Offers both a standalone download as well as an online service for encoding PHP scripts. Site features testimonials, commercial partners and support through request tickets and a forum. [Commercial, Free trial]

Obfuscation and encryption for PHP files. Offers customizable constants, Zend extension support and encrypted IP addresses and domain names. Website includes upgrade information, testimonials, and loaders for supported platforms. [Commercial, Demo ava...

Formerly known as Zend Encoder, protects PHP applications for secure deployment without exposing the source code. Website details additional products, certifications and a developer zone. [Commercial]

Converts PHP source code into unreadable bytecodes for Windows, Linux and Mac OS X. Website also includes full documentation and free loaders for supported platforms. [Commercial, Free trial]

Open source PHP and JavaScript obfuscator featuring renamings, concatenations comment deletions. Code no longer being maintained. Website offers advantages and disadvantages, debugging tips and sample usage. [Open Source, GPL]

Offers a free PHP obfuscator for Windows. Contains sample code, developer and support information as well as information about the design company. [Open Source, GPL]

Obfuscates PHP code as well as the HTML output. Supports password protection, IP restriction, and the setting of expiry dates. Website also offers FAQs, demos, and a detailed explanation on how the encryption is performed. [Commercial, Free trial]

Online PHP encoder with client management and licensing system. Knowledge base includes online support, user manual, sample code, and a demonstration of use. [Free for personal/non-commercial]

Commercial tool that obfuscates PHP source code, making it difficult to understand. Features a command line and visual interface. Website includes product news, other commercial services and additional software for a variety of languages. [Commercial,...

Obfuscates PHP code while providing full control over the obfuscation process. The software obscures strings and removes whitespaces and comments. Featured in the website are screen shots, sample obfuscations, FAQs and contact information. [Commercial]