Download Securimage

Securimage is on GitHub. Grab the ZIP, clone the repo, or pull it in with Composer. GPL-licensed.

GitHub (Recommended)

Latest stable release:

Download from GitHub →

Or clone:

git clone https://github.com/dapphp/securimage.git

Composer

composer require dapphp/securimage

Requirements

• PHP 7.2+ (PHP 8.x fully supported)
• GD extension with FreeType support (for TTF fonts)
• Sessions enabled (stores the expected code server-side)

Run server_test.php in a browser to check your setup.

Audio CAPTCHA Files

Audio CAPTCHAs need WAV files that aren't bundled in the main download. Grab them from the GitHub releases page and drop them into your Securimage directory.

WordPress Plugin

There's a Securimage-WP plugin in the WordPress plugin directory.

License

Securimage is GPL-licensed. Use it, modify it, ship it — but derivative works stay GPL. The LICENSE file has the full text.

Getting Started

• Quickstart Guide — add Securimage to a form in minutes
• Customizing Securimage — change colors, fonts, and difficulty
• FAQ — troubleshooting and common questions