Contact Form (with phone) for Gatsby
Name, email, phone, company, reason — for B2B inquiries that need qualification. Free for 500 submissions per month — no backend, no SDK, no plugin.
Why Gatsby developers choose splitforms for contact form (with phone)
Gatsby's static output is excellent for SEO and performance, but static HTML forms have no way to deliver submissions without a backend. Gatsby Cloud offers serverless functions, but wiring SMTP and a dashboard is a substantial project for what should be a simple contact form. The contact form (with phone) on this page posts from the browser to splitforms — no Gatsby Function, no API route, no build-time configuration. The form works identically whether you deploy to Gatsby Cloud, Netlify, Cloudflare Pages, or any static host.
Yes — this is the shortest safe path for Gatsby.
Use the React / Next.js snippet on this page, keep the contact form (with phone) fields visible in your Gatsby UI, and let splitforms handle delivery, spam filtering, storage, and webhooks.
Paste the React / Next.js version, then replace YOUR_ACCESS_KEY.
The posted payload contains full name, work email, phone, company, what's this about?, message. Required fields are full name, work email, phone, what's this about? and message.
Gatsby builds a static React app, so 'native' means choosing between (a) Netlify Forms (Gatsby-on-Netlify only, 100 free submissions/month, gatsby-plugin-netlify required), (b) Gatsby Functions (deprecated in Gatsby 5 — they were removed when Gatsby Cloud shut down), or (c) a third-party form backend.
A contact form with a phone number field that auto-formats as the user types — (555) 123-4567 emerges from raw digits. Pure pattern validation, optional JS mask for the live formatting.
Built for Gatsby developers who hate operating a backend.
Splitforms is the form backend for Gatsby sites. One POST endpoint, no SDK, no plugin — drop the contact form (with phone) into a page and ship.
Splitforms is the form backend for Gatsby 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.
- ✓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)
Drop into any Gatsby project.
Replace YOUR_ACCESS_KEY with your splitforms key, paste into a Gatsby page, and ship. No build-time integration required.
Generate, embed, receive.
Three actions stand between you and your first contact form (with phone) submission. None of them require a backend, a database, or a CAPTCHA library.
Generate a free splitforms key
Sign in at splitforms.com — your access key is created instantly. No credit card, no setup wizard, no SDK to install.
Paste the contact form (with phone) into your Gatsby project
Drop the form snippet into a Gatsby 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.
Receive submissions
Dashboard updates live on Free. Starter adds email delivery, signed webhooks, CSV export, Slack/Discord forwarding, and BCC to your team.
The reason this contact form (with phone) exists.
Mobile-friendly numeric keypad, live mask, format-tolerant.
Phone fields suffer from format chaos — users type +1 555 123 4567, (555) 123 4567, 555.123.4567, 5551234567. Three options: accept anything and normalize server-side (best for international), use a pattern attribute for client-side validation (good for US-only), or apply a JavaScript mask that formats as the user types (highest conversion, more code). splitforms accepts any format and your form's UX is whichever approach fits your audience.
Use type="tel" not type="text"
Mobile keyboards open the numeric keypad for tel inputs. Desktop accepts the same characters as text but signals intent.
Add a pattern attribute for validation
`pattern="[0-9() +-]+"` allows the common phone characters. Or use a strict US format: `pattern="\(?\d{3}\)?[ -]?\d{3}[ -]?\d{4}"`.
(Optional) Add the JS mask
On input, strip non-digits and reformat to `(XXX) XXX-XXXX`. The mask runs on every keystroke, giving live formatting feedback.
What changes when this contact form (with phone) lives in Gatsby.
These notes come from the Gatsby platform registry and are rendered on this template page so crawlers see the framework-specific answer without opening a separate guide.
