diff --git a/website/src/lib/assets/layers.ts b/website/src/lib/assets/layers.ts
index 98780282..ffc6f2bc 100644
--- a/website/src/lib/assets/layers.ts
+++ b/website/src/lib/assets/layers.ts
@@ -266,12 +266,15 @@ export const basemaps: { [key: string]: string | Style; } = {
     },
 };
 
-Object.values(basemaps).forEach((basemap) => {
+export function extendBasemap(basemap: string | Style): string | Style {
     if (typeof basemap === 'object') {
         basemap["glyphs"] = "mapbox://fonts/mapbox/{fontstack}/{range}.pbf";
         basemap["sprite"] = `https://api.mapbox.com/styles/v1/mapbox/outdoors-v12/sprite?access_token=${mapboxAccessToken}`;
     }
-});
+    return basemap;
+}
+
+Object.values(basemaps).forEach(extendBasemap);
 
 export const font: { [key: string]: string; } = {
     swisstopo: 'Frutiger Neue Condensed Regular',
@@ -678,6 +681,16 @@ export const defaultOverlayTree: LayerTreeType = {
     }
 }
 
+export type CustomLayer = {
+    id: string,
+    name: string,
+    tileUrls: string[],
+    maxZoom: number,
+    layerType: 'basemap' | 'overlay',
+    resourceType: 'raster' | 'vector',
+    value: string | {},
+};
+
 export const stravaHeatmapServers = ['https://heatmap-external-a.strava.com/tiles-auth', 'https://heatmap-external-b.strava.com/tiles-auth', 'https://heatmap-external-c.strava.com/tiles-auth'];
 export const stravaHeatmapActivityIds: { [key: string]: string } = {
     stravaHeatmapRun: 'sport_Run',
diff --git a/website/src/lib/components/Menu.svelte b/website/src/lib/components/Menu.svelte
index 2fe77239..3b19207a 100644
--- a/website/src/lib/components/Menu.svelte
+++ b/website/src/lib/components/Menu.svelte
@@ -395,8 +395,10 @@
 			cutSelection();
 			e.preventDefault();
 		} else if (e.key === 'v' && (e.metaKey || e.ctrlKey)) {
-			pasteSelection();
-			e.preventDefault();
+			if (e.target.tagName !== 'INPUT' && e.target.tagName !== 'TEXTAREA') {
+				pasteSelection();
+				e.preventDefault();
+			}
 		} else if ((e.key === 's' || e.key == 'S') && (e.metaKey || e.ctrlKey)) {
 			if (e.shiftKey) {
 				exportAllFiles();
diff --git a/website/src/lib/components/layer-control/CustomLayers.svelte b/website/src/lib/components/layer-control/CustomLayers.svelte
new file mode 100644
index 00000000..846f3194
--- /dev/null
+++ b/website/src/lib/components/layer-control/CustomLayers.svelte
@@ -0,0 +1,264 @@
+<script lang="ts">
+	import * as Card from '$lib/components/ui/card';
+	import { Input } from '$lib/components/ui/input';
+	import { Label } from '$lib/components/ui/label';
+	import { Button } from '$lib/components/ui/button';
+	import * as RadioGroup from '$lib/components/ui/radio-group';
+	import { CirclePlus, CircleX, Minus, Pencil, Plus, Save, Trash2 } from 'lucide-svelte';
+	import { _ } from 'svelte-i18n';
+	import { settings } from '$lib/db';
+	import { defaultBasemap, extendBasemap, type CustomLayer } from '$lib/assets/layers';
+	import { map } from '$lib/stores';
+
+	const {
+		customLayers,
+		selectedBasemapTree,
+		selectedOverlayTree,
+		currentBasemap,
+		previousBasemap,
+		currentOverlays,
+		previousOverlays
+	} = settings;
+
+	let name: string = '';
+	let tileUrls: string[] = [''];
+	let maxZoom: number = 20;
+	let layerType: 'basemap' | 'overlay' = 'basemap';
+	let resourceType: 'raster' | 'vector' = 'raster';
+
+	$: if (tileUrls[0].length > 0) {
+		if (tileUrls[0].includes('.json')) {
+			resourceType = 'vector';
+			layerType = 'basemap';
+		} else {
+			resourceType = 'raster';
+		}
+	}
+
+	function createLayer() {
+		let layerId = selectedLayerId ?? getLayerId();
+		let layer: CustomLayer = {
+			id: layerId,
+			name: name,
+			tileUrls: tileUrls,
+			maxZoom: maxZoom,
+			layerType: layerType,
+			resourceType: resourceType,
+			value: ''
+		};
+
+		if (resourceType === 'vector') {
+			layer.value = tileUrls[0];
+		} else {
+			if (layerType === 'basemap') {
+				layer.value = extendBasemap({
+					version: 8,
+					sources: {
+						[layerId]: {
+							type: 'raster',
+							tiles: tileUrls,
+							maxzoom: maxZoom
+						}
+					},
+					layers: [
+						{
+							id: layerId,
+							type: 'raster',
+							source: layerId
+						}
+					]
+				});
+			} else {
+				layer.value = {
+					type: 'raster',
+					tiles: tileUrls,
+					maxzoom: maxZoom
+				};
+			}
+		}
+		$customLayers[layerId] = layer;
+		addLayer(layerId);
+		selectedLayerId = undefined;
+		setDataFromSelectedLayer();
+	}
+
+	function getLayerId() {
+		for (let id = 0; ; id++) {
+			if (!$customLayers.hasOwnProperty(`custom-${id}`)) {
+				return `custom-${id}`;
+			}
+		}
+	}
+
+	function addLayer(layerId: string) {
+		if (layerType === 'basemap') {
+			if (!$selectedBasemapTree.basemaps.hasOwnProperty('custom')) {
+				$selectedBasemapTree.basemaps['custom'] = {};
+			}
+			$selectedBasemapTree.basemaps['custom'][layerId] = true;
+		} else {
+			if (!$selectedOverlayTree.overlays.hasOwnProperty('custom')) {
+				$selectedOverlayTree.overlays['custom'] = {};
+			}
+			$selectedOverlayTree.overlays['custom'][layerId] = true;
+		}
+	}
+
+	function tryDeleteLayer(node: any, id: string): any {
+		if (node.hasOwnProperty(id)) {
+			delete node[id];
+		}
+		return node;
+	}
+
+	function deleteLayer(layerId: string) {
