diff --git a/src/app/modules/shows/list/filter/filter.component.html b/src/app/modules/shows/list/filter/filter.component.html
index 9adf8a5..9d4b545 100644
--- a/src/app/modules/shows/list/filter/filter.component.html
+++ b/src/app/modules/shows/list/filter/filter.component.html
@@ -16,7 +16,7 @@
     <mat-form-field appearance="outline">
       <mat-label>Ersteller</mat-label>
       <mat-select formControlName="owner">
-        <mat-option [value]="null">Alle</mat-option>
+        <mat-option value="">Alle</mat-option>
         @for (owner of owners; track owner) {
           <mat-option [value]="owner.key">{{
             owner.value
@@ -29,7 +29,7 @@
     <mat-form-field appearance="outline">
       <mat-label>Art der Veranstaltung</mat-label>
       <mat-select formControlName="showType">
-        <mat-option [value]="null">Alle</mat-option>
+        <mat-option value="">Alle</mat-option>
         <mat-optgroup label="öffentlich">
           @for (key of showTypePublic; track key) {
             <mat-option [value]="key">{{
diff --git a/src/app/modules/shows/list/filter/filter.component.ts b/src/app/modules/shows/list/filter/filter.component.ts
index cd834ad..72c9378 100644
--- a/src/app/modules/shows/list/filter/filter.component.ts
+++ b/src/app/modules/shows/list/filter/filter.component.ts
@@ -1,6 +1,5 @@
 import {Component, Input, inject} from '@angular/core';
 import {KeyValue} from '@angular/common';
-import {ActivatedRoute, Router} from '@angular/router';
 import {ReactiveFormsModule, UntypedFormBuilder, UntypedFormGroup} from '@angular/forms';
 import {FilterValues} from './filter-values';
 import {Show} from '../../services/show';
@@ -9,6 +8,7 @@ import {distinctUntilChanged, map, switchMap} from 'rxjs/operators';
 import {combineLatest, Observable, of} from 'rxjs';
 import {dynamicSort, onlyUnique} from '../../../../services/filter.helper';
 import {UserService} from '../../../../services/user/user.service';
+import {FilterStoreService} from '../../../../services/filter-store.service';
 import {MatFormField, MatLabel} from '@angular/material/form-field';
 import {MatSelect} from '@angular/material/select';
 import {MatOptgroup, MatOption} from '@angular/material/core';
@@ -21,11 +21,10 @@ import {ShowTypePipe} from '../../../../widget-modules/pipes/show-type-translate
   imports: [ReactiveFormsModule, MatFormField, MatLabel, MatSelect, MatOption, MatOptgroup, ShowTypePipe],
 })
 export class FilterComponent {
-  private router = inject(Router);
   private showService = inject(ShowService);
   private userService = inject(UserService);
+  private filterStore = inject(FilterStoreService);
 
-  @Input() public route = '/shows/';
   @Input() public shows: Show[] = [];
 
   public showTypePublic = ShowService.SHOW_TYPE_PUBLIC;
@@ -42,7 +41,6 @@ export class FilterComponent {
   public owners: {key: string; value: string}[] = [];
 
   public constructor() {
-    const activatedRoute = inject(ActivatedRoute);
     const fb = inject(UntypedFormBuilder);
 
     this.filterFormGroup = fb.group({
@@ -51,16 +49,20 @@ export class FilterComponent {
       showType: null,
     });
 
-    activatedRoute.queryParams.subscribe(params => {
-      const filterValues = params as FilterValues;
-      if (filterValues.time) this.filterFormGroup.controls.time.setValue(+filterValues.time);
-      this.filterFormGroup.controls.owner.setValue(filterValues.owner ?? null, {emitEvent: false});
-      this.filterFormGroup.controls.showType.setValue(filterValues.showType ?? null, {emitEvent: false});
+    this.filterStore.showFilter$.subscribe(filterValues => {
+      this.filterFormGroup.patchValue(
+        {
+          time: filterValues.time,
+          owner: filterValues.owner || null,
+          showType: filterValues.showType || null,
+        },
+        {emitEvent: false}
+      );
     });
 
