Submit JSON vs FormKeep
Choosing the right form backend

Submit JSON vs FormKeep


A quick summary

When comparing these two products, the main differences that stand out are cost, plan limits, and overall design philosophy.

FormKeep's starter plan starts at $5/month with 1,000 total submissions and 1 single form. Compare that to Submit JSON's $5/month plan that sports a submission limit of 2,500 and 10 form endpoints. FormKeep has the audacity to charge per additional form, starting at $5 per form per month!

Regardless, it's another Formspree clone. Can't you tell by the name? FormKeep's HTML-first approach is their greatest strength, and also their greatest weakness.

In comparison, Submit JSON's API-first approach is more secure, versitile, and aligned with modern web development best practices.

Which is the best form backend for you? We think the answer is obvious, but we'll let you decide.

Compare pricing and features

Submit JSON
Free submission limit25050
Basic submission limit2,500 @ $5/month1,000 @ $5/month
Pro submission limit10,000 @ $15/month10,000 @ $19/month
Number of endpoints (pro plan)Unlimited10
JavaScript (TS) Client SDK
Data storage
Data export
Search submissions
Linked Emails
Free endpoint security
API key security
Restricted domains
Honeypot fields
Slack app
Zapier integration
reCAPTCHA integration
Cloudflare Turnstile integration
hCaptcha integration
We're biased, but honest

When to choose FormKeep, and when Submit JSON?

Submit JSON
  • Greater value - Submit JSON's $5/month plan has 2.5 times the amount of submissions than FormKeep's $5/month plan
  • Go beyond form submissions - Submit JSON is not only a form backend, it doubles as a powerful notification API
  • Plays nice with JS frameworks and TypeScript projects. FormKeep, not so much.
  • We cannot recommend this product in good faith. They charge per form and don't offer anything to justify the price.
  • Maybe consider if you are not technical and are afraid of things like JavaScript
Made for pros pushing to production

Why developer teams prefer Submit JSON

Submit JSON FAQs

Frequently asked questions

Is it easy to migrate from FormKeep to Submit JSON?
Do I need a credit card to sign up?
How can I talk to someone about Submit JSON?
Why is Submit JSON so affordable?
How does Submit JSON stand out against other form backends?
When should I switch to Submit JSON?

Get notified in 5 minutes

Submit JSON delivers your submissions via email, integrations, and webhooks. Set up takes less than 5 minutes.