+		let layer = $customLayers[layerId];
+		if (layer.layerType === 'basemap') {
+			if (layerId === $currentBasemap) {
+				$currentBasemap = defaultBasemap;
+			}
+			if (layerId === $previousBasemap) {
+				$previousBasemap = defaultBasemap;
+			}
+
+			$selectedBasemapTree.basemaps['custom'] = tryDeleteLayer(
+				$selectedBasemapTree.basemaps['custom'],
+				layerId
+			);
+			if (Object.keys($selectedBasemapTree.basemaps['custom']).length === 0) {
+				$selectedBasemapTree.basemaps = tryDeleteLayer($selectedBasemapTree.basemaps, 'custom');
+			}
+		} else {
+			$currentOverlays = tryDeleteLayer($currentOverlays, layerId);
+			$previousOverlays = tryDeleteLayer($previousOverlays, layerId);
+
+			$selectedOverlayTree.overlays['custom'] = tryDeleteLayer(
+				$selectedOverlayTree.overlays['custom'],
+				layerId
+			);
+			if (Object.keys($selectedOverlayTree.overlays['custom']).length === 0) {
+				$selectedOverlayTree.overlays = tryDeleteLayer($selectedOverlayTree.overlays, 'custom');
+			}
+
+			if ($map) {
+				if ($map.getLayer(layerId)) {
+					$map.removeLayer(layerId);
+				}
+				if ($map.getSource(layerId)) {
+					$map.removeSource(layerId);
+				}
+			}
+		}
+		$customLayers = tryDeleteLayer($customLayers, layerId);
+	}
+
+	let selectedLayerId: string | undefined = undefined;
+
+	function setDataFromSelectedLayer() {
+		if (selectedLayerId) {
+			const layer = $customLayers[selectedLayerId];
+			name = layer.name;
+			tileUrls = layer.tileUrls;
+			maxZoom = layer.maxZoom;
+			layerType = layer.layerType;
+			resourceType = layer.resourceType;
+		} else {
+			name = '';
+			tileUrls = [''];
+			maxZoom = 20;
+			layerType = 'basemap';
+			resourceType = 'raster';
+		}
+	}
+
+	$: selectedLayerId, setDataFromSelectedLayer();
+</script>
+
+{#if Object.keys($customLayers).length > 0}
+	<div class="flex flex-col gap-1 mb-3">
+		{#each Object.entries($customLayers) as [id, layer] (id)}
+			<div class="flex flex-row items-center gap-2">
+				<span class="grow">{layer.name}</span>
+				<Button variant="outline" on:click={() => (selectedLayerId = id)} class="p-1 h-8">
+					<Pencil size="16" />
+				</Button>
+				<Button variant="outline" on:click={() => deleteLayer(id)} class="p-1 h-8">
+					<Trash2 size="16" />
+				</Button>
+			</div>
+		{/each}
+	</div>
+{/if}
+
+<Card.Root>
+	<Card.Header class="p-3">
+		<Card.Title class="text-base">
+			{#if selectedLayerId}
+				{$_('layers.custom_layers.edit')}
+			{:else}
+				{$_('layers.custom_layers.new')}
+			{/if}
+		</Card.Title>
+	</Card.Header>
+	<Card.Content class="p-3 pt-0">
+		<fieldset class="flex flex-col gap-2">
+			<Label for="name">{$_('menu.metadata.name')}</Label>
+			<Input bind:value={name} id="name" class="h-8" />
+			<Label for="url">{$_('layers.custom_layers.urls')}</Label>
+			{#each tileUrls as url, i}
+				<div class="flex flex-row gap-2">
+					<Input bind:value={tileUrls[i]} id="url" class="h-8" />
+					{#if tileUrls.length > 1}
+						<Button
+							on:click={() => (tileUrls = tileUrls.filter((_, index) => index !== i))}
+							variant="outline"
+							class="p-1 h-8"
+						>
+							<Minus size="16" />
+						</Button>
+					{/if}
+					{#if i === tileUrls.length - 1}
+						<Button
+							on:click={() => (tileUrls = [...tileUrls, ''])}
+							variant="outline"
+							class="p-1 h-8"
+						>
+							<Plus size="16" />
+						</Button>
+					{/if}
+				</div>
+			{/each}
+			{#if resourceType === 'raster'}
+				<Label for="maxZoom">{$_('layers.custom_layers.max_zoom')}</Label>
+				<Input type="number" bind:value={maxZoom} id="maxZoom" min={0} max={22} class="h-8" />
+			{/if}
+			<Label>{$_('layers.custom_layers.layer_type')}</Label>
+			<RadioGroup.Root bind:value={layerType} class="flex flex-row">
+				<div class="flex items-center space-x-2">
+					<RadioGroup.Item value="basemap" id="basemap" />
+					<Label for="basemap">{$_('layers.custom_layers.basemap')}</Label>
+				</div>
+				<div class="flex items-center space-x-2">
+					<RadioGroup.Item value="overlay" id="overlay" disabled={resourceType === 'vector'} />
+					<Label for="overlay">{$_('layers.custom_layers.overlay')}</Label>
+				</div>
+			</RadioGroup.Root>
+			{#if selectedLayerId}
+				<div class="mt-2 flex flex-row gap-2">
+					<Button variant="outline" on:click={createLayer} class="grow">
+						<Save size="16" class="mr-1" />
+						{$_('layers.custom_layers.update')}
+					</Button>
+					<Button variant="outline" on:click={() => (selectedLayerId = undefined)}>
+						<CircleX size="16" />
+					</Button>
+				</div>
+			{:else}
+				<Button variant="outline" class="mt-2" on:click={createLayer}>
+					<CirclePlus size="16" class="mr-1" />
+					{$_('layers.custom_layers.create')}
+				</Button>
+			{/if}
+		</fieldset>
+	</Card.Content>
+</Card.Root>
diff --git a/website/src/lib/components/layer-control/LayerControl.svelte b/website/src/lib/components/layer-control/LayerControl.svelte
index 3d041eac..e9210331 100644
--- a/website/src/lib/components/layer-control/LayerControl.svelte
+++ b/website/src/lib/components/layer-control/LayerControl.svelte
@@ -18,12 +18,16 @@
 		previousBasemap,
 		currentOverlays,
 		selectedBasemapTree,
-		selectedOverlayTree
+		selectedOverlayTree,
+		customLayers
 	} = settings;
 