-    this.filterFormGroup.controls.time.valueChanges.subscribe(_ => void this.filerValueChanged('time', _ as number));
-    this.filterFormGroup.controls.owner.valueChanges.subscribe(_ => void this.filerValueChanged('owner', _ as string));
-    this.filterFormGroup.controls.showType.valueChanges.subscribe(_ => void this.filerValueChanged('showType', _ as string));
+    this.filterFormGroup.controls.time.valueChanges.subscribe(_ => this.filterValueChanged('time', (_ as number) ?? 1));
+    this.filterFormGroup.controls.owner.valueChanges.subscribe(_ => this.filterValueChanged('owner', (_ as string | null) ?? ''));
+    this.filterFormGroup.controls.showType.valueChanges.subscribe(_ => this.filterValueChanged('showType', (_ as string | null) ?? ''));
 
     this.owners$().subscribe(owners => (this.owners = owners));
   }
@@ -97,12 +99,8 @@ export class FilterComponent {
     );
   };
 
-  private async filerValueChanged<T>(key: string, value: T): Promise<void> {
-    const route = this.router.createUrlTree([this.route], {
-      queryParams: {[key]: value || null},
-      queryParamsHandling: 'merge',
-    });
-    await this.router.navigateByUrl(route);
+  private filterValueChanged<T>(key: keyof FilterValues, value: T): void {
+    this.filterStore.updateShowFilter({[key]: value} as Partial<FilterValues>);
   }
 
   private sameOwners(left: {key: string; value: string}[], right: {key: string; value: string}[]): boolean {
diff --git a/src/app/modules/shows/list/list.component.ts b/src/app/modules/shows/list/list.component.ts
index 4950fe6..dcdcb95 100644
--- a/src/app/modules/shows/list/list.component.ts
+++ b/src/app/modules/shows/list/list.component.ts
@@ -3,9 +3,9 @@ import {combineLatest} from 'rxjs';
 import {Show} from '../services/show';
 import {fade} from '../../../animations';
 import {ShowService} from '../services/show.service';
-import {FilterValues} from './filter/filter-values';
-import {ActivatedRoute, RouterLink} from '@angular/router';
+import {FilterValues} from './filter/filter-values'import {RouterLink} from '@angular/router';
 import {map, switchMap} from 'rxjs/operators';
+import {FilterStoreService} from '../../../services/filter-store.service';
 import {RoleDirective} from '../../../services/user/role.directive';
 import {ListHeaderComponent} from '../../../widget-modules/components/list-header/list-header.component';
 import {AsyncPipe} from '@angular/common';
@@ -23,37 +23,20 @@ import {SortByPipe} from '../../../widget-modules/pipes/sort-by/sort-by.pipe';
 })
 export class ListComponent {
   private showService = inject(ShowService);
-  private activatedRoute = inject(ActivatedRoute);
+  private filterStore = inject(FilterStoreService);
 
-  public lastMonths$ = this.activatedRoute.queryParams.pipe(
-    map(params => {
-      const filterValues = params as FilterValues;
-      if (!filterValues?.time) return 1;
-      return +filterValues.time;
-    })
-  );
-  public owner$ = this.activatedRoute.queryParams.pipe(
-    map(params => {
-      const filterValues = params as FilterValues;
-      return filterValues?.owner;
-    })
-  );
-  public showType$ = this.activatedRoute.queryParams.pipe(
-    map(params => {
-      const filterValues = params as FilterValues;
-      return filterValues?.showType;
-    })
-  );
+  public filter$ = this.filterStore.showFilter$;
+  public lastMonths$ = this.filter$.pipe(map((filterValues: FilterValues) => filterValues.time || 1));
+  public owner$ = this.filter$.pipe(map((filterValues: FilterValues) => filterValues.owner));
+  public showType$ = this.filter$.pipe(map((filterValues: FilterValues) => filterValues.showType));
   public shows$ = this.showService.list$();
-  public privateShows$ = this.showService.list$().pipe(map(show => show.filter(_ => !_.published)));
+  public privateShows$ = combineLatest([this.shows$, this.filter$]).pipe(
+    map(([shows, filter]) => shows.filter(show => !show.published).filter(show => this.matchesPrivateFilter(show, filter)))
+  );
   public queriedPublicShows$ = this.lastMonths$.pipe(switchMap(lastMonths => this.showService.listPublicSince$(lastMonths)));
   public fallbackPublicShows$ = combineLatest([this.shows$, this.lastMonths$]).pipe(
     map(([shows, lastMonths]) => {
-      const startDate = new Date();
-      startDate.setHours(0, 0, 0, 0);
-      startDate.setDate(startDate.getDate() - lastMonths * 30);
-
-      return shows.filter(show => show.published && !show.archived && show.date.toDate() >= startDate);
+      return shows.filter(show => show.published && !show.archived).filter(show => this.matchesTimeFilter(show, lastMonths));
     })
   );
   public publicShows$ = combineLatest([this.queriedPublicShows$, this.fallbackPublicShows$, this.owner$, this.showType$]).pipe(
@@ -65,4 +48,19 @@ export class ListComponent {
   );
 
