Start with unlimited forms, 500 monthly submissions, uploads, and one signed webhook. When traffic grows, collect 10,000 submissions for $12 per month while keeping your existing HTML and frontend design.
Side by side
Both products accept normal HTML form posts and manage submissions without your own server. The meaningful differences appear in endpoint limits, production-volume pricing, when files and webhooks unlock, and whether your workflow values FormBackend's live MCP server.
| Decision point | Form Plume | FormBackend |
|---|---|---|
| Free forms and submissions | Unlimited forms · 500 submissions / month One account can cover several live sites and campaigns. | 1 form · 50 submissions / month The separate Free hosted builder allows unlimited hosted submissions. |
| 10,000-submission plan | $12 / month Unlimited forms, 10 GB of files, and two-year retention. | $50 / month Business includes 10,000 submissions and 10 GB of files. |
| Unlimited custom forms | Included on every plan Free and Pro do not meter the number of endpoint-backed forms. | Business plan Simple includes 2 forms and Freelancer includes 10. |
| File uploads | Included on Free 100 MB on Free and 10 GB on Pro | From $5 / month Simple includes 250 MB; uploaded files appear in the dashboard. |
| Webhook automation | 1 signed webhook on Free Pro includes unlimited signed webhooks for authenticated delivery. | Webhook from $5 / month Posts each new submission to a configured URL; Discord gets a tailored payload. |
| Integration reach | Native routes plus three automation ecosystems Zapier, Make, MindCloud, native apps, and any signed webhook destination | 1,000+ apps Highlights eight destinations, with several connections facilitated through Zapier. |
| Spam protection | Layered filtering with recoverable quarantine Four CAPTCHA choices, domain controls, rate limits, email hygiene, blocklists, and adaptive scoring | Honeypot, domain allowlist, and three CAPTCHA choices Supports Turnstile, hCaptcha, and Google reCAPTCHA; blocked-domain and email validation are marked coming soon. |
| API and AI-assistant access | API access on Pro Build custom submission workflows with the Form Plume API. | REST API plus a live remote MCP server Five MCP tools can list, create, and update forms or read submissions. |
Where Form Plume pulls ahead
FormBackend keeps its lowest paid tier inexpensive, but the number of forms and included volume change sharply across plans. Form Plume gives every project unlimited endpoints and puts more production capacity into one predictable upgrade.
FormBackend Free allows one custom endpoint, Simple allows two, and Freelancer allows ten. Form Plume keeps forms unlimited on Free and Pro, so landing pages, contact forms, applications, and client sites can grow inside one account.
Both products publish a 10,000-submission tier with 10 GB of file storage. Form Plume Pro is $12 per month, while FormBackend places that allowance on its $50 Business plan.
FormBackend unlocks file uploads and standard webhooks on its $5 Simple plan. Form Plume includes 100 MB of uploads and one cryptographically signed webhook on Free, so a real workflow can be tested before billing starts.
Choose by situation
Agency maintaining forms across client sites
Form Plume
Unlimited endpoints avoid counting forms across accounts, while Pro pools 10,000 submissions for $12 per month.
Small site needing autoresponses for $5
FormBackend
Its Simple plan has the lower minimum paid price and includes autoresponses, Zapier, and a webhook.
Team managing forms from Claude or Cursor
FormBackend
Its documented remote MCP server can already inspect submissions and create or update forms through an AI assistant.
Growing product with signed downstream workflows
Form Plume
A signed webhook starts on Free, and Pro combines unlimited signed destinations with much larger volume and broad app routing.
FAQ
Form Plume is a strong FormBackend alternative when one account needs to serve several websites, campaigns, or client projects. Every Form Plume plan supports unlimited forms, while FormBackend lists one custom form on Free, two on Simple, and ten on Freelancer.
FormBackend Free provides one custom form, 50 monthly submissions, 10 monthly spam submissions, a customizable thank-you page, and exports. Form Plume Free provides unlimited forms, 500 monthly submissions, 60-day retention, 100 MB of file storage, and one signed webhook.
FormBackend has the cheaper entry price: Simple costs $5 per month for 1,000 submissions and two forms. Form Plume becomes the much stronger value at production volume, providing 10,000 submissions and unlimited forms for $12 per month versus FormBackend Business at $50.
Usually, yes. Create a Form Plume endpoint, replace the FormBackend URL in the form action, preserve your named fields and multipart encoding, then test the success path, uploads, notifications, spam behavior, and integrations before disabling the old endpoint.
Form Plume includes 100 MB of file storage on Free and 10 GB on its $12 Pro plan. FormBackend starts uploads on Simple with 250 MB and reaches 10 GB on its $50 Business plan. Both accept multipart HTML forms and display uploaded files with their submissions.
FormBackend documents posting each submission to a configured URL, but its public webhook guide does not describe a signature-verification scheme. Form Plume signs webhook deliveries so the receiving application can verify that a payload genuinely came from Form Plume.
FormBackend advertises connections to more than 1,000 apps and highlights Zendesk, Sheets, Slack, Discord, Twilio, Airtable, Mailchimp, and Notion, with several routes using Zapier. Form Plume combines native destinations, Zapier, Make, MindCloud, and arbitrary signed webhooks for broader long-tail routing.
Both support honeypots, origin restrictions, Turnstile, hCaptcha, and Google reCAPTCHA. Form Plume adds layered rate controls, manual blocklists, email hygiene, adaptive scoring, and recoverable quarantine so suspicious submissions can be reviewed instead of disappearing permanently.
Yes. FormBackend documents a REST API and a remote MCP server with tools for listing, creating, and updating forms and reading submissions. That live MCP integration is a genuine strength when form administration from Claude or Cursor is central; Form Plume Pro provides API access for custom workflows.
The Form Plume alternatives hub compares hosted form backends using consistent criteria such as free allowances, production pricing, uploads, retention, spam controls, integrations, and automation. Review the Form Plume feature overview as well before moving a live endpoint.
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