClientId>
+      <tb-copy-button
+        matSuffix
+        miniButton="false"
+        [copyText]="deviceCredentialsMqttFormGroup.get('clientId').value"
+        tooltipText="{{ 'device.copy-client-id' | translate }}"
+        tooltipPosition="above"
+        icon="content_copy">
+      </tb-copy-button>
+    </ng-template>
     <mat-error *ngIf="deviceCredentialsMqttFormGroup.get('clientId').hasError('pattern')">
       {{ 'device.client-id-pattern' | translate }}
     </mat-error>
@@ -26,6 +46,27 @@
   <mat-form-field class="mat-block">
     <mat-label translate>device.user-name</mat-label>
     <input matInput formControlName="userName" [required]="!!deviceCredentialsMqttFormGroup.get('password').value">
+    <button type="button"
+            matSuffix
+            mat-icon-button
+            aria-label="Generate"
+            matTooltip="{{ 'device.generate-user-name' | translate }}"
+            matTooltipPosition="above"
+            (click)="generate('userName')"
+            *ngIf="!deviceCredentialsMqttFormGroup.get('userName').value; else copyUserName">
+      <mat-icon>autorenew</mat-icon>
+    </button>
+    <ng-template #copyUserName>
+      <tb-copy-button
+        matSuffix
+        miniButton="false"
+        *ngIf="deviceCredentialsMqttFormGroup.get('userName').value"
+        [copyText]="deviceCredentialsMqttFormGroup.get('userName').value"
+        tooltipText="{{ 'device.copy-user-name' | translate }}"
+        tooltipPosition="above"
+        icon="content_copy">
+      </tb-copy-button>
+    </ng-template>
     <mat-error *ngIf="deviceCredentialsMqttFormGroup.get('userName').hasError('required')">
       {{ 'device.user-name-required' | translate }}
     </mat-error>
@@ -37,6 +78,27 @@
            (ngModelChange)="passwordChanged()"
            type="password">
     <tb-toggle-password matSuffix></tb-toggle-password>
+    <button type="button"
+            matSuffix
+            mat-icon-button
+            aria-label="Generate"
+            matTooltip="{{ 'device.generate-password' | translate }}"
+            matTooltipPosition="above"
+            (click)="generate('password')"
+            *ngIf="!deviceCredentialsMqttFormGroup.get('password').value; else copyPassword">
+      <mat-icon>autorenew</mat-icon>
+    </button>
+    <ng-template #copyPassword>
+      <tb-copy-button
+        matSuffix
+        miniButton="false"
+        *ngIf="deviceCredentialsMqttFormGroup.get('password').value"
+        [copyText]="deviceCredentialsMqttFormGroup.get('password').value"
+        tooltipText="{{ 'device.copy-password' | translate }}"
+        tooltipPosition="above"
+        icon="content_copy">
+      </tb-copy-button>
+    </ng-template>
   </mat-form-field>
   <tb-error style="margin-top: -12px; display: block;"
             [error]="deviceCredentialsMqttFormGroup.hasError('atLeastOne') ?
diff --git a/ui-ngx/src/app/modules/home/components/device/device-credentials-mqtt-basic.component.ts b/ui-ngx/src/app/modules/home/components/device/device-credentials-mqtt-basic.component.ts
index 4db3b51146..4904aab324 100644
--- a/ui-ngx/src/app/modules/home/components/device/device-credentials-mqtt-basic.component.ts
+++ b/ui-ngx/src/app/modules/home/components/device/device-credentials-mqtt-basic.component.ts
@@ -29,7 +29,7 @@ import {
 import { Subject } from 'rxjs';
 import { DeviceCredentialMQTTBasic } from '@shared/models/device.models';
 import { takeUntil } from 'rxjs/operators';
-import { isDefinedAndNotNull, isEmptyStr } from '@core/utils';
+import { generateSecret, isDefinedAndNotNull, isEmptyStr } from '@core/utils';
 
