diff --git a/src/main/frontend/src/app/component/category/all-categories/all-categories.component.html b/src/main/frontend/src/app/component/category/all-categories/all-categories.component.html
index b60a08f..9cd1b18 100644
--- a/src/main/frontend/src/app/component/category/all-categories/all-categories.component.html
+++ b/src/main/frontend/src/app/component/category/all-categories/all-categories.component.html
@@ -1,6 +1,6 @@
 <table mat-table [dataSource]="categories" class="mat-elevation-z8">
   <ng-container matColumnDef="name">
-    <th *matHeaderCellDef mat-header-cell> Category name</th>
+    <th *matHeaderCellDef mat-header-cell> Nazwa kategorii</th>
     <td *matCellDef="let category" mat-cell>
       {{ category.name }}
       @if (category.categoryIconName) {
@@ -9,7 +9,7 @@
     </td>
   </ng-container>
   <ng-container matColumnDef="actions">
-    <th *matHeaderCellDef mat-header-cell> Actions</th>
+    <th *matHeaderCellDef mat-header-cell> Akcja</th>
     <td *matCellDef="let category" mat-cell>
       <mat-icon (click)="editCategory(category)" class="pointer">edit</mat-icon>&nbsp;
       <mat-icon (click)="deleteCategory(category)" class="pointer">delete</mat-icon>
diff --git a/src/main/frontend/src/app/component/common/confirmation/confirmation.component.html b/src/main/frontend/src/app/component/common/confirmation/confirmation.component.html
index 4870e6b..41bf88d 100644
--- a/src/main/frontend/src/app/component/common/confirmation/confirmation.component.html
+++ b/src/main/frontend/src/app/component/common/confirmation/confirmation.component.html
@@ -1,6 +1,6 @@
-<h2 mat-dialog-title>Delete {{data.category}} {{data.content}} ?</h2>
-<mat-dialog-content>This will delete {{data.category}} {{data.content}} and cannot be undone.</mat-dialog-content>
+<h2 mat-dialog-title>Skasuj {{ data.category }} {{ data.content }} ?</h2>
+<mat-dialog-content>To skasuje {{ data.category }} {{ data.content }} i nie można tego cofnąć.</mat-dialog-content>
 <div mat-dialog-actions>
-  <button (click)="onNoClick()" cdkFocusInitial mat-button>No</button>
+  <button (click)="onNoClick()" cdkFocusInitial mat-button>Nie</button>
   <button (click)="onYesClick()" mat-button>Ok</button>
 </div>
diff --git a/src/main/frontend/src/app/component/common/forgot-password/forgot-password.component.html b/src/main/frontend/src/app/component/common/forgot-password/forgot-password.component.html
index c2ef52d..ff3a7b2 100644
--- a/src/main/frontend/src/app/component/common/forgot-password/forgot-password.component.html
+++ b/src/main/frontend/src/app/component/common/forgot-password/forgot-password.component.html
@@ -41,11 +41,11 @@
           <div class="col-xs-12">
             <button [disabled]="this.userForm.invalid"
                     mat-raised-button
-                    type="submit">Retrieve new password
+                    type="submit">Nowe hasło
             </button>
             <button (click)="onCancel()"
                     mat-raised-button
-                    type="button">Cancel
+                    type="button">Anuluj
             </button>
           </div>
         </div>
diff --git a/src/main/frontend/src/app/component/common/user-menu/user-menu.component.html b/src/main/frontend/src/app/component/common/user-menu/user-menu.component.html
index 84e1654..bca94d0 100644
--- a/src/main/frontend/src/app/component/common/user-menu/user-menu.component.html
+++ b/src/main/frontend/src/app/component/common/user-menu/user-menu.component.html
@@ -5,7 +5,7 @@
     {{ currentUser.name }}
   </button>
   <mat-menu #menu="matMenu">
-    <button mat-menu-item routerLink="/user/details/{{currentUser.id}}">User profile</button>
+    <button mat-menu-item routerLink="/user/details/{{currentUser.id}}">Profil użytkownika</button>
     <button mat-menu-item (click)="logout()">Logout</button>
   </mat-menu>
 } @else {
diff --git a/src/main/frontend/src/app/component/expense/all-expenses/all-expenses.component.html b/src/main/frontend/src/app/component/expense/all-expenses/all-expenses.component.html
index 6dd62b4..00999da 100644
--- a/src/main/frontend/src/app/component/expense/all-expenses/all-expenses.component.html
+++ b/src/main/frontend/src/app/component/expense/all-expenses/all-expenses.component.html
@@ -1,11 +1,11 @@
 @if (!!expenses?.length) {
   <table [dataSource]="expenses" class="mat-elevation-z8" mat-table multiTemplateDataRows>