Gatsby builds a static React app, so 'native' means choosing between (a) Netlify Forms (Gatsby-on-Netlify only, 100 free submissions/month, gatsby-plugin-netlify required), (b) Gatsby Functions (deprecated in Gatsby 5 — they were removed when Gatsby Cloud shut down), or (c) a third-party form backend. Gatsby v4 had Functions running as Lambda-equivalent serverless routes; v5 removed them entirely. Result: every Gatsby contact form today uses an external service. Splitforms is a drop-in replacement — same shape as Netlify Forms (POST to a URL), same shape as Formspree, but with 5× the free monthly submissions and built-in spam filtering.
Gatsby builds static HTML + JS that deploys to any host: Netlify, Vercel, Cloudflare Pages, AWS Amplify, S3 + CloudFront, Gatsby Cloud (sunset 2024 — migrate). The form posts cross-origin to splitforms regardless of host. Env vars exposed to the browser bundle must be prefixed GATSBY_ — anything else is undefined client-side. The key gets bundled into the JS at build time; lock it to your domain in the splitforms dashboard. For headless Gatsby + WordPress / Contentful setups, the form lives in the React tree, not the CMS — no special CMS wiring required.
GATSBY_ prefix required for env vars exposed at build time
Gatsby's webpack config only exposes process.env.* variables prefixed with GATSBY_. If you write process.env.SPLITFORMS_KEY, you'll get undefined in the browser bundle. Rename to GATSBY_SPLITFORMS_KEY — and accept that it's bundled into the static JS (lock the key to your domain in the splitforms dashboard).
Gatsby's <Link> can't wrap a form's submit handler
Gatsby's <Link> component prevents default navigation. If you wrap your form in <Link to="/thanks"> thinking the redirect will fire, it won't — the form's submit event runs, but the navigation is suppressed. Use a hidden redirect input on the form and let splitforms handle the 302.
SSR + client hydration mismatch on form initial state
If you use useState('idle') in your form and render any state-dependent UI on first paint, Gatsby's static HTML and React's client render can diverge — you'll see a hydration warning. Render the form unconditionally; only render status messages inside the handler-triggered branches.
Gatsby v5 partial hydration changed how forms hydrate
Gatsby 5 introduced partial hydration via React Server Components. If your form is in a Server Component, the onSubmit handler won't bind. Add 'use client' at the top of the file (or use a separate ContactForm.client.jsx).
Pattern A — React component (Gatsby v4/v5)
Standard React function component, useState for status. Drop into src/components/ContactForm.jsx and import on any page. Set GATSBY_SPLITFORMS_KEY in .env.production and .env.development. Use the same wiring for the contact form (with phone) fields on this page.
Pattern B — partial hydration (Gatsby v5)
Gatsby 5's partial hydration mounts only the components marked client-bound. Add 'use client' at the top of the form file so the onSubmit handler binds at hydration time; the rest of the page stays static. Use the same wiring for the contact form (with phone) fields on this page.
What every field actually does.
Each field below ships in the contact form (with phone) template — rename, remove, or add your own. Splitforms accepts any name you POST.
Full name
Greeting + dashboard label so submissions don't all read 'anonymous'.
Work email
Reply-to address — splitforms wires this so hitting reply goes back to the sender.
Phone
Faster qualification — phone leads convert ~3× higher than email-only on B2B forms.
Company
Lets you sort enterprise vs SMB inquiries before you reply.
What's this about?
Routes the lead to the right inbox folder or teammate.
Message
Free-text context — what the visitor actually wants you to know.
One backend. Every framework.
The same contact form (with phone) template works on every framework splitforms supports. Pick yours.
Contact Form (with phone) on Gatsby — FAQ.
Direct answers, no marketing fluff. Missing one? Email hello@splitforms.com.
splitforms vs everything else.
Same drop-in API. More free submissions, Starter signed webhooks, MCP support no other backend has.
Other ready-to-ship Gatsby forms.
Same backend, different qualifying fields. Click through to copy the snippet.
Ship a contact form (with phone) on Gatsby in 60 seconds.
500 submissions per month, free forever. No credit card. Copy the snippet above and paste it into your Gatsby project.