 @Component({
   selector: 'tb-device-credentials-mqtt-basic',
@@ -128,4 +128,8 @@ export class DeviceCredentialsMqttBasicComponent implements ControlValueAccessor
       return hasAtLeastOne ? null : {atLeastOne: true};
     };
   }
+
+  public generate(formControlName: string) {
+    this.deviceCredentialsMqttFormGroup.get(formControlName).patchValue(generateSecret(20));
+  }
 }
diff --git a/ui-ngx/src/app/modules/home/components/device/device-credentials.component.html b/ui-ngx/src/app/modules/home/components/device/device-credentials.component.html
index fe5149cfac..303c46ef70 100644
--- a/ui-ngx/src/app/modules/home/components/device/device-credentials.component.html
+++ b/ui-ngx/src/app/modules/home/components/device/device-credentials.component.html
@@ -29,6 +29,26 @@
       <mat-form-field class="mat-block">
         <mat-label translate>device.access-token</mat-label>
         <input matInput formControlName="credentialsId" required>
+        <button type="button"
+                matSuffix
+                mat-icon-button
+                aria-label="Generate"
+                matTooltip="{{ 'device.generate-access-token' | translate }}"
+                matTooltipPosition="above"
+                (click)="generate('credentialsId')"
+                *ngIf="!deviceCredentialsFormGroup.get('credentialsId').value; else copyAccessToken">
+          <mat-icon>autorenew</mat-icon>
+        </button>
+        <ng-template #copyAccessToken>
+          <tb-copy-button
+            matSuffix
+            miniButton="false"
+            [copyText]="deviceCredentialsFormGroup.get('credentialsId').value"
+            tooltipText="{{ 'device.copy-access-token' | translate }}"
+            tooltipPosition="above"
+            icon="content_copy">
+          </tb-copy-button>
+        </ng-template>
         <mat-error *ngIf="deviceCredentialsFormGroup.get('credentialsId').hasError('required')">
           {{ 'device.access-token-required' | translate }}
         </mat-error>
@@ -41,6 +61,15 @@
       <mat-form-field class="mat-block">
         <mat-label translate>device.certificate-pem-format</mat-label>
         <textarea matInput formControlName="credentialsValue" cols="15" rows="5" required></textarea>
+        <tb-copy-button
+          matSuffix
+          miniButton="false"
+          *ngIf="deviceCredentialsFormGroup.get('credentialsValue').value"
+          [copyText]="deviceCredentialsFormGroup.get('credentialsValue').value"
+          tooltipText="{{ 'device.copy-certificate' | translate }}"
+          tooltipPosition="above"
+          icon="content_copy">
+        </tb-copy-button>
         <mat-error *ngIf="deviceCredentialsFormGroup.get('credentialsValue').hasError('required')">
           {{ 'device.certificate-pem-format-required' | translate }}
         </mat-error>
diff --git a/ui-ngx/src/app/modules/home/components/device/device-credentials.component.ts b/ui-ngx/src/app/modules/home/components/device/device-credentials.component.ts
index 2e2f20eb24..bc9af3867e 100644
--- a/ui-ngx/src/app/modules/home/components/device/device-credentials.component.ts
+++ b/ui-ngx/src/app/modules/home/components/device/device-credentials.component.ts
@@ -34,7 +34,7 @@ import {
 } from '@shared/models/device.models';
 import { Subject } from 'rxjs';
 import { takeUntil } from 'rxjs/operators';
-import { isDefinedAndNotNull } from '@core/utils';
+import { generateSecret, isDefinedAndNotNull } from '@core/utils';
 
