diff --git a/web/src/lib/components/strings/StringForm.svelte b/web/src/lib/components/strings/StringForm.svelte
new file mode 100644
index 00000000..6888b308
--- /dev/null
+++ b/web/src/lib/components/strings/StringForm.svelte
@@ -0,0 +1,134 @@
+<script module lang="ts">
+	export interface StringFormData {
+		filename: string;
+		description: string;
+		content: string;
+	}
+</script>
+
+<script lang="ts">
+	import { untrack } from "svelte";
+	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";
+	import X from "$icon/x";
+
+	interface Props {
+		mode?: "create" | "edit";
+		filename?: string;
+		description?: string;
+		content?: string;
+		onsubmit: (data: StringFormData) => Promise<void>;
+		oncancel?: () => void;
+	}
+
+	let {
+		mode = "create",
+		filename: initialFilename = "",
+		description: initialDescription = "",
+		content: initialContent = "",
+		onsubmit,
+		oncancel
+	}: Props = $props();
+
+	// seed once; the props can't change while the form is open.
+	let filename = $state(untrack(() => initialFilename));
+	let description = $state(untrack(() => initialDescription));
+	let content = $state(untrack(() => initialContent));
+	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();
+		isPublishing = true;
+		error = null;
+		try {
+			await onsubmit({ filename, description, content });
+		} catch (err) {
+			error = err instanceof Error ? err.message : "Failed to publish string";
+		} finally {
+			isPublishing = false;
+		}
+	};
+</script>
+
+<div class="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>
+
+			<div class="flex items-center gap-2">
+				{#if mode === "edit"}
+					<Button
+						type="button"
+						variant="default"
+						icon={X}
+						disabled={isPublishing}
+						onclick={oncancel}
+					>
+						Cancel
+					</Button>
+				{/if}
+				<Button
+					type="submit"
+					variant="primary"
+					icon={isPublishing ? Spinner : ArrowUp}
+					disabled={isPublishing}
+				>
+					Publish
+				</Button>
+			</div>
+		</div>
+
+		{#if error}
+			<div class="px-4 pb-4">
+				<ErrorAlert label={error} />
+			</div>
+		{/if}
+	</form>
+</div>
diff --git a/web/src/routes/strings/new/+page.svelte b/web/src/routes/strings/new/+page.svelte
index d543a8b0..09fe05b4 100644
--- a/web/src/routes/strings/new/+page.svelte
+++ b/web/src/routes/strings/new/+page.svelte
@@ -6,52 +6,31 @@
 	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";
+	import StringForm, { type StringFormData } from "$lib/components/strings/StringForm.svelte";
 
 	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();
+	const handleSubmit = async ({ filename, description, content }: StringFormData) => {
 		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 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}/${rkey}`);
-		} catch (err) {
-			error = err instanceof Error ? err.message : "Failed to publish string";
-		} finally {
-			isPublishing = false;
-		}
+				}
+			})
+		);
+		const rkey = rkeyFromUri(result.uri);
+		await goto(`/strings/${user?.handle}/${rkey}`);
 	};
 </script>
 
@@ -65,67 +44,7 @@
 		<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 class="mt-4">
+		<StringForm mode="create" onsubmit={handleSubmit} />
 	</div>
 </div>