Who should use Really Simple CAPTCHA?

Really Simple CAPTCHA is an open-source project built for wordPress plugin developers and site owners.

Is Really Simple CAPTCHA free?

Yes — Really Simple CAPTCHA is free to use.

What platforms does Really Simple CAPTCHA run on?

Really Simple CAPTCHA runs on the web and embeddable surfaces. It can also be self-hosted.

Is Really Simple CAPTCHA still active?

Unverified. Really Simple CAPTCHA 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.

What are alternatives to Really Simple CAPTCHA?

Similar projects tracked by PulseGate include Really Simple CAPTCHA for cformsII, Simple Captcha for WPForms, and WordPress plugin.

Who makes Really Simple CAPTCHA?

Really Simple CAPTCHA is developed by Rock Lobster Inc.

When did Really Simple CAPTCHA launch?

Really Simple CAPTCHA first shipped in 2009.

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Really Simple CAPTCHA

Name: Really Simple CAPTCHA
Author: Rock Lobster Inc.

wordpress.orgWebsite firewall, bot & spam protection

Really Simple CAPTCHA is a WordPress plugin module that other plugins can call to generate and validate CAPTCHA challenges. It stores CAPTCHA images and answer files as temporary files rather than using PHP sessions, helping avoid conflicts in WordPress integrations.

FreeWebEmbeddableSelf-hosted

Visit wordpress.org

Overview

5 features

In the Website firewall, bot & spam protection space, Really Simple CAPTCHA takes a focused approach. It focuses on adding basic CAPTCHA protection to WordPress forms and plugins without PHP session conflicts. Really Simple CAPTCHA is an open-source project aimed at wordPress plugin developers and site owners. Really Simple CAPTCHA is free to use. It ships for the web and embeddable surfaces, and it can be self-hosted.

Behind Really Simple CAPTCHA is Rock Lobster Inc., and it first shipped in 2009. Among its 5 catalogued features are CAPTCHA generation, image challenges, and answer validation. The interface is available in 4 languages, including English, Spanish, and Japanese.

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

CAPTCHA generation
Image challenges
Answer validation
Temporary file storage
PHP session-free

Built with & integrations

Runs on

BrowserEmbeddableSelf-hosted

Trust & compliance

Verified signals

HTTPSFree tierMulti-language

Indexing history

What PulseGate has recorded for this listing

Indexed31 Aug · 09:26 UTC
Really Simple CAPTCHA verified against its public source
Source: PulseGate · Open

Frequently asked questions about Really Simple CAPTCHA

What does Really Simple CAPTCHA do?: Really Simple CAPTCHA focuses on adding basic CAPTCHA protection to WordPress forms and plugins without PHP session conflicts. It is catalogued under Website firewall, bot & spam protection on PulseGate.
Who should use Really Simple CAPTCHA?: Really Simple CAPTCHA is an open-source project built for wordPress plugin developers and site owners.
Is Really Simple CAPTCHA free?: Yes — Really Simple CAPTCHA is free to use.
What platforms does Really Simple CAPTCHA run on?: Really Simple CAPTCHA runs on the web and embeddable surfaces. It can also be self-hosted.
Is Really Simple CAPTCHA still active?: Unverified. Really Simple CAPTCHA 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.
What are alternatives to Really Simple CAPTCHA?: Similar projects tracked by PulseGate include Really Simple CAPTCHA for cformsII, Simple Captcha for WPForms, and WordPress plugin.Really Simple CAPTCHA for cformsII Simple Captcha for WPForms WordPress plugin
Who makes Really Simple CAPTCHA?: Really Simple CAPTCHA is developed by Rock Lobster Inc.
When did Really Simple CAPTCHA launch?: Really Simple CAPTCHA first shipped in 2009.

At a glance

Pricing: Free
Platforms: Web
Languages: English, Spanish, Japanese, Dutch
First seen: 31 Aug 2026
Built for: WordPress plugin developers and site owners
Model: Open source
Solves: Adding basic CAPTCHA protection to WordPress forms and plugins without PHP session conflicts.

Registered as

WordPress.org: really-simple-captcha

Developer

Rock Lobster Inc.

Index record

Indexed: 31 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 31 Aug 2026

Identity audit (13)

Slug: really-simple-captcha-wordpress-org
Lifecycle state recorded: 31 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 31 Aug 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Recorded source: taxonomy-pass-a.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 31 Aug 2026
Canonical URL: https://wordpress.org/plugins/really-simple-captcha

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