 	$: if ($map) {
 		// Set style depending on the current basemap
-		$map.setStyle(basemaps[$currentBasemap], {
+		let basemap = basemaps.hasOwnProperty($currentBasemap)
+			? basemaps[$currentBasemap]
+			: $customLayers[$currentBasemap].value;
+		$map.setStyle(basemap, {
 			diff: false
 		});
 	}
@@ -65,17 +69,18 @@
 		return () => {
 			if ($map) {
 				try {
+					let overlay = $customLayers.hasOwnProperty(id) ? $customLayers[id].value : overlays[id];
 					if (!$map.getSource(id)) {
-						$map.addSource(id, overlays[id]);
+						$map.addSource(id, overlay);
 					}
 					$map.addLayer(
 						{
 							id,
-							type: overlays[id].type === 'raster' ? 'raster' : 'line',
+							type: overlay.type === 'raster' ? 'raster' : 'line',
 							source: id,
 							paint: {
 								...(id in opacities
-									? overlays[id].type === 'raster'
+									? overlay.type === 'raster'
 										? { 'raster-opacity': opacities[id] }
 										: { 'line-opacity': opacities[id] }
 									: {})
diff --git a/website/src/lib/components/layer-control/LayerControlSettings.svelte b/website/src/lib/components/layer-control/LayerControlSettings.svelte
index e15f338a..417886b9 100644
--- a/website/src/lib/components/layer-control/LayerControlSettings.svelte
+++ b/website/src/lib/components/layer-control/LayerControlSettings.svelte
@@ -15,6 +15,7 @@
 	import { writable, get } from 'svelte/store';
 	import { map, setStravaHeatmapURLs } from '$lib/stores';
 	import { browser } from '$app/environment';
+	import CustomLayers from './CustomLayers.svelte';
 
