Formcrest
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form backend · POST and done

Yourform.
Ourbackend.

Point any HTML form at Formcrest. We validate, filter spam, store, and deliver submissions to verified inboxes, webhooks, Slack, or Discord — without you running a server.

Start free — no cardSee how it works

500 submissions/mo free · spam filtering on every plan · EU-friendly

contact.html
<form action="https://api.formcrest.com/v1/submit/x9k2v"
        method="POST">
  <input name="email" />
  <button>Send</button>
</form>
ValidatedSpam-checkedDelivered

New submission — jane@acme.com

delivered to 3 inboxes · webhook 200 · 84 ms

200 OK
500free submissions, every month
30+destination inboxes on Agency
1HTML attribute to change
€5stackable +20-inbox top-up

The pipeline

One POST. Five things handled.

Every submission runs the same hardened path — you never write server code for it.

  1. 01Your HTML form

    Any page, any framework — or none.

  2. 02Validate

    Required fields, types, size limits.

  3. 03Filter spam

    Honeypot, Turnstile, rate limits.

  4. 04Store

    Searchable archive, CSV export.

  5. 05Deliver

    Inboxes, webhooks, Slack, Discord.

Batteries included

Everything after the submit button

Spam never reaches you

Honeypot fields, Cloudflare Turnstile, and per-IP rate limits run on every plan — free included. Flagged entries are quarantined, not forwarded.

honeypot ✓turnstile ✓rate-limit ✓domain whitelist ✓

Routed to verified inboxes

Instant emails or hourly/daily digests, per-form templates, Reply-To, BCC, and autoresponders for your submitters.

Signed webhooks

HMAC-signed payloads with automatic retries and dead-letter capture.

X-Formcrest-Signature: sha256=9f2a…

Slack & Discord

Pipe submissions straight into the channel where your team already lives.

File uploads

Attachments validated by magic bytes — not file extensions — and stored on R2 with signed download links.

Form analytics

Volume trends, spam rate, top countries and referrers — per form, no extra tracking script.

Setup

Live in three steps

  1. Verify a destination

    Tell us where submissions should land. Click the confirmation email. Done.

  2. Create a form

    Name it and get a unique endpoint URL instantly — no schema required.

  3. Point your form at it

    Change one action= attribute in your HTML. Deploys with your site as-is.

    <form action="https://api.formcrest.com/v1/submit/…">

Switching from another form backend?

Keep your HTML. Change one URL.

Your markup stays exactly where it is. Swap the endpoint, and submissions start flowing through Formcrest's pipeline.

Start free — no cardvs web3formsvs Formspree