FEEDBACK FORM · SVELTE

Feedback Form for Svelte

Rating + free-text feedback with optional follow-up email. Free for 500 submissions per month — no backend, no SDK, no plugin.

Get free access key Copy the code

500/mo free·no card·drop-in for Svelte

form.htmlhtml23 lines

01<form action="https://splitforms.com/api/submit" method="POST">
02  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY">
03  <input type="hidden" name="subject" value="New feedback submission">
04 
05  <label for="rating">How would you rate your experience? *</label>
06  <select id="rating" name="rating" required>
07    <option value="">Choose…</option>
08    <option>★★★★★</option>
09    <option>★★★★☆</option>
10    <option>★★★☆☆</option>
11    <option>★★☆☆☆</option>
12    <option>★☆☆☆☆</option>
13  </select>
14  <label for="feedback">What can we do better? *</label>
15  <textarea id="feedback" name="feedback" placeholder="Be honest — we won't take it personally." required></textarea>
16  <label for="email">Email (optional, for follow-up)</label>
17  <input id="email" type="email" name="email" placeholder="you@example.com">
18 
19  <!-- honeypot — bots fill every field -->
20  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
21 
22  <button type="submit">Send</button>
23</form>

500

submissions / mo, free

fields, ready to ship

code outputs

60s

from copy to inbox

§ 00Svelte + Feedback Formplatform-specific integration guide

Why Svelte developers choose splitforms for feedback form

Svelte's lightweight runtime is one of its biggest selling points — adding a heavy form library defeats the purpose. The feedback form on this page keeps that promise: it uses Svelte's native <code>on:submit</code> directive and a <code>fetch</code> POST, with no external dependencies. The form state lives in a simple <code>let</code> variable, not a store or a state machine. In SvelteKit, you could alternatively use a <code>+page.server.ts</code> action, but that couples your form to SvelteKit's server-side runtime — splitforms decouples it so the same form works on static hosts and other frameworks.

§ 00Quick answerHTML · feedback

Yes — this is the shortest safe path for Svelte.

Use the HTML snippet on this page, keep the feedback form fields visible in your Svelte UI, and let splitforms handle delivery, spam filtering, storage, and webhooks.

best implementation

Paste the HTML version, then replace YOUR_ACCESS_KEY.

The posted payload contains how would you rate your experience?, what can we do better?, email (optional, for follow-up). Required fields are how would you rate your experience? and what can we do better?.

native svelte reality

Plain Svelte (without SvelteKit) is a compiler — there's no runtime route handler, no server, no built-in form delivery.

use case fit

Customer feedback is the cheapest product research you have. The form captures NPS / CSAT plus an open comment — and routes negative responses to a Slack channel for same-day triage.

§ 01Feedback Form × Sveltewhy this combination, in 80 words

Built for Svelte developers who hate operating a backend.

Splitforms is the form backend for Svelte sites. One POST endpoint, no SDK, no plugin — drop the feedback form into a page and ship.

Splitforms is the form backend for Svelte sites. One POST endpoint, spam filtering, and a real dashboard — drop-in, no server, no PHP. Free for 500 dashboard submissions per month; Starter adds email, signed webhooks, exports, and retained uploads; Pro is $5/mo for 5,000.

✦ what you get on the free plan

✓500 form submissions per month
✓2 forms on Free; unlimited forms on Pro
✓Spam protection (honeypot + classifier)
✓Webhooks: Slack, Discord, WhatsApp, custom
✓CSV export of all submissions
✓Email notifications (CC and BCC on Pro)

§ 02Copy-paste codeHTML · 23 lines

Drop into any Svelte project.

Replace YOUR_ACCESS_KEY with your splitforms key, paste into a Svelte page, and ship. No build-time integration required.

form.htmlhtml23 lines

01<form action="https://splitforms.com/api/submit" method="POST">
02  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY">
03  <input type="hidden" name="subject" value="New feedback submission">
04 
05  <label for="rating">How would you rate your experience? *</label>
06  <select id="rating" name="rating" required>
07    <option value="">Choose…</option>
08    <option>★★★★★</option>
09    <option>★★★★☆</option>
10    <option>★★★☆☆</option>
11    <option>★★☆☆☆</option>
12    <option>★☆☆☆☆</option>
13  </select>
14  <label for="feedback">What can we do better? *</label>
15  <textarea id="feedback" name="feedback" placeholder="Be honest — we won't take it personally." required></textarea>
16  <label for="email">Email (optional, for follow-up)</label>
17  <input id="email" type="email" name="email" placeholder="you@example.com">
18 
19  <!-- honeypot — bots fill every field -->
20  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
21 
22  <button type="submit">Send</button>
23</form>

§ 03Setup3 steps · 60 seconds · zero config

Generate, embed, receive.

