diff --git a/src/App.tsx b/src/App.tsx
index 3ba8213..ad94efb 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -2,6 +2,7 @@ import { useEffect, useState } from "react";
 import { LaunchWindow } from "./components/launch/LaunchWindow";
 import { SourceSelector } from "./components/launch/SourceSelector";
 import VideoEditor from "./components/video-editor/VideoEditor";
+import { loadAllCustomFonts } from "./lib/customFonts";
 
 export default function App() {
   const [windowType, setWindowType] = useState('');
@@ -15,6 +16,11 @@ export default function App() {
       document.documentElement.style.background = 'transparent';
       document.getElementById('root')?.style.setProperty('background', 'transparent');
     }
+
+    // Load custom fonts on app initialization
+    loadAllCustomFonts().catch((error) => {
+      console.error('Failed to load custom fonts:', error);
+    });
   }, []);
 
   switch (windowType) {
diff --git a/src/components/ui/dialog.tsx b/src/components/ui/dialog.tsx
index 9dbeaa0..213f877 100644
--- a/src/components/ui/dialog.tsx
+++ b/src/components/ui/dialog.tsx
@@ -19,7 +19,7 @@ const DialogOverlay = React.forwardRef<
   <DialogPrimitive.Overlay
     ref={ref}
     className={cn(
-      "fixed inset-0 z-50 bg-black/80  data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0",
+      "fixed inset-0 z-[9999] bg-black/80  data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0",
       className
     )}
     {...props}
@@ -36,7 +36,7 @@ const DialogContent = React.forwardRef<
     <DialogPrimitive.Content
       ref={ref}
       className={cn(
-        "fixed left-[50%] top-[50%] z-50 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg",
+        "fixed left-[50%] top-[50%] z-[10000] grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg",
         className
       )}
       {...props}
diff --git a/src/components/ui/input.tsx b/src/components/ui/input.tsx
new file mode 100644
index 0000000..1095513
--- /dev/null
+++ b/src/components/ui/input.tsx
@@ -0,0 +1,24 @@
+import * as React from "react"
+import { cn } from "@/lib/utils"
+
+export interface InputProps
+  extends React.InputHTMLAttributes<HTMLInputElement> {}
+
+const Input = React.forwardRef<HTMLInputElement, InputProps>(
+  ({ className, type, ...props }, ref) => {
+    return (
+      <input
+        type={type}
+        className={cn(
+          "flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background file:border-0 file:bg-transparent file:text-sm file:font-medium placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50",
+          className
+        )}
+        ref={ref}
+        {...props}
+      />
+    )
+  }
+)
+Input.displayName = "Input"
+
+export { Input }
diff --git a/src/components/ui/label.tsx b/src/components/ui/label.tsx
new file mode 100644
index 0000000..f918cb2
--- /dev/null
+++ b/src/components/ui/label.tsx
@@ -0,0 +1,23 @@
+import * as React from "react"
+import { cn } from "@/lib/utils"
+
+export interface LabelProps
+  extends React.LabelHTMLAttributes<HTMLLabelElement> {}
+
+const Label = React.forwardRef<HTMLLabelElement, LabelProps>(
+  ({ className, ...props }, ref) => {
+    return (
+      <label
+        ref={ref}
+        className={cn(
+          "text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70",
+          className
+        )}
+        {...props}
+      />
+    )
+  }
+)
+Label.displayName = "Label"
+
+export { Label }
diff --git a/src/components/video-editor/AddCustomFontDialog.tsx b/src/components/video-editor/AddCustomFontDialog.tsx
new file mode 100644
index 0000000..64987b5
--- /dev/null
+++ b/src/components/video-editor/AddCustomFontDialog.tsx
@@ -0,0 +1,181 @@
+import { useState } from 'react';
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+  DialogTrigger,
+} from '@/components/ui/dialog';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { Plus } from 'lucide-react';
+import { toast } from 'sonner';
+import {
+  addCustomFont,
+  generateFontId,
+  parseFontFamilyFromImport,
+  isValidGoogleFontsUrl,
+  type CustomFont,
+} from '@/lib/customFonts';
+
+interface AddCustomFontDialogProps {
+  onFontAdded?: (font: CustomFont) => void;
+}
+
+export function AddCustomFontDialog({ onFontAdded }: AddCustomFontDialogProps) {
+  const [open, setOpen] = useState(false);
+  const [importUrl, setImportUrl] = useState('');
+  const [fontName, setFontName] = useState('');
+  const [loading, setLoading] = useState(false);
+
+  const handleImportUrlChange = (url: string) => {
+    setImportUrl(url);
+
+    // Auto-extract font name if valid Google Fonts URL
+    if (isValidGoogleFontsUrl(url)) {
+      const extracted = parseFontFamilyFromImport(url);
+      if (extracted && !fontName) {
+        setFontName(extracted);