 	const { selectedBasemapTree, selectedOverlayTree, stravaHeatmapColor, currentOverlays } =
 		settings;
@@ -111,9 +112,11 @@
 					</Accordion.Content>
 				</Accordion.Item>
 				<Accordion.Item value="item-2">
-					<Accordion.Trigger>{$_('layers.custom_layers')}</Accordion.Trigger>
+					<Accordion.Trigger>{$_('layers.custom_layers.title')}</Accordion.Trigger>
 					<Accordion.Content>
-						<ScrollArea></ScrollArea>
+						<ScrollArea>
+							<CustomLayers />
+						</ScrollArea>
 					</Accordion.Content>
 				</Accordion.Item>
 				<Accordion.Item value="item-3">
diff --git a/website/src/lib/components/layer-control/LayerTreeNode.svelte b/website/src/lib/components/layer-control/LayerTreeNode.svelte
index a980a0fa..5f3d84db 100644
--- a/website/src/lib/components/layer-control/LayerTreeNode.svelte
+++ b/website/src/lib/components/layer-control/LayerTreeNode.svelte
@@ -7,6 +7,7 @@
 	import { anySelectedLayer } from './utils';
 
 	import { _ } from 'svelte-i18n';
+	import { settings } from '$lib/db';
 
 	export let name: string;
 	export let node: LayerTreeType;
@@ -15,15 +16,19 @@
 
 	export let checked: LayerTreeType;
 
-	Object.keys(node).forEach((id) => {
-		if (!checked.hasOwnProperty(id)) {
-			if (typeof node[id] == 'boolean') {
-				checked[id] = false;
-			} else {
-				checked[id] = {};
+	const { customLayers } = settings;
+
+	$: if (checked !== undefined) {
+		Object.keys(node).forEach((id) => {
+			if (!checked.hasOwnProperty(id)) {
+				if (typeof node[id] == 'boolean') {
+					checked[id] = false;
+				} else {
+					checked[id] = {};
+				}
 			}
-		}
-	});
+		});
+	}
 </script>
 