Three actions stand between you and your first feedback form submission. None of them require a backend, a database, or a CAPTCHA library.

STEP 01GENERATE

Generate a free splitforms key

Create your form

key=sk_live_••••••••

STEP 02EMBED

Paste the feedback form into your Svelte project

Drop the form snippet into a Svelte page, component, or layout. Replace YOUR_ACCESS_KEY with the key from your dashboard. The form action is a hard-coded URL — no env vars or build-time wiring needed.

snippethtml

<form action="https://splitforms.com/api/submit" method="POST">
  …
</form>

STEP 03RECEIVE

Receive submissions

Dashboard updates live on Free. Starter adds email delivery, signed webhooks, CSV export, Slack/Discord forwarding, and BCC to your team.

inbox · 1 newjust now

FROM contact@yoursite.com

New feedback submission

Maya Iyer maya@studio71.co

Loved the demo — quick question about pricing on the 3-year plan. Are usage limits per project or account-wide?

§ 03bCustomer Feedback Form (NPS / CSAT / Open-Ended)template-specific playbook

The reason this feedback form exists.

Webhooks into Slack / Linear / Productboard · NPS detractor triage in minutes.

why it matters

Feedback forms cost almost nothing to ship and pay back disproportionately — every NPS detractor (score 0-6) is a conversation that prevents churn, every promoter (9-10) is a referral or testimonial source. The form is simple: 0-10 rating, an optional comment, and an email. The leverage is in the routing: detractors auto-DM your support lead in Slack within minutes, promoters get a 'mind leaving us a G2 / Trustpilot review?' follow-up, passives go into a digest. Survey tools (SurveyMonkey, Typeform, Hotjar) charge $30-100/mo for the same pattern. The form pattern is 30 lines of HTML.

route the submission

Capture rating + comment

Required: 0-10 NPS rating (or 1-5 CSAT for transactional surveys). Optional: comment textarea, email for follow-up. Keep it minimal — long surveys tank completion.

Route by score

Webhook branches on score: 0-6 (detractors) DM Slack support channel; 7-8 (passives) go to weekly digest; 9-10 (promoters) trigger a G2 / Trustpilot review-request email.

Push to your tools

Detractor comments to Linear / Productboard for product triage. Promoter quotes to a 'testimonials' Notion database for marketing. Raw data to a CSV / BigQuery / dbt warehouse for trend analysis.

§ 03cSvelte production notesnative path · deploy · gotchas

What changes when this feedback form lives in Svelte.

These notes come from the Svelte platform registry and are rendered on this template page so crawlers see the framework-specific answer without opening a separate guide.

without splitforms

Plain Svelte (without SvelteKit) is a compiler — there's no runtime route handler, no server, no built-in form delivery. To ship a working form natively you'd add a separate Node/Bun/Express layer, write the SMTP wiring, and operate it. SvelteKit ships form actions and use:enhance for progressive enhancement, but those just give you ergonomic ways to call your own backend; the actual email-delivery, spam-filtering, and submission-storage are still on you. Svelte 5 runes change reactivity syntax, not the operational model. Splitforms removes the entire 'add a backend' step: the runtime is one URL, hosted by us.

deploy notes

Vite + Svelte (non-Kit) builds a static bundle for any host. SvelteKit deploys via adapters: @sveltejs/adapter-vercel, -netlify, -cloudflare, -node, -static. The form posts client-side regardless of adapter, so the form itself works identically on each. Use VITE_SPLITFORMS_KEY for plain Vite-Svelte projects; SvelteKit uses $env/static/public from PUBLIC_SPLITFORMS_KEY. Svelte islands embedded in Astro hydrate via client:visible — the form's fetch only runs after the user scrolls to it, saving JS execution on initial load. Lock the access key to your domain.

