Software Alternatives, Accelerators & Startups

Submit JSON

Submit JSON notifies you via email, webhooks, and Slack when POST-ing data to an endpoint. It's simple API is great at handling form submissions and notifying you when a new user signs up, for example.

Submit JSON Alternatives

The best Submit JSON alternatives based on verified products, community votes, reviews and other factors.
Latest update:

  1. Just send your form to our URL and we'll forward it to your email.

    /formspree-io-alternatives
  2. Contact forms for static websites without PHP or Backend server

    /web3forms-alternatives
  3. Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

    Try for free Open Source freemium

    Try for free
  4. Build custom forms without the engineering lift.

    freemium $4.0 / Monthly (Basic plan - 1 project, 3 forms, 250 submissions, 250MB storage)

    /basin-alternatives
  5. Connect your form to our form endpoint and we’ll email you the submissions. No PHP, Javascript or any backend code required.

    free

    /formsubmit-alternatives
  6. Smart form endpoints. The modern way to build the form backend.

    freemium $9.0 / Monthly

    /getform-alternatives
  7. Collect submissions for your HTML forms easily!

    paid Free Trial

    /formbackend-alternatives
  8. Form backend for converting your leads before it’s too late

    /form2chat-alternatives
  9. Form handling and automation for static sites

    /formbucket-alternatives
  10. Developer friendly marketing tools

    freemium

    /herotofu-alternatives
  11. A digital Swiss Army Knife for Small Businesses

    paid Free Trial AU$24.0 / Monthly

    /paperform-alternatives
  12. A desktop vacuum former that's quicker than 3D printing

    /formbox-alternatives
  13. Form endpoints for designers and developers

    /formkeep-alternatives
  14. Make your HTML <form> completely functional under a minute without a single line of backend code.

    /formcarry-alternatives
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