 <div class="flex flex-col gap-[3px]">
@@ -42,9 +47,13 @@
 					{:else}
 						<input id="{name}-{id}" type="radio" {name} value={id} bind:group={selected} />
 					{/if}
-					<Label for="{name}-{id}" class="flex flex-row items-center gap-1"
-						>{$_(`layers.label.${id}`)}</Label
-					>
+					<Label for="{name}-{id}" class="flex flex-row items-center gap-1">
+						{#if $customLayers.hasOwnProperty(id)}
+							{$customLayers[id].name}
+						{:else}
+							{$_(`layers.label.${id}`)}
+						{/if}
+					</Label>
 				</div>
 			{/if}
 		{:else if anySelectedLayer(node[id])}
diff --git a/website/src/lib/db.ts b/website/src/lib/db.ts
index c2ea20d5..e80b0cb1 100644
--- a/website/src/lib/db.ts
+++ b/website/src/lib/db.ts
@@ -4,7 +4,7 @@ import { enableMapSet, enablePatches, applyPatches, type Patch, type WritableDra
 import { writable, get, derived, type Readable, type Writable } from 'svelte/store';
 import { gpxStatistics, initTargetMapBounds, splitAs, updateTargetMapBounds } from './stores';
 import { mode } from 'mode-watcher';
-import { defaultBasemap, defaultBasemapTree, defaultOverlayTree, defaultOverlays } from './assets/layers';
+import { defaultBasemap, defaultBasemapTree, defaultOverlayTree, defaultOverlays, type CustomLayer } from './assets/layers';
 import { applyToOrderedItemsFromFile, applyToOrderedSelectedItemsFromFile, selection } from '$lib/components/file-list/Selection';
 import { ListFileItem, ListItem, ListTrackItem, ListLevel, ListTrackSegmentItem, ListWaypointItem, ListRootItem } from '$lib/components/file-list/FileList';
 import { updateAnchorPoints } from '$lib/components/toolbar/tools/routing/Simplify';
@@ -48,13 +48,13 @@ function dexieSettingStore<T>(setting: string, initial: T): Writable<T> {
     return {
         subscribe: store.subscribe,
         set: (value: any) => {
-            if (value !== get(store)) {
+            if (typeof value === 'object' || value !== get(store)) {
                 db.settings.put(value, setting);
             }
         },
         update: (callback: (value: any) => any) => {
             let newValue = callback(get(store));
-            if (newValue !== get(store)) {
+            if (typeof newValue === 'object' || newValue !== get(store)) {
                 db.settings.put(newValue, setting);
             }
         }
@@ -104,6 +104,7 @@ export const settings = {
     currentOverlays: dexieUninitializedSettingStore('currentOverlays', defaultOverlays),
     previousOverlays: dexieSettingStore('previousOverlays', defaultOverlays),
     selectedOverlayTree: dexieSettingStore('selectedOverlayTree', defaultOverlayTree),
+    customLayers: dexieSettingStore<Record<string, CustomLayer>>('customLayers', {}),
     directionMarkers: dexieSettingStore('directionMarkers', false),
     distanceMarkers: dexieSettingStore('distanceMarkers', false),
     stravaHeatmapColor: dexieSettingStore('stravaHeatmapColor', 'bluered'),
diff --git a/website/src/locales/en.json b/website/src/locales/en.json
index 8511c616..bb39b0d4 100644
--- a/website/src/locales/en.json
+++ b/website/src/locales/en.json
@@ -198,12 +198,24 @@
         "settings": "Layer settings",
         "settings_help": "Select the map layers you want to show in the interface, add custom ones, and adjust their settings.",
         "selection": "Layer selection",
-        "custom_layers": "Custom layers",
+        "custom_layers": {
+            "title": "Custom layers",
+            "new": "New custom layer",
+            "edit": "Edit custom layer",
+            "urls": "URL(s)",
+            "max_zoom": "Max zoom",
+            "layer_type": "Layer type",
+            "basemap": "Basemap",
+            "overlay": "Overlay",
+            "create": "Create layer",
+            "update": "Update layer"
+        },
         "heatmap": "Strava Heatmap",
         "pois": "Points of interest",
         "label": {
             "basemaps": "Basemaps",
             "overlays": "Overlays",
+            "custom": "Custom",
             "world": "World",
             "countries": "Countries",
             "belgium": "Belgium",