Svelte gotcha

Svelte 5 runes vs Svelte 4 reactive let — pick one

Svelte 5 introduces $state(...) runes; Svelte 4 uses plain let status = 'idle'. They're not interchangeable in the same component. Check package.json for "svelte": "^5" and use runes accordingly. Mixing them throws a confusing 'rune used outside .svelte.js' error.

Svelte gotcha

on:submit|preventDefault becomes onsubmit={(e) => …} in Svelte 5

If you copy a Svelte 4 snippet into a Svelte 5 project, the on:submit|preventDefault modifier syntax is gone. Use onsubmit={(e) => { e.preventDefault(); … }} or migrate to a SvelteKit form action that handles preventDefault for you.

Svelte gotcha

bind:value desyncs FormData if you forget the `name` attribute

FormData reads from name="…" attributes, not Svelte's bind:value. If you bind a value but skip the name attribute, the field is silently dropped from the POST body. Always set both.

Svelte gotcha

Vite-only Svelte projects can't use $env/static/private

$env/static/private is a SvelteKit feature, not a Vite-Svelte one. In a vanilla Vite + Svelte project, use import.meta.env.VITE_SPLITFORMS_KEY (must have the VITE_ prefix or it's undefined client-side).

PATTERN A

Pattern A — Svelte 4 reactive let

Classic Svelte syntax: let status = 'idle', reactive by assignment. Works in every Svelte version with a deprecation warning in Svelte 5. Single-file component, no SvelteKit required. Use the same wiring for the feedback form fields on this page.

pattern-a.txtsvelte14 lines

01<script>
02  let status = "idle";
03  async function onSubmit(e) {
04    status = "loading";
05    const fd = new FormData(e.target);
06    fd.append("access_key", import.meta.env.VITE_SPLITFORMS_KEY);
07    const r = await fetch("https://splitforms.com/api/submit", { method: "POST", body: fd });
08    status = (await r.json()).success ? "ok" : "err";
09  }
10</script>
11<form on:submit|preventDefault={onSubmit}>
12  <input name="email" type="email" required />
13  <button disabled={status === "loading"}>Send</button>
14</form>

PATTERN B

Pattern B — Svelte 5 runes

$state(...) for reactive variables, onsubmit={...} (no on: prefix) for events. Cleaner reactivity model, full TypeScript inference on state. Use the same wiring for the feedback form fields on this page.

pattern-b.txtsvelte14 lines

01<script lang="ts">
02  let status = $state<"idle" | "loading" | "ok" | "err">("idle");
03  async function onSubmit(e: SubmitEvent) {
04    e.preventDefault(); status = "loading";
05    const fd = new FormData(e.currentTarget as HTMLFormElement);
06    fd.append("access_key", import.meta.env.VITE_SPLITFORMS_KEY);
07    const r = await fetch("https://splitforms.com/api/submit", { method: "POST", body: fd });
08    status = (await r.json()).success ? "ok" : "err";
09  }
10</script>
11<form onsubmit={onSubmit}>
12  <input name="email" type="email" required />
13  <button disabled={status === "loading"}>Send</button>
14</form>

§ 04Field-by-field rundown3 fields · names you POST

What every field actually does.

Each field below ships in the feedback form template — rename, remove, or add your own. Splitforms accepts any name you POST.

ratingREQUIRED

SELECT

How would you rate your experience?

NPS / CSAT signal — quantitative complement to the comment field.

★★★★★★★★★☆★★★☆☆★★☆☆☆★☆☆☆☆

feedbackREQUIRED

TEXTAREA

What can we do better?

Free-text input — no character limit, expands as the visitor types.

placeholder · Be honest — we won't take it personally.

Email (optional, for follow-up)

Reply-to address — splitforms wires this so hitting reply goes back to the sender.

placeholder · you@example.com

§ 05Feedback Form on other frameworks21 frameworks · same backend

One backend. Every framework.

The same feedback form template works on every framework splitforms supports. Pick yours.

§ 06Questions9 answered

Feedback Form on Svelte — FAQ.

Direct answers, no marketing fluff. Missing one? Email hello@splitforms.com.

01Does this feedback form work on Svelte?

