Who should use Duplicate Killer?

Duplicate Killer is a B2B product built for wordPress and WooCommerce site owners.

Does Duplicate Killer have a free plan?

Yes — Duplicate Killer is free to use.

What platforms does Duplicate Killer run on?

Duplicate Killer runs on the web.

Is Duplicate Killer still maintained?

Unverified. Duplicate Killer has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

Who develops Duplicate Killer?

Duplicate Killer is developed by NIA.

How long has Duplicate Killer been around?

Duplicate Killer first shipped in 2022.

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Duplicate Killer

Name: Duplicate Killer
Author: NIA

wordpress.orgForms, surveys & polls

Duplicate Killer is a WordPress plugin that blocks duplicate form submissions by validating unique email, phone, and text fields. It also prevents accidental duplicate orders in WooCommerce, providing server-side protection without requiring CAPTCHA.

FreeWebCloud-managed

Visit wordpress.org

Overview

5 features

Duplicate Killer sits in PulseGate's Forms, surveys & polls category. It focuses on preventing duplicate form and order submissions on WordPress and WooCommerce sites without using CAPTCHA. Duplicate Killer is a B2B product aimed at wordPress and WooCommerce site owners. Duplicate Killer costs nothing to use. Duplicate Killer is available on the web.

NIA builds and maintains Duplicate Killer, and it first shipped in 2022. Key capabilities include duplicate submission blocking, wooCommerce support, and unique field validation.

Summary written by a language model from the project’s public pages.

Duplicate submission blocking
WooCommerce support
Unique field validation
No CAPTCHA required
Server-side protection

Built with & integrations

Runs on

BrowserCloud-managed

Trust & compliance

Verified signals

HTTPSPrivacy PolicyFree tier

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed29 Jun · 11:30 UTC
Listing verified against its public source
Source: PulseGate · Open

Frequently asked questions about Duplicate Killer

What does Duplicate Killer do?: Duplicate Killer focuses on preventing duplicate form and order submissions on WordPress and WooCommerce sites without using CAPTCHA. It is catalogued under Forms, surveys & polls on PulseGate.
Who should use Duplicate Killer?: Duplicate Killer is a B2B product built for wordPress and WooCommerce site owners.
Does Duplicate Killer have a free plan?: Yes — Duplicate Killer is free to use.
What platforms does Duplicate Killer run on?: Duplicate Killer runs on the web.
Is Duplicate Killer still maintained?: Unverified. Duplicate Killer has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
Who develops Duplicate Killer?: Duplicate Killer is developed by NIA.
How long has Duplicate Killer been around?: Duplicate Killer first shipped in 2022.

At a glance

Pricing: Free
Platforms: Web
Languages: English
Built for: WordPress and WooCommerce site owners
Model: B2B
Solves: Preventing duplicate form and order submissions on WordPress and WooCommerce sites without using CAPTCHA.

Registered as

WordPress.org: duplicate-killer

Developer

NIA

Index record

Indexed: 29 Jun 2026
Lifecycle: Alive
Last seen: 29 Jun 2026

Identity audit (12)

Slug: duplicate-killer-prevent-duplicate-form-submissions-wordpress-org
Lifecycle last checked: 8 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 29 Jun 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Canonical URL: https://wordpress.org/plugins/duplicate-killer

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