What is FormPlume used for?

FormPlume is a form backend for plain HTML forms: point the form at one endpoint and it filters spam, stores submissions, emails you and routes data to Slack, Sheets and webhooks. It is a good fit for adding a working contact form to a static site and sending form entries to Slack or a mailing list.

Yes. FormPlume has a free plan, and paid plans start at $12 per month.

Is FormPlume open source?

No. FormPlume is proprietary (closed-source) software and can't be self-hosted. In the Forms & Surveys category, open-source options include Airform, Form.io and Formbricks.

What are some alternatives to FormPlume?

FormPlume competes with Formspree, Formspark and Formcarry.

FormPlume: features, pricing and alternatives

About FormPlume

Form Plume replaces the backend work behind a contact form. You create a free endpoint, paste its URL into the form's action and it handles what follows: receiving and validating the request, layered spam filtering, email notifications and routing, a searchable submissions inbox and delivery to other tools. Plain HTML works and JavaScript is optional.

Submissions can go to your inbox, Slack, Discord, Google Sheets, ActiveCampaign or Mailchimp, with signed webhooks for anything else, retries and plan limits handled for you. The site lists a build-it-yourself comparison covering API routes, CAPTCHA, email providers, databases and admin screens, and it also mentions building with AI agents. The free plan includes 500 submissions a month with no credit card, and Pro starts at $9 a month.

Key features

One public endpoint for any HTML form
Layered spam filtering
Email notifications and routing
Searchable submissions inbox
Slack, Discord, Sheets and Mailchimp integrations
Signed webhooks with retries

Good fit for

Adding a working contact form to a static site
Sending form entries to Slack or a mailing list

Tags: form-backend; html-forms; spam-filtering; webhooks; static-sites; email-notifications; developer-tools

FormPlume: questions and answers

What is FormPlume used for?: FormPlume is a form backend for plain HTML forms: point the form at one endpoint and it filters spam, stores submissions, emails you and routes data to Slack, Sheets and webhooks. It is a good fit for adding a working contact form to a static site and sending form entries to Slack or a mailing list.
Is FormPlume free?: Yes. FormPlume has a free plan, and paid plans start at $12 per month.
Is FormPlume open source?: No. FormPlume is proprietary (closed-source) software and can't be self-hosted. In the Forms & Surveys category, open-source options include Airform, Form.io and Formbricks.
What are some alternatives to FormPlume?: FormPlume competes with Formspree, Formspark and Formcarry.