Submit JSON

HTML form backend and submission API with instant notifications

About Submit JSON

Submit JSON handles storage and notifications for HTML form submissions on static sites and landing pages, delivering each submission via email, integrations and webhooks. It doubles as a notification API for POST requests, works with 20+ frameworks and includes endpoint security and CAPTCHA spam protection.

Submit JSON website preview

Live preview of submitjson.com via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Submit JSON: strengths & things to check

Strengths

Free tier available — you can start without paying (freemium model).
Covers form backend, api, notifications, static sites — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

The full feature set sits behind a paid plan — check which limits the free tier carries on the official site before committing.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 1164 tools in the Developer Tools category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

Submit JSON pricing

Pricing model	Freemium — a free tier lets you start, and paid plans are available if you need more.
Free access	Yes — free tier, paid upgrades available
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	submitjson.com

Submit JSON key facts

Category: Developer Tools
Pricing: Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas: form backend, api, notifications, static sites
Official site: submitjson.com

Submit JSON FAQ

How much does Submit JSON cost?

Freemium — a free tier lets you start, and paid plans are available if you need more. Current plans and prices are listed on the official site (submitjson.com).

What is Submit JSON used for?

HTML form backend and submission API with instant notifications Its focus areas in the Developer Tools category: form backend, api, notifications, static sites.

Where can I try Submit JSON?

On its official site, submitjson.com — the Visit Official Site button above goes straight there.

Submit JSON vs alternatives

	Submit JSON	FormBackend	Forminit	Formspark
Pricing	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas	form backend, api, notifications, static sites	form backend, html forms, api, webhooks	form backend, api, headless, submissions	form backend, form to email, spam filtering, api
Official site	submitjson.com	formbackend.com	forminit.com	formspark.io
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Developer Tools category

Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 1164 tools. Alongside Submit JSON, it includes Noodl, WebGazer, PingWise, RealUptime.

FreemiumDeveloper Toolsform-backendapinotificationsstatic-sites

Alternatives to Submit JSON

Tools in the same Developer Tools category that share focus areas with Submit JSON — worth comparing before you commit:

Developer Tools

FormBackend

Form backend for HTML forms with no server code

Freemiumform-backendhtml-formsapiwebhooks

Developer Tools

Forminit

Headless form backend API, formerly Getform

Freemiumform-backendapiheadlesssubmissions

Developer Tools

Formspark

Form to email service for HTML forms with no backend code

Freemiumform-backendform-to-emailspam-filteringapi

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HeroTofu

Form endpoints and backend for static sites with no server code

Freemiumform-backendform-endpointsstatic-sitesspam-protection

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Web3Forms

Contact form to email API service with no backend code

Freemiumform-backendcontact-formsapiemail

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Action1

Developer infrastructure, handled

Freemiummonitoringdeploymentapiinfrastructure

More in Developer Tools

Comparing tools in the Developer Tools category? These related listings are worth a look: Noodl — Open-source low-code platform for building full-stack apps visually; WebGazer — Uptime monitoring and status pages for websites, APIs and cron jobs; PingWise — Quorum-based uptime monitoring that only alerts when probes agree.