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Free Form Spam Protection Checker

Paste your form HTML to see whether it has a honeypot, a real HTTPS endpoint and other basic spam defences. Get fixes you can apply in minutes.

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Form spam protection checker

No account needed

The pasted HTML is inspected in a detached template. It is never displayed as a live form.

Run a check to see specific findings and fixes.

How to use this tool

  1. Paste the HTML of the form that is getting spam.
  2. Run the check to see which defences are present and which are missing.
  3. Add a honeypot or tighten field types, then connect a backend that filters submissions.

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Frequently asked questions

Form spam protection checker
questions.

Why does my form get spam even with required fields?

Bots post directly to the form action and ignore browser validation. Server-side filtering and a honeypot check stop them; required attributes alone do not.

Do I need a CAPTCHA?

Usually not for a contact form. A honeypot plus backend filtering catches most spam without making visitors solve puzzles.

Is anything I enter saved or sent to Form Koi?

No. Everything you type or upload stays in this browser tab and is processed locally. Copy or download anything you want to keep before leaving the page.

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