+      }
+    }
+  };
+
+  const handleAdd = async () => {
+    // Validate inputs
+    if (!importUrl.trim()) {
+      toast.error('Please enter a Google Fonts import URL');
+      return;
+    }
+
+    if (!isValidGoogleFontsUrl(importUrl)) {
+      toast.error('Please enter a valid Google Fonts URL');
+      return;
+    }
+
+    if (!fontName.trim()) {
+      toast.error('Please enter a font name');
+      return;
+    }
+
+    setLoading(true);
+
+    try {
+      // Extract font family from URL
+      const fontFamily = parseFontFamilyFromImport(importUrl);
+      if (!fontFamily) {
+        toast.error('Could not extract font family from URL');
+        setLoading(false);
+        return;
+      }
+
+      // Create custom font object
+      const newFont: CustomFont = {
+        id: generateFontId(fontName),
+        name: fontName.trim(),
+        fontFamily: fontFamily,
+        importUrl: importUrl.trim(),
+      };
+
+      // Add font (this will load and verify it) - throws if it fails
+      await addCustomFont(newFont);
+
+      // Notify parent
+      if (onFontAdded) {
+        onFontAdded(newFont);
+      }
+
+      toast.success(`Font "${fontName}" added successfully`);
+
+      // Reset and close
+      setImportUrl('');
+      setFontName('');
+      setOpen(false);
+    } catch (error) {
+      console.error('Failed to add custom font:', error);
+      const errorMessage = error instanceof Error ? error.message : 'Failed to load font';
+      toast.error('Failed to add font', {
+        description: errorMessage.includes('timeout')
+          ? 'Font took too long to load. Please check the URL and try again.'
+          : 'The font could not be loaded. Please verify the Google Fonts URL is correct.',
+      });
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <Dialog open={open} onOpenChange={setOpen}>
+      <DialogTrigger asChild>
+        <Button
+          variant="outline"
+          size="sm"
+          className="w-full bg-white/5 border-white/10 text-slate-200 hover:bg-white/10 h-9 text-xs"
+        >
+          <Plus className="w-3 h-3 mr-1" />
+          Add Google Font
+        </Button>
+      </DialogTrigger>
+      <DialogContent className="bg-[#1a1a1c] border-white/10 text-slate-200">
+        <DialogHeader>
+          <DialogTitle>Add Google Font</DialogTitle>
+          <DialogDescription className="text-slate-400">
+            Add a custom font from Google Fonts to use in your annotations.
+          </DialogDescription>
+        </DialogHeader>
+
+        <div className="space-y-4 mt-4">
+          <div className="space-y-2">
+            <Label htmlFor="import-url" className="text-slate-200">
+              Google Fonts Import URL
+            </Label>
+            <Input
+              id="import-url"
+              placeholder="https://fonts.googleapis.com/css2?family=Roboto&display=swap"
+              value={importUrl}
+              onChange={(e) => handleImportUrlChange(e.target.value)}
+              className="bg-white/5 border-white/10 text-slate-200"
+            />
+            <p className="text-xs text-slate-400">
+              Get this from Google Fonts: Select a font → Click "Get font" → Copy the @import URL
+            </p>
+          </div>
+
+          <div className="space-y-2">
+            <Label htmlFor="font-name" className="text-slate-200">
+              Display Name
+            </Label>
+            <Input
+              id="font-name"
+              placeholder="My Custom Font"
+              value={fontName}
+              onChange={(e) => setFontName(e.target.value)}
+              className="bg-white/5 border-white/10 text-slate-200"
+            />
+            <p className="text-xs text-slate-400">
+              This is how the font will appear in the font selector
+            </p>
+          </div>
+
+          <div className="flex justify-end gap-2 mt-6">
+            <Button
+              variant="outline"
+              onClick={() => setOpen(false)}
+              className="bg-white/5 border-white/10 text-slate-200 hover:bg-white/10"
+            >
+              Cancel
+            </Button>
+            <Button
+              onClick={handleAdd}
+              disabled={loading}
+              className="bg-blue-600 hover:bg-blue-700 text-white"
+            >
+              {loading ? 'Adding...' : 'Add Font'}
+            </Button>
+          </div>
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}
diff --git a/src/components/video-editor/AnnotationSettingsPanel.tsx b/src/components/video-editor/AnnotationSettingsPanel.tsx
index 2e2999a..c89589f 100644
--- a/src/components/video-editor/AnnotationSettingsPanel.tsx
+++ b/src/components/video-editor/AnnotationSettingsPanel.tsx
