Keep Comment — Detects the first comment block in each file and preserves it at the beginning of the output. Useful for retaining copyright notices or license headers.

JS Header Text — Inserts custom text at the beginning of every output file (e.g., a version stamp or build identifier).

Lock Domain / Date — Restricts the obfuscated code so it only runs on a specific domain or before a certain date. If the condition fails, the original logic is never executed.

Dead Code Insertion — Injects non-executing code between original statements to increase complexity and output size, making the code harder to read.

Mixed Server Code — Experimental support for ASP/PHP server-side code embedded in JavaScript files. Not recommended for most use cases.