 @Component({
   selector: 'tb-device-credentials',
@@ -181,4 +181,8 @@ export class DeviceCredentialsComponent implements ControlValueAccessor, OnInit,
         break;
     }
   }
+
+  public generate(formControlName: string) {
+    this.deviceCredentialsFormGroup.get(formControlName).patchValue(generateSecret(20));
+  }
 }
diff --git a/ui-ngx/src/app/modules/home/pages/admin/oauth2-settings.component.html b/ui-ngx/src/app/modules/home/pages/admin/oauth2-settings.component.html
index fb78ba0b97..bc5ffd3ae5 100644
--- a/ui-ngx/src/app/modules/home/pages/admin/oauth2-settings.component.html
+++ b/ui-ngx/src/app/modules/home/pages/admin/oauth2-settings.component.html
@@ -95,6 +95,7 @@
                                         <input matInput [value]="redirectURI(domainInfo)" readonly>
                                         <tb-copy-button
                                           matSuffix
+                                          miniButton="false"
                                           color="primary"
                                           [copyText]="redirectURI(domainInfo)"
                                           tooltipText="{{ 'admin.oauth2.copy-redirect-uri' | translate }}"
@@ -106,6 +107,7 @@
                                         <input matInput [value]="redirectURIMixed(domainInfo)" readonly>
                                         <tb-copy-button
                                           matSuffix
+                                          miniButton="false"
                                           color="primary"
                                           [copyText]="redirectURIMixed(domainInfo)"
                                           tooltipText="{{ 'admin.oauth2.copy-redirect-uri' | translate }}"
@@ -164,6 +166,7 @@
                                         <textarea matInput formControlName="appSecret" rows="1" required></textarea>
                                         <tb-copy-button
                                           matSuffix
+                                          miniButton="false"
                                           color="primary"
                                           [copyText]="mobileInfo.get('appSecret').value"
                                           tooltipText="{{ 'admin.oauth2.copy-mobile-app-secret' | translate }}"
diff --git a/ui-ngx/src/app/shared/components/button/copy-button.component.html b/ui-ngx/src/app/shared/components/button/copy-button.component.html
index 5311b2c947..640d467998 100644
--- a/ui-ngx/src/app/shared/components/button/copy-button.component.html
+++ b/ui-ngx/src/app/shared/components/button/copy-button.component.html
@@ -17,6 +17,7 @@
 -->
 <button mat-icon-button
         type="button"
+        [ngClass]="{'mini-button': miniButton}"
         [color]="color"
         [disabled]="disabled"
         [matTooltip]="matTooltipText"
diff --git a/ui-ngx/src/app/shared/components/button/copy-button.component.scss b/ui-ngx/src/app/shared/components/button/copy-button.component.scss
index ddb0134283..0818466a38 100644
--- a/ui-ngx/src/app/shared/components/button/copy-button.component.scss
+++ b/ui-ngx/src/app/shared/components/button/copy-button.component.scss
@@ -13,20 +13,23 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+@import "../../../../theme";
+
 :host {
-  .mat-mdc-icon-button{
+  .mini-button {
     height: 32px;
     width: 32px;
     line-height: 32px;
     padding: 4px;
     vertical-align: middle;
-    .mat-icon.copied{
-      color: #00C851 !important;
-    }
+  }
+
+  .mat-icon.copied{
+    color: #00C851 !important;
   }
   &:hover{
     .mat-icon{
-      color: #28567E !important;
+      color: $tb-primary-color !important;
     }
   }
 }
diff --git a/ui-ngx/src/app/shared/components/button/copy-button.component.ts b/ui-ngx/src/app/shared/components/button/copy-button.component.ts
index 372bdfd280..0b815a6ff9 100644
--- a/ui-ngx/src/app/shared/components/button/copy-button.component.ts
+++ b/ui-ngx/src/app/shared/components/button/copy-button.component.ts
@@ -19,6 +19,7 @@ import { ClipboardService } from 'ngx-clipboard';
 import { TooltipPosition } from '@angular/material/tooltip';
 import { TranslateService } from '@ngx-translate/core';
 import { ThemePalette } from '@angular/material/core';
+import { coerceBoolean } from '@shared/decorators/coerce-boolean';
 
 @Component({
   selector: 'tb-copy-button',
@@ -35,6 +36,7 @@ export class CopyButtonComponent {
   copyText: string;
 
   @Input()
+  @coerceBoolean()
   disabled = false;
 
   @Input()
@@ -55,6 +57,10 @@ export class CopyButtonComponent {
   @Input()
   color: ThemePalette;
 
+  @Input()
+  @coerceBoolean()
+  miniButton = true;
+
   @Output()
   successCopied = new EventEmitter<string>();
 
diff --git a/ui-ngx/src/assets/locale/locale.constant-en_US.json b/ui-ngx/src/assets/locale/locale.constant-en_US.json
index 801aff32bf..d41ada03f8 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -1233,6 +1233,15 @@
         "access-token-invalid": "Access token length must be from 1 to 32 characters.",
         "certificate-pem-format": "Certificate in PEM format",
         "certificate-pem-format-required": "Certificate is required.",
+        "copy-access-token": "Copy Access token",
+        "copy-certificate": "Copy Certificate",
+        "copy-client-id": "Copy Client ID",
+        "copy-user-name": "Copy User name",
+        "copy-password": "Copy Password",
+        "generate-client-id": "Generate Client ID",
+        "generate-user-name": "Generate User name",
+        "generate-password": "Generate Password",
+        "generate-access-token": "Generate Access Token",
         "lwm2m-security-config": {
           "identity": "Client Identity",
           "identity-required": "Client Identity is required.",