ALTCHA for WordPress

This repository contains the offical ALTCHA plugin for WordPress.

ALTCHA offers a free, open-source Captcha alternative, ensuring robust spam protection while respecting user privacy and GDPR compliance.

Read more about ALTCHA: https://github.com/altcha-org/altcha

Website: https://altcha.org

WordPress Plugin Directory: https://wordpress.org/plugins/altcha-spam-protection/

Tip

ALTCHA is now available in the WordPress Plugin Directory. You can easily install it directly from your WordPress installation.

Having troubles? Please report in Issues.

Supported Integrations

Contact Form 7
Elementor Pro Forms
Forminator
GravityForms
HTML Forms
WPForms
WordPress Login, Register, Password reset
WordPress Comments
Custom HTML (with a short code [altcha])

Floating UI

The plugin supports the Floating UI but with known limitations:

Currently the Floating UI does not work with:

Forminator with multi-step forms

Installation

In your WordPress installation, search for "altcha" in the plugin directory and click Install. Alternatively, install the plugin manually:

Download the .zip from the Releases.
Upload altcha folder to the /wp-content/plugins/ directory
Activate the plugin through the 'Plugins' menu in WordPress
Review the settings and enable the your integrations

REST API

This plugin requires the WordPress REST API. If you are using any "Disable REST API" plugins, ensure that the endpoint /altcha/v1/challenge is allowed.

License

GPLv2