Airform is described as 'What if you could use a service that gives you full control over the form, yet doesn’t require you to use anything on your server? Airform gives you the ability to create functional HTML forms without thinking about servers'. There are more than 25 alternatives to Airform for a variety of platforms, including Online / Web-based, SaaS, Slack, FormKeep and Facebook. The best alternative is Paperform. It's not free, so if you're looking for a free alternative, you could try Formspree.io or Getform. Other great apps like Airform are Form2chat (Freemium), FormSubmit (Free), Formbox (Paid) and Basin (Freemium).
Form backend for receiving submissions directly to the chat platforms: Telegram, Viber, Messenger, Slack, etc. Just copy your URL, and update your form's action attribute. No library, no CSS override, no iframe, nothing else is needed. Works with AJAX too.
Formbox helps (front-end) developers and website builders to attach a back-end to their HTML form in no time. It will take care of making sure form-entries are securely stored, backed-up and e-mailed to you!
Nobody likes writing server side code for web forms. Basin saves you development time so you can start collecting form submissions right away with no backend coding required. Works great with WordPress and static site generators like Jekyll, Middleman, and Hugo.
FormBucket gives you a hosted endpoints for your static site forms. Your markup, your CSS. We take care of the rest. You can redirect users to any URL, send autoresponder emails and add unlimited webhooks.