   public trackBy = (index: number, show: unknown) => (show as Show).id;
+
+  private matchesFilter(show: Show, filter: FilterValues): boolean {
+    return this.matchesTimeFilter(show, filter.time || 1) && (!filter.owner || show.owner === filter.owner) && (!filter.showType || show.showType === filter.showType);
+  }
+
+  private matchesPrivateFilter(show: Show, filter: FilterValues): boolean {
+    return this.matchesTimeFilter(show, filter.time || 1) && (!filter.showType || show.showType === filter.showType);
+  }
+
+  private matchesTimeFilter(show: Show, lastMonths: number): boolean {
+    const startDate = new Date();
+    startDate.setHours(0, 0, 0, 0);
+    startDate.setDate(startDate.getDate() - lastMonths * 30);
+    return show.date.toDate() >= startDate;
+  }
 }
diff --git a/src/app/modules/shows/services/show-data.service.ts b/src/app/modules/shows/services/show-data.service.ts
index 41787b7..58a61f5 100644
--- a/src/app/modules/shows/services/show-data.service.ts
+++ b/src/app/modules/shows/services/show-data.service.ts
@@ -24,12 +24,15 @@ export class ShowDataService {
   public listRaw$ = () => this.dbService.col$<Show>(this.collection);
 
   public listPublicSince$(lastMonths: number): Observable<Show[]> {
-    const startDate = new Date();
-    startDate.setHours(0, 0, 0, 0);
-    startDate.setDate(startDate.getDate() - lastMonths * 30);
-    const startTimestamp = Timestamp.fromDate(startDate);
+    const queryConstraints: QueryConstraint[] = [where('published', '==', true), orderBy('date', 'desc')];
 
-    const queryConstraints: QueryConstraint[] = [where('published', '==', true), where('date', '>=', startTimestamp), orderBy('date', 'desc')];
+    if (lastMonths < 99999) {
+      const startDate = new Date();
+      startDate.setHours(0, 0, 0, 0);
+      startDate.setDate(startDate.getDate() - lastMonths * 30);
+      const startTimestamp = Timestamp.fromDate(startDate);
+      queryConstraints.splice(1, 0, where('date', '>=', startTimestamp));
+    }
 
     return this.dbService.col$<Show>(this.collection, queryConstraints).pipe(
       map(shows => shows.filter(show => !show.archived)),
diff --git a/src/app/modules/songs/song-list/filter/filter.component.ts b/src/app/modules/songs/song-list/filter/filter.component.ts
index abdc6ba..94971ac 100644
--- a/src/app/modules/songs/song-list/filter/filter.component.ts
+++ b/src/app/modules/songs/song-list/filter/filter.component.ts
@@ -1,10 +1,10 @@
 import {Component, Input, inject} from '@angular/core';
-import {ActivatedRoute, Router} from '@angular/router';
 import {ReactiveFormsModule, UntypedFormBuilder, UntypedFormGroup} from '@angular/forms';
 import {SongService} from '../../services/song.service';
 import {FilterValues} from './filter-values';
 import {Song} from '../../services/song';
 import {KEYS} from '../../services/key.helper';
+import {FilterStoreService} from '../../../../services/filter-store.service';
 import {MatFormField, MatLabel} from '@angular/material/form-field';
 import {MatInput} from '@angular/material/input';
 import {MatSelect} from '@angular/material/select';
@@ -21,17 +21,15 @@ import {SongTypePipe} from '../../../../widget-modules/pipes/song-type-translate
   imports: [ReactiveFormsModule, MatFormField, MatLabel, MatInput, MatSelect, MatOption, LegalTypePipe, KeyPipe, SongTypePipe],
 })
 export class FilterComponent {
-  private router = inject(Router);
+  private filterStore = inject(FilterStoreService);
 
