FEEDBACK FORM · ELEVENTY

Feedback Form for Eleventy

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 Eleventy

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

§ 00Eleventy + Feedback Formplatform-specific integration guide

Why Eleventy developers choose splitforms for feedback form

Eleventy (11ty) is a flexible static site generator that lets you use any templating language, but it doesn't process form submissions — the output is static HTML. Adding a Node server or a Netlify function just for a contact form defeats the simplicity that makes Eleventy appealing. The feedback form on this page posts from the browser to splitforms, so your Eleventy site stays static. It works with Nunjucks, Handlebars, Liquid, Markdown, and every Eleventy template language because the form is plain HTML.

§ 00Quick answerHTML · feedback

Yes — this is the shortest safe path for Eleventy.

Use the HTML snippet on this page, keep the feedback form fields visible in your Eleventy 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 eleventy reality

Eleventy is a Node-based static site generator — it produces HTML at build time and ships nothing else.

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 × Eleventywhy this combination, in 80 words

Built for Eleventy developers who hate operating a backend.

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

Splitforms is the form backend for Eleventy 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 Eleventy project.

Replace YOUR_ACCESS_KEY with your splitforms key, paste into a Eleventy 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 Eleventy project

Drop the form snippet into a Eleventy 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.

§ 03cEleventy production notesnative path · deploy · gotchas

What changes when this feedback form lives in Eleventy.

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

without splitforms

Eleventy is a Node-based static site generator — it produces HTML at build time and ships nothing else. There is no runtime, no /api/contact endpoint, no hooks for handling a form POST. The historical workarounds: (a) deploy to Netlify and use Netlify Forms, (b) write a Cloudflare Worker that handles POST /contact and forwards to your email provider (~4 hours plus ongoing operation), or (c) use a third-party form API (Formspree, Web3Forms, Basin, splitforms). Eleventy's data cascade lets you neatly pull an access key from _data/site.js and use it in a Nunjucks/Liquid include — but the actual delivery layer is always external. Splitforms is the lowest-friction external option.

deploy notes

Eleventy deploys to any static host. The form posts cross-origin to splitforms.com so the host is irrelevant for delivery. Eleventy v3's ESM-only config is the major upgrade gotcha — .eleventy.js (CommonJS) silently stops exposing globals; rename to eleventy.config.mjs. Local dev runs on localhost:8080 — add to splitforms allowed-domains for testing or use a separate dev key. _data/site.js (not .json) lets you read from process.env; keep .env in gitignore. For 11ty + Netlify (the classic combo), you can use Netlify Forms instead, but you cap out at 100/mo — splitforms gives 500/mo and works on every host.

Eleventy gotcha

Eleventy v3 is ESM-only — your config must be .mjs

If you upgraded to Eleventy 3 and your .eleventy.js (CommonJS) silently stopped exposing globals, that's why. Rename to eleventy.config.mjs and use ESM export default. Otherwise addGlobalData('splitformsKey', …) won't reach your templates.

Eleventy gotcha

Liquid filters and Nunjucks filters have different names

{{ '/thanks/' | url }} works in Nunjucks (with the eleventy-plugin-url plugin). In Liquid, the filter is | url_for or you skip the filter entirely and write the path literally. Mismatched filter names render nothing — the form's redirect URL becomes empty.

Eleventy gotcha

Global data with sensitive values gets committed by accident

If you put your access key in _data/site.json (the obvious place), it ships to your repo. Use _data/site.js and read from process.env.SPLITFORMS_KEY instead — then add .env to gitignore. Eleventy auto-loads .env if you have dotenv installed.

Eleventy gotcha

Permalinks: false on the contact page makes the redirect fail

If your contact page has permalink: false (rare but possible), it's not built — and splitforms's redirect target points at a 404. Always ensure both the form page and the /thanks page have valid permalinks.

PATTERN A

Pattern A — Nunjucks include from `_includes/partials/`

Save as src/_includes/partials/contact-form.njk. Use from any template with {% include "partials/contact-form.njk" %}. Pulls the key from a global data file that reads process.env.SPLITFORMS_KEY. Use the same wiring for the feedback form fields on this page.

pattern-a.htmlhtml7 lines

01<form action="https://splitforms.com/api/submit" method="POST">
02  <input type="hidden" name="access_key" value="{{ splitformsKey }}" />
03  <input type="hidden" name="redirect"   value="{{ '/thanks/' | url }}" />
04  <input name="email" type="email" required />
05  <textarea name="message" required></textarea>
06  <button type="submit">Send</button>
07</form>

PATTERN B

Pattern B — Eleventy v3 ESM config

Eleventy 3 is ESM-only. Use eleventy.config.mjs and addGlobalData to wire the key from environment. Liquid templates work the same way — just save as .liquid. Use the same wiring for the feedback form fields on this page.

pattern-b.htmlhtml6 lines

01// eleventy.config.mjs
02import "dotenv/config";
03export default function (config) {
04  config.addGlobalData("splitformsKey", process.env.SPLITFORMS_KEY);
05  return { dir: { input: "src", output: "_site" } };
06}

§ 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 Eleventy — FAQ.

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

01Does this feedback form work on Eleventy?

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

02How much does the feedback form cost on Eleventy?

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 Eleventy 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 Eleventy 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 Eleventy5 adjacent patterns

Ship a feedback form on Eleventy in 60 seconds.

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

Get free access key →Read the docs

founders pricing locked in · early access open

Feedback Form for Eleventy

Why Eleventy developers choose splitforms for feedback form

Yes — this is the shortest safe path for Eleventy.

Paste the HTML version, then replace YOUR_ACCESS_KEY.

Built for Eleventy developers who hate operating a backend.

Drop into any Eleventy project.

Generate, embed, receive.

Generate a free splitforms key

Paste the feedback form into your Eleventy 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 Eleventy.

Eleventy v3 is ESM-only — your config must be .mjs

Liquid filters and Nunjucks filters have different names

Global data with sensitive values gets committed by accident

Permalinks: false on the contact page makes the redirect fail

Pattern A — Nunjucks include from `_includes/partials/`

Pattern B — Eleventy v3 ESM config

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 Eleventy — FAQ.

splitforms vs everything else.

Other ready-to-ship Eleventy forms.

Ship a feedback form on Eleventy in 60 seconds.