POBS works by replacing user-defined function names, variables and constants with a MD5 key of 8 characters. POBS writes new "encrypted" source code files and doesn't need a decripter.

Online php encoder that allows developers to encrypt php scripts. Integrated licensing system securely locks scripts to any domain or IP address. Free for personal and non commercial use.

PHP Encryption software that protects your php and html code from spying eyes, code stealers, and software piracy.

Encoding your product allows you to protect your source code and apply licensing to restrict access. At EncoderCompare.com, you can evaluate several encoder products.

SourceGuardian for PHP is the most comprehensive and user-friendly code protection solution on the market. A free 7-day trial is available.

PHPAudit is a full featured PHP software distribution solution for independent software vendors and PHP developers. PHPAudit automates the distribution of your code from new orders to product download & licensing.

Coderun PHP Encoder will encode the php pages to be human unreadable.

iono allows you to sell your software on a per license basis to protect against piracy.