   public filterFormGroup: UntypedFormGroup;
-  @Input() public route = '/';
   @Input() public songs: Song[] = [];
   public types = SongService.TYPES;
   public legalType = SongService.LEGAL_TYPE;
   public keys = KEYS;
 
   public constructor() {
-    const activatedRoute = inject(ActivatedRoute);
     const fb = inject(UntypedFormBuilder);
 
     this.filterFormGroup = fb.group({
@@ -42,20 +40,15 @@ export class FilterComponent {
       flag: '',
     });
 
-    activatedRoute.queryParams.subscribe(params => {
-      const filterValues = params as FilterValues;
-      if (filterValues.q) this.filterFormGroup.controls.q.setValue(filterValues.q);
-      if (filterValues.type) this.filterFormGroup.controls.type.setValue(filterValues.type);
-      if (filterValues.key) this.filterFormGroup.controls.key.setValue(filterValues.key);
-      if (filterValues.legalType) this.filterFormGroup.controls.legalType.setValue(filterValues.legalType);
-      if (filterValues.flag) this.filterFormGroup.controls.flag.setValue(filterValues.flag);
+    this.filterStore.songFilter$.subscribe(filterValues => {
+      this.filterFormGroup.patchValue(filterValues, {emitEvent: false});
     });
 
-    this.filterFormGroup.controls.q.valueChanges.subscribe(_ => void this.filerValueChanged('q', _ as string));
-    this.filterFormGroup.controls.key.valueChanges.subscribe(_ => void this.filerValueChanged('key', _ as string));
-    this.filterFormGroup.controls.type.valueChanges.subscribe(_ => void this.filerValueChanged('type', _ as string));
-    this.filterFormGroup.controls.legalType.valueChanges.subscribe(_ => void this.filerValueChanged('legalType', _ as string));
-    this.filterFormGroup.controls.flag.valueChanges.subscribe(_ => void this.filerValueChanged('flag', _ as string));
+    this.filterFormGroup.controls.q.valueChanges.subscribe(_ => this.filterValueChanged('q', (_ as string) ?? ''));
+    this.filterFormGroup.controls.key.valueChanges.subscribe(_ => this.filterValueChanged('key', (_ as string) ?? ''));
+    this.filterFormGroup.controls.type.valueChanges.subscribe(_ => this.filterValueChanged('type', (_ as string) ?? ''));
+    this.filterFormGroup.controls.legalType.valueChanges.subscribe(_ => this.filterValueChanged('legalType', (_ as string) ?? ''));
+    this.filterFormGroup.controls.flag.valueChanges.subscribe(_ => this.filterValueChanged('flag', (_ as string) ?? ''));
   }
 
   public getFlags(): string[] {
@@ -69,11 +62,7 @@ export class FilterComponent {
     return flags.filter((n, i) => flags.indexOf(n) === i);
   }
 
