diff --git a/web/src/lib/components/ui/Spinner.svelte b/web/src/lib/components/ui/Spinner.svelte
--- a/web/src/lib/components/ui/Spinner.svelte
+++ b/web/src/lib/components/ui/Spinner.svelte
@@ -1,11 +1,12 @@
 <script lang="ts">
+	import type { ClassValue } from "svelte/elements";
 	import LoaderCircle from "$icon/loader-circle";
 
 	interface Props {
-		class?: string;
+		class?: ClassValue | null;
 	}
 
 	let { class: className = "size-4" }: Props = $props();
 </script>
 
-<LoaderCircle class={`${className} animate-spin`} aria-hidden="true" />
+<LoaderCircle class={[className, "animate-spin"]} aria-hidden="true" />
diff --git a/web/src/routes/repo/new/+page.svelte b/web/src/routes/repo/new/+page.svelte
--- a/web/src/routes/repo/new/+page.svelte
+++ b/web/src/routes/repo/new/+page.svelte
@@ -30,7 +30,7 @@
 		</p>
 	</div>
 
-	<div class="rounded bg-background-default p-6 drop-shadow-sm">
+	<div class="rounded border border-border-default bg-background-default bg-background-default p-6">
 		<form>
 			<div class="relative flex gap-4 border-l border-border-default pl-6">
 				<div class="absolute -top-0 -left-3">
diff --git a/web/src/routes/strings/new/+page.server.ts b/web/src/routes/strings/new/+page.server.ts
new file mode 100644
--- /dev/null
+++ b/web/src/routes/strings/new/+page.server.ts
@@ -0,0 +1,6 @@
+import { requireAuth } from "$lib/auth/guards";
+import type { PageServerLoad } from "./$types";
+
+export const load: PageServerLoad = (event) => {
+	requireAuth(event);
+};
diff --git a/web/src/routes/strings/new/+page.svelte b/web/src/routes/strings/new/+page.svelte
new file mode 100644
--- /dev/null
+++ b/web/src/routes/strings/new/+page.svelte
@@ -0,0 +1,131 @@
+<script lang="ts">
+	import { goto } from "$app/navigation";
+	import { ok } from "@atcute/client";
+	import { mainSchema as createRecordSchema } from "@atcute/atproto/types/repo/createRecord";
+	import type { Nsid } from "@atcute/lexicons/syntax";
+	import { getAuth } from "$lib/auth.svelte";
+	import { createClient } from "$lib/auth/agent";
+	import { rkeyFromUri } from "$lib/api/uri";
+	import Button from "$lib/components/ui/Button.svelte";
+	import Spinner from "$lib/components/ui/Spinner.svelte";
+	import ErrorAlert from "$lib/components/ui/Error.svelte";
+	import ArrowUp from "$icon/arrow-up";
+
+	const auth = getAuth();
+	const user = $derived(auth.currentUser);
+
+	let filename = $state("");
+	let description = $state("");
+	let content = $state("");
+	let isPublishing = $state(false);
+	let error = $state<string | null>(null);
+
+	const lineCount = $derived(content === "" ? 0 : content.split("\n").length);
+	const byteCount = $derived(new TextEncoder().encode(content).length);
+
+	const handleSubmit = async (e: SubmitEvent) => {
+		e.preventDefault();
+		if (!auth.agent) return;
+		isPublishing = true;
+		error = null;
+		try {
+			const rpc = createClient(auth.agent);
+			const result = await ok(
+				rpc.call(createRecordSchema, {
+					input: {
+						repo: auth.agent.sub,
+						collection: "sh.tangled.string" as Nsid,
+						record: {
+							$type: "sh.tangled.string",
+							filename,
+							description,
+							contents: content,
+							createdAt: new Date().toISOString()
+						}
+					}
+				})
+			);
+			const rkey = rkeyFromUri(result.uri);
+			await goto(`/strings/${user?.handle}/${rkey}`);
+		} catch (err) {
+			error = err instanceof Error ? err.message : "Failed to publish string";
+		} finally {
+			isPublishing = false;
+		}
+	};
+</script>
+
+<svelte:head>
+	<title>New string &middot; Tangled</title>
+</svelte:head>
+
+<div class="mx-auto w-full max-w-screen-lg px-4 py-12">
+	<div class="px-2 py-2">
+		<h1 class="text-xl font-bold text-foreground-default">Create a new string</h1>
+		<p class="text-sm text-foreground-subtle">Store and share code snippets with ease.</p>
+	</div>
+
+	<div class="mt-4 rounded border border-border-default bg-background-default">
+		<form onsubmit={handleSubmit}>
+			<div class="flex flex-col gap-2 p-4">
+				<div class="flex flex-col gap-2 md:flex-row">
+					<input
+						type="text"
+						id="filename"
+						name="filename"
+						placeholder="Filename"
+						required
+						bind:value={filename}
+						disabled={isPublishing}
+						class="rounded border border-border-default bg-background-default px-2 py-2 text-sm text-foreground-default placeholder:text-foreground-placeholder focus:ring-1 focus:ring-border-strong focus:outline-none disabled:opacity-50 md:max-w-64"
+					/>
+					<input
+						type="text"
+						id="description"
+						name="description"
+						placeholder="Description ..."
+						maxlength={280}
+						bind:value={description}
+						disabled={isPublishing}
+						class="flex-1 rounded border border-border-default bg-background-default px-2 py-2 text-sm text-foreground-default placeholder:text-foreground-placeholder focus:ring-1 focus:ring-border-strong focus:outline-none disabled:opacity-50"
+					/>
+				</div>
+
+				<textarea
+					id="content"
+					name="content"
+					placeholder="Paste your string here!"
+					required
+					rows={20}
+					spellcheck={false}
+					bind:value={content}
+					disabled={isPublishing}
+					class="w-full resize-y rounded border border-border-default bg-background-default px-2 py-2 font-mono text-sm text-foreground-default placeholder:text-foreground-placeholder focus:ring-1 focus:ring-border-strong focus:outline-none disabled:opacity-50"
+				></textarea>
+			</div>
+
+			<div class="flex items-center justify-between px-4 py-3">
+				<div class="text-sm text-foreground-subtle">
+					<span>{lineCount} line{lineCount !== 1 ? "s" : ""}</span>
+					<span class="px-1 select-none">·</span>
+					<span>{byteCount} byte{byteCount !== 1 ? "s" : ""}</span>
+				</div>
+
+				<Button
+					type="submit"
+					variant="primary"
+					icon={isPublishing ? Spinner : ArrowUp}
+					disabled={isPublishing}
+				>
+					Publish
+				</Button>
+			</div>
+
+			{#if error}
+				<div class="px-4 pb-4">
+					<ErrorAlert label={error} />
+				</div>
+			{/if}
+		</form>
+	</div>
+</div>