diff --git a/frontend/src/routes/gh_success/+page.svelte b/frontend/src/routes/gh_success/+page.svelte
new file mode 100644
index 0000000000..01234945d5
--- /dev/null
+++ b/frontend/src/routes/gh_success/+page.svelte
@@ -0,0 +1,105 @@
+<script lang="ts">
+	import { onMount } from 'svelte'
+	import { CheckCircle, XCircle } from 'lucide-svelte'
+	import { sendUserToast } from '$lib/toast'
+
+	let isLoading = true
+	let isSuccess = false
+	let errorMessage = ''
+
+	function closeWindow() {
+		window.close()
+	}
+
+	onMount(async () => {
+		const url = new URL(window.location.href)
+		const workspace_id = url.searchParams.get('workspace_id') || ''
+		const installation_id_str = url.searchParams.get('installation_id') || ''
+		const account_id = url.searchParams.get('account_id') || ''
+		const jwt_token = url.searchParams.get('jwt_token') || ''
+
+		const installation_id = parseInt(installation_id_str, 10)
+
+		if (!workspace_id || isNaN(installation_id) || !account_id || !jwt_token) {
+			isLoading = false
+			errorMessage = 'Missing or invalid required parameters'
+			sendUserToast('Missing or invalid required parameters in the URL', true)
+			return
+		}
+
+		try {
+			const response = await fetch(`/api/w/${workspace_id}/github_app/installation_callback`, {
+				method: 'POST',
+				headers: {
+					'Content-Type': 'application/json'
+				},
+				body: JSON.stringify({
+					installation_id,
+					account_id,
+					jwt_token
+				})
+			})
+
+			if (!response.ok) {
+				const errorData = await response.text()
+				throw new Error(errorData || 'Failed to complete GitHub app installation')
+			}
+
+			isSuccess = true
+			sendUserToast('GitHub app installed successfully', false)
+		} catch (error) {
+			console.error('Error during GitHub app installation:', error)
+			errorMessage = error instanceof Error ? error.message : 'Unknown error occurred'
+			sendUserToast(`Error installing GitHub app: ${errorMessage}`, true)
+		} finally {
+			isLoading = false
+		}
+	})
+</script>
+
+<div class="h-screen w-screen flex items-center justify-center bg-surface p-4">
+	<div class="w-full max-w-3xl p-8 rounded-md border bg-surface shadow-sm">
+		{#if isLoading}
+			<div class="flex flex-col items-center justify-center py-8">
+				<div class="animate-spin h-8 w-8 border-2 border-primary border-t-transparent rounded-full mb-4"></div>
+				<p class="text-lg text-secondary">Processing GitHub app installation...</p>
+			</div>
+		{:else if isSuccess}
+			<div class="flex flex-col">
+				<h1 class="text-2xl font-bold pb-6 flex flex-row items-center gap-2">
+					<CheckCircle class="w-8 h-8 text-green-500" />
+					Windmill GitHub app installation completed successfully
+				</h1>
+				<p class="text-secondary mb-8">
+					The GitHub app has been successfully installed. You can now close this window and return to Windmill to start using the GitHub integration.
+				</p>
+				<button
+					on:click={closeWindow}
+					class="w-full py-2 px-4 bg-green-600 hover:bg-green-700 text-white font-medium rounded transition-colors"
+				>
+					Close this window
+				</button>
+			</div>
+		{:else}
+			<div class="flex flex-col">
+				<h1 class="text-2xl font-bold pb-6 flex flex-row items-center gap-2">
+					<XCircle class="w-8 h-8 text-red-500" />
+					Failed to install Windmill GitHub app
+				</h1>
+				<p class="text-secondary pb-4">There was an error during the installation process:</p>
+				<div class="bg-surface-secondary p-4 rounded border border-red-300 text-red-600 mb-8">
+					{errorMessage}
+				</div>
+				<p class="text-secondary mb-8">
+					Please try again or contact your administrator for assistance.
+				</p>
+				<button
+					on:click={closeWindow}
+					class="w-full py-2 px-4 bg-red-600 hover:bg-red-700 text-white font-medium rounded transition-colors"
+				>
+					Close this window
+				</button>
+			</div>
+		{/if}
+	</div>
+</div>