-  private async filerValueChanged(key: string, value: string): Promise<void> {
-    const route = this.router.createUrlTree([this.route], {
-      queryParams: {[key]: value},
-      queryParamsHandling: 'merge',
-    });
-    await this.router.navigateByUrl(route);
+  private filterValueChanged(key: keyof FilterValues, value: string): void {
+    this.filterStore.updateSongFilter({[key]: value} as Partial<FilterValues>);
   }
 }
diff --git a/src/app/modules/songs/song-list/song-list.component.html b/src/app/modules/songs/song-list/song-list.component.html
index 5d34a00..3fdca8e 100644
--- a/src/app/modules/songs/song-list/song-list.component.html
+++ b/src/app/modules/songs/song-list/song-list.component.html
@@ -1,7 +1,7 @@
 @if (songs$ | async; as songs) {
   <div>
     <app-list-header [anyFilterActive]="anyFilterActive">
-      <app-filter [songs]="songs" route="songs"></app-filter>
+      <app-filter [songs]="songs"></app-filter>
     </app-list-header>
     <app-card [padding]="false">
       @for (song of songs; track trackBy($index, song)) {
diff --git a/src/app/modules/songs/song-list/song-list.component.ts b/src/app/modules/songs/song-list/song-list.component.ts
index f495d7e..a8e647d 100644
--- a/src/app/modules/songs/song-list/song-list.component.ts
+++ b/src/app/modules/songs/song-list/song-list.component.ts
@@ -4,12 +4,13 @@ import {Song} from '../services/song';
 import {map} from 'rxjs/operators';
 import {combineLatest, Observable} from 'rxjs';
 import {fade} from '../../../animations';
-import {ActivatedRoute, RouterLink} from '@angular/router';
+import {RouterLink} from '@angular/router';
 import {filterSong} from '../../../services/filter.helper';
 import {FilterValues} from './filter/filter-values';
 import {ScrollService} from '../../../services/scroll.service';
 import {faBalanceScaleRight, faCheck, faPencilRuler} from '@fortawesome/free-solid-svg-icons';
 import {TextRenderingService} from '../services/text-rendering.service';
+import {FilterStoreService} from '../../../services/filter-store.service';
 import {AsyncPipe} from '@angular/common';
 import {ListHeaderComponent} from '../../../widget-modules/components/list-header/list-header.component';
 import {FilterComponent} from './filter/filter.component';
@@ -31,13 +32,13 @@ interface SongListItem extends Song {
 })
 export class SongListComponent implements OnInit, OnDestroy {
   private songService = inject(SongService);
-  private activatedRoute = inject(ActivatedRoute);
   private scrollService = inject(ScrollService);
   private textRenderingService = inject(TextRenderingService);
+  private filterStore = inject(FilterStoreService);
 
   public anyFilterActive = false;
   public songs$: Observable<SongListItem[]> = combineLatest([
-    this.activatedRoute.queryParams.pipe(map(_ => _ as FilterValues)),
+    this.filterStore.songFilter$,
     this.songService.list$().pipe(map(songs => [...songs].sort((a, b) => a.number - b.number))),
   ]).pipe(
     map(([filter, songs]) => {
diff --git a/src/app/services/filter-store.service.ts b/src/app/services/filter-store.service.ts
new file mode 100644
index 0000000..c9bc707
--- /dev/null
+++ b/src/app/services/filter-store.service.ts
@@ -0,0 +1,51 @@
+import {Injectable} from '@angular/core';
+import {BehaviorSubject, Observable} from 'rxjs';
+import {FilterValues as SongFilterValues} from '../modules/songs/song-list/filter/filter-values';
+import {FilterValues as ShowFilterValues} from '../modules/shows/list/filter/filter-values';
+
+const DEFAULT_SONG_FILTER: SongFilterValues = {
+  q: '',
+  type: '',
+  key: '',
+  legalType: '',
+  flag: '',
+};
+
+const DEFAULT_SHOW_FILTER: ShowFilterValues = {
+  time: 1,
+  owner: '',
+  showType: '',
+};
+
+@Injectable({
+  providedIn: 'root',
+})
+export class FilterStoreService {
+  private readonly songFilterSubject = new BehaviorSubject<SongFilterValues>(DEFAULT_SONG_FILTER);
+  private readonly showFilterSubject = new BehaviorSubject<ShowFilterValues>(DEFAULT_SHOW_FILTER);
+
+  public readonly songFilter$: Observable<SongFilterValues> = this.songFilterSubject.asObservable();
+  public readonly showFilter$: Observable<ShowFilterValues> = this.showFilterSubject.asObservable();
+
+  public updateSongFilter(filter: Partial<SongFilterValues>): void {
+    this.songFilterSubject.next({
+      ...this.songFilterSubject.value,
+      ...filter,
+    });
+  }
+
+  public updateShowFilter(filter: Partial<ShowFilterValues>): void {
+    this.showFilterSubject.next({
+      ...this.showFilterSubject.value,
+      ...filter,
+    });
+  }
+
+  public resetSongFilter(): void {
+    this.songFilterSubject.next(DEFAULT_SONG_FILTER);
+  }
+
+  public resetShowFilter(): void {
+    this.showFilterSubject.next(DEFAULT_SHOW_FILTER);
+  }
+}