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.
- Contact Form 7
- Elementor Pro Forms
- Forminator
- GravityForms
- HTML Forms
- WPDiscuz
- WPForms
- WP-Members
- WordPress Login, Register, Password reset
- WordPress Comments
- WooCommerce
- Custom HTML (with a short code
[altcha]
)
The plugin supports the Floating UI but with known limitations:
Currently the Floating UI does not work with:
- Forminator with multi-step forms
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
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.
GPLv2