Yes. The form is plain HTML with a single POST endpoint, so it runs on any Svelte site without server-side code, plugins, or SDKs. Drop the snippet into a Svelte page or component and submissions land in your splitforms dashboard.

02How much does the feedback form cost on Svelte?

Free for 500 submissions per month — no credit card, no trial. Pro is $5/mo for 5,000 submissions, and there's a one-time $59 3-year plan (15,000 submissions/mo for 36 months). The same pricing applies regardless of which framework hosts the form.

03Can I customize the fields?

Yes. The template ships with sensible defaults (how would you rate your experience?, what can we do better?, email (optional, for follow-up)…) — add, remove, or rename any of them. Splitforms accepts whatever fields you POST.

04How does spam protection work on the feedback form?

A hidden honeypot field catches dumb bots, and a tuned classifier scores the rest. You only see real submissions in your dashboard. No CAPTCHA, no friction for human users — and it works the same on Svelte as on any other framework.

05Can I send the feedback form submissions to Slack or Discord?

Yes. Webhooks are available on Starter and above, with auto-formatted payloads for Slack, Discord, and WhatsApp (via CallMeBot). Or send raw signed JSON to any URL — Zapier, n8n, your own server. Configure in the splitforms dashboard.

06Will it work on a static Svelte site?

Yes — the form posts directly to splitforms from the browser, so no server is involved. Works on Vercel, Netlify, GitHub Pages, Cloudflare Pages, S3, or any plain Apache host.

07Should I use NPS or CSAT?

NPS (0-10) for relationship surveys ('how likely are you to recommend us?') sent quarterly or after major moments. CSAT (1-5) for transactional surveys ('how was this support ticket?') sent right after the interaction. Different questions, different cadences, both common patterns.

08Will I get response bias from a public form?

Yes — open-link feedback skews toward people with strong feelings (positive or negative). For statistically representative measurement, send the survey via email to a random sample of users. The public form catches the heat-of-moment feedback you'd otherwise miss.

09Can I push to Slack / Linear / Productboard?

Yes — webhook the JSON. Slack has incoming webhooks (free); Linear and Productboard accept inbound issue creation via Zapier or native APIs. Detractor comments showing up as a Linear issue with the rating prefilled in the title is a powerful workflow.

§ 07Comparisonvs Web3Forms · vs Formspree

splitforms vs everything else.

Same drop-in API. More free submissions, Starter signed webhooks, MCP support no other backend has.

Feature	Web3Forms	Formspree	splitforms
Free monthly submissions	250	50	500
Custom fields beyond contact	Yes	Pro tier	Free
Webhooks (Slack / Discord)	Pro tier	Pro tier	Free, signed
AI / MCP submission inbox	No	No	Yes
Long-term plan (3-year flat)	—	—	$59 every 3 years

§ 08More templates for Svelte5 adjacent patterns

Ship a feedback form on Svelte in 60 seconds.

500 submissions per month, free forever. No credit card. Copy the snippet above and paste it into your Svelte project.

Get free access key →Read the docs

founders pricing locked in · early access open

Feedback Form for Svelte

Why Svelte developers choose splitforms for feedback form

Yes — this is the shortest safe path for Svelte.

Paste the HTML version, then replace YOUR_ACCESS_KEY.

Built for Svelte developers who hate operating a backend.

Drop into any Svelte project.

Generate, embed, receive.

Generate a free splitforms key

Paste the feedback form into your Svelte project

Receive submissions

The reason this feedback form exists.

Capture rating + comment

Route by score

Push to your tools

What changes when this feedback form lives in Svelte.

Svelte 5 runes vs Svelte 4 reactive let — pick one

on:submit|preventDefault becomes onsubmit={(e) => …} in Svelte 5

bind:value desyncs FormData if you forget the `name` attribute

Vite-only Svelte projects can't use $env/static/private

Pattern A — Svelte 4 reactive let

Pattern B — Svelte 5 runes

What every field actually does.

How would you rate your experience?

What can we do better?

Email (optional, for follow-up)

One backend. Every framework.

Feedback Form on Svelte — FAQ.

splitforms vs everything else.

Other ready-to-ship Svelte forms.

Ship a feedback form on Svelte in 60 seconds.