Web3Forms

Web3Forms is a hosted form backend. A form on a static site posts its fields to the vendor’s endpoint with an access key, and the submission is sent to the email address that issued the key. The site needs no server code: the installation guide shows an HTML form whose action points at the endpoint, and the same fields can be posted from JavaScript.

The reserved field names set the subject, reply-to address, CC address, redirect and spam checks, and a submissions API is documented separately. The paid features include captchas, file attachments, webhooks and domain restriction, and the dashboard holds the settings for them.

Worth knowing

Server-side submissions need a paid plan and a whitelisted server address, according to the API reference. The FAQ says the service does not store form submissions, and that it runs on servers in the United States. The service is a subsidiary product of Web3Creative, a registered business based in Kerala, India.