@@ -1,4 +1,4 @@
-import {useRef } from "react";
+import { useRef, useState, useEffect } from "react";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Button } from "@/components/ui/button";
 import { Trash2, Type, Image as ImageIcon, Upload, Bold, Italic, Underline, AlignLeft, AlignCenter, AlignRight, ChevronDown, Info } from "lucide-react";
@@ -11,6 +11,8 @@ import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group";
 import { Slider } from "@/components/ui/slider";
 import { cn } from "@/lib/utils";
 import { getArrowComponent } from "./ArrowSvgs";
+import { AddCustomFontDialog } from "./AddCustomFontDialog";
+import { getCustomFonts, type CustomFont } from "@/lib/customFonts";
 
 interface AnnotationSettingsPanelProps {
   annotation: AnnotationRegion;
@@ -43,6 +45,13 @@ export function AnnotationSettingsPanel({
   onDelete,
 }: AnnotationSettingsPanelProps) {
   const fileInputRef = useRef<HTMLInputElement>(null);
+  const [customFonts, setCustomFonts] = useState<CustomFont[]>([]);
+
+  // Load custom fonts on mount
+  useEffect(() => {
+    setCustomFonts(getCustomFonts());
+  }, []);
+
   const colorPalette = [
     '#FF0000', // Red
     '#FFD700', // Yellow/Gold
@@ -148,19 +157,35 @@ export function AnnotationSettingsPanel({
               <div className="grid grid-cols-2 gap-2">
                 <div>
                   <label className="text-xs font-medium text-slate-200 mb-2 block">Font Style</label>
-                  <Select 
-                    value={annotation.style.fontFamily} 
+                  <Select
+                    value={annotation.style.fontFamily}
                     onValueChange={(value) => onStyleChange({ fontFamily: value })}
                   >
                     <SelectTrigger className="w-full bg-white/5 border-white/10 text-slate-200 h-9 text-xs">
                       <SelectValue placeholder="Select style" />
                     </SelectTrigger>
-                    <SelectContent className="bg-[#1a1a1c] border-white/10 text-slate-200">
+                    <SelectContent className="bg-[#1a1a1c] border-white/10 text-slate-200 max-h-[300px]">
                       {FONT_FAMILIES.map((font) => (
                         <SelectItem key={font.value} value={font.value} style={{ fontFamily: font.value }}>
                           {font.label}
                         </SelectItem>
                       ))}
+                      {customFonts.length > 0 && (
+                        <>
+                          <div className="px-2 py-1.5 text-[10px] font-medium text-slate-400 uppercase tracking-wider">
+                            Custom Fonts
+                          </div>
+                          {customFonts.map((font) => (
+                            <SelectItem
+                              key={font.id}
+                              value={font.fontFamily}
+                              style={{ fontFamily: font.fontFamily }}
+                            >
+                              {font.name}
+                            </SelectItem>
+                          ))}
+                        </>
+                      )}
                     </SelectContent>
                   </Select>
                 </div>
@@ -184,6 +209,16 @@ export function AnnotationSettingsPanel({
                 </div>
               </div>
 
+              {/* Add Custom Font Button */}
+              <div>
+                <AddCustomFontDialog
+                  onFontAdded={(font) => {
+                    setCustomFonts(getCustomFonts());
+                    onStyleChange({ fontFamily: font.fontFamily });
+                  }}
+                />
+              </div>
+
               {/* Formatting Toggles */}
               <div className="flex items-center justify-between gap-2">
                 <ToggleGroup type="multiple" className="justify-start bg-white/5 p-1 rounded-lg border border-white/5">
diff --git a/src/lib/customFonts.ts b/src/lib/customFonts.ts
new file mode 100644
index 0000000..f6da806
--- /dev/null
+++ b/src/lib/customFonts.ts
@@ -0,0 +1,178 @@
+// Google Fonts loading and management utility
+
+export interface CustomFont {
+  id: string;
+  name: string; // Display name
+  fontFamily: string; // CSS font-family value
+  importUrl: string; // Google Fonts @import URL
+}
+
+const STORAGE_KEY = 'openscreen_custom_fonts';
+const loadedFonts = new Set<string>();
+
+// Load custom fonts from localStorage
+export function getCustomFonts(): CustomFont[] {
+  try {
+    const stored = localStorage.getItem(STORAGE_KEY);
+    return stored ? JSON.parse(stored) : [];
+  } catch (error) {
+    console.error('Failed to load custom fonts from storage:', error);
+    return [];
+  }
+}
+