     <ng-container matColumnDef="description">
-      <th *matHeaderCellDef mat-header-cell> Expense description</th>
+      <th *matHeaderCellDef mat-header-cell> Opis wydatku</th>
       <td *matCellDef="let expense" mat-cell> {{ expense.description }}</td>
     </ng-container>
     <ng-container matColumnDef="amount">
-      <th *matHeaderCellDef mat-header-cell> Expense amount</th>
+      <th *matHeaderCellDef mat-header-cell>Kwota</th>
       <td *matCellDef="let expense" mat-cell>
         <div [innerHTML]="printAmount(expense)"></div>
       </td>
@@ -17,15 +17,15 @@
       </td>
     </ng-container>
     <ng-container matColumnDef="currency">
-      <th *matHeaderCellDef mat-header-cell> Expense currency</th>
+      <th *matHeaderCellDef mat-header-cell>Waluta</th>
       <td *matCellDef="let expense" mat-cell> {{ expense.currency }}</td>
     </ng-container>
     <ng-container matColumnDef="date">
-      <th *matHeaderCellDef mat-header-cell> Expense date</th>
+      <th *matHeaderCellDef mat-header-cell>Data</th>
       <td *matCellDef="let expense" mat-cell> {{ expense.date | date:'medium':'':'pl' }}</td>
     </ng-container>
     <ng-container matColumnDef="actions">
-      <th *matHeaderCellDef mat-header-cell> Actions</th>
+      <th *matHeaderCellDef mat-header-cell>Akcje</th>
       <td *matCellDef="let expense" mat-cell>
         <mat-icon (click)="editExpense(expense)" class="pointer">edit</mat-icon>&nbsp;
         <mat-icon (click)="deleteExpense(expense)" class="pointer">delete</mat-icon>
diff --git a/src/main/frontend/src/app/component/group/add-group/add-group.component.html b/src/main/frontend/src/app/component/group/add-group/add-group.component.html
index 6c8e785..99e6b1d 100644
--- a/src/main/frontend/src/app/component/group/add-group/add-group.component.html
+++ b/src/main/frontend/src/app/component/group/add-group/add-group.component.html
@@ -45,7 +45,7 @@
                            aria-label="Name"
                            formControlName="name"
                            matInput
-                           placeholder="Type user name"
+                           placeholder="Nazwa użytkownika"
                            type="text">
                     <mat-autocomplete #auto="matAutocomplete" (optionSelected)="onOptionSelected($event, i)">
                       @for (user of users$ | async; track user) {
@@ -69,8 +69,8 @@
           </div>
         </div>
         <div class="button-container">
-          <button [disabled]="groupForm.invalid" color="primary" mat-raised-button type="submit">Save</button>
-          <button (click)="onCancel()" color="warning" mat-raised-button type="button">Cancel</button>
+          <button [disabled]="groupForm.invalid" color="primary" mat-raised-button type="submit">Zapisz</button>
+          <button (click)="onCancel()" color="warning" mat-raised-button type="button">Anuluj</button>
         </div>
       </form>
     </div>
diff --git a/src/main/frontend/src/app/component/user/all-users/all-users.component.html b/src/main/frontend/src/app/component/user/all-users/all-users.component.html
index cd44fef..df3cfb1 100644
--- a/src/main/frontend/src/app/component/user/all-users/all-users.component.html
+++ b/src/main/frontend/src/app/component/user/all-users/all-users.component.html
@@ -1,6 +1,6 @@
 <table mat-table [dataSource]="allUsers" class="mat-elevation-z8">
   <ng-container matColumnDef="name">
-    <th mat-header-cell *matHeaderCellDef> User name </th>
+    <th *matHeaderCellDef mat-header-cell> Nazwa użytkownika</th>
     <td mat-cell *matCellDef="let user"> {{user.name}} </td>
   </ng-container>
   <ng-container matColumnDef="mail">
@@ -8,11 +8,11 @@
     <td mat-cell *matCellDef="let user"> {{user.mail}} </td>
   </ng-container>
   <ng-container matColumnDef="password">
-    <th mat-header-cell *matHeaderCellDef> Password </th>
+    <th *matHeaderCellDef mat-header-cell> Hasło</th>
     <td mat-cell *matCellDef="let user"> {{user.password}} </td>
   </ng-container>
   <ng-container matColumnDef="actions">
-    <th mat-header-cell *matHeaderCellDef> Actions </th>
+    <th *matHeaderCellDef mat-header-cell> Akcje</th>
     <td mat-cell *matCellDef="let user">
       <mat-icon (click)="editUser(user.id)" class="pointer">edit</mat-icon>&nbsp;
       <mat-icon (click)="deleteUser(user)" class="pointer">delete</mat-icon>