+// Save custom fonts to localStorage
+export function saveCustomFonts(fonts: CustomFont[]): void {
+  try {
+    localStorage.setItem(STORAGE_KEY, JSON.stringify(fonts));
+  } catch (error) {
+    console.error('Failed to save custom fonts to storage:', error);
+  }
+}
+
+// Add a new custom font (throws error if font fails to load)
+export async function addCustomFont(font: CustomFont): Promise<CustomFont[]> {
+  const fonts = getCustomFonts();
+  const exists = fonts.some(f => f.id === font.id || f.fontFamily === font.fontFamily);
+
+  if (exists) {
+    return fonts;
+  }
+
+  // Try to load the font first - this will throw if it fails
+  await loadFont(font);
+
+  // Only add to storage if font loaded successfully
+  fonts.push(font);
+  saveCustomFonts(fonts);
+
+  return fonts;
+}
+
+// Remove a custom font
+export function removeCustomFont(fontId: string): CustomFont[] {
+  const fonts = getCustomFonts();
+  const filtered = fonts.filter(f => f.id !== fontId);
+  saveCustomFonts(filtered);
+
+  // Remove the style element
+  const styleEl = document.getElementById(`custom-font-${fontId}`);
+  if (styleEl) {
+    styleEl.remove();
+  }
+
+  loadedFonts.delete(fontId);
+  return filtered;
+}
+
+// Load a Google Font into the document
+export function loadFont(font: CustomFont): Promise<void> {
+  return new Promise((resolve, reject) => {
+    // Skip if already loaded
+    if (loadedFonts.has(font.id)) {
+      resolve();
+      return;
+    }
+
+    try {
+      const styleId = `custom-font-${font.id}`;
+
+      // Remove existing style if present
+      const existing = document.getElementById(styleId);
+      if (existing) {
+        existing.remove();
+      }
+
+      // Create style element with @import
+      const style = document.createElement('style');
+      style.id = styleId;
+      style.textContent = `@import url('${font.importUrl}');`;
+      document.head.appendChild(style);
+
+      // Wait for font to load
+      waitForFont(font.fontFamily)
+        .then(() => {
+          loadedFonts.add(font.id);
+          resolve();
+        })
+        .catch(reject);
+
+    } catch (error) {
+      console.error('Failed to load font:', font, error);
+      reject(error);
+    }
+  });
+}
+
+// Wait for a font to be available and verify it loaded
+function waitForFont(fontFamily: string, timeout = 5000): Promise<void> {
+  return new Promise((resolve, reject) => {
+    // Use CSS Font Loading API if available
+    if ('fonts' in document) {
+      Promise.race([
+        document.fonts.load(`16px "${fontFamily}"`),
+        new Promise((_, rej) => setTimeout(() => rej(new Error('Font load timeout')), timeout))
+      ])
+        .then(() => {
+          // Verify the font actually loaded by checking if it's available
+          const isAvailable = document.fonts.check(`16px "${fontFamily}"`);
+          if (isAvailable) {
+            resolve();
+          } else {
+            reject(new Error(`Font "${fontFamily}" failed to load`));
+          }
+        })
+        .catch((error) => {
+          reject(error);
+        });
+    } else {
+      // Fallback for browsers without Font Loading API
+      // Wait a bit and hope for the best
+      setTimeout(() => resolve(), 1000);
+    }
+  });
+}
+
+// Load all stored custom fonts on app initialization
+export function loadAllCustomFonts(): Promise<void[]> {
+  const fonts = getCustomFonts();
+  return Promise.all(fonts.map(font => loadFont(font).catch(err => {
+    console.error('Failed to load custom font:', font.name, err);
+  })));
+}
+
+// Generate a unique ID for a font
+export function generateFontId(name: string): string {
+  return `${name.toLowerCase().replace(/\s+/g, '-')}-${Date.now()}`;
+}
+
+// Parse Google Fonts @import URL to extract font family name
+export function parseFontFamilyFromImport(importUrl: string): string | null {
+  try {
+    // Extract from URL like: https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap
+    const url = new URL(importUrl);
+    const familyParam = url.searchParams.get('family');
+
+    if (familyParam) {
+      // Remove weight/style info: "Roboto:wght@400;700" -> "Roboto"
+      const fontName = familyParam.split(':')[0];
+      // Replace + with spaces: "Open+Sans" -> "Open Sans"
+      return fontName.replace(/\+/g, ' ');
+    }
+
+    return null;
+  } catch (error) {
+    console.error('Failed to parse font family from import URL:', error);
+    return null;
+  }
+}
+
+// Validate if a string looks like a Google Fonts import URL
+export function isValidGoogleFontsUrl(url: string): boolean {
+  try {
+    const urlObj = new URL(url);
+    return urlObj.hostname === 'fonts.googleapis.com' && urlObj.searchParams.has('family');
+  } catch {
+    return false;
+  }
+}