Xdeltagui

| Tool | Type | Key Difference | | :--- | :--- | :--- | | | CLI | The original; more scripting-friendly. | | UniPatcher | GUI (Android) | Specialized for ROM patching (xDelta, IPS, PPF). | | Delta Patcher | GUI (Windows) | Similar to xDeltaGui but with a different UI and some additional features for game modding. | | Patch Maker (ROM hacking tools) | GUI | Often includes xDelta support alongside IPS, UPS, etc. | | BSDiff / Courgette | CLI | Used by Google Chrome for smaller updates but less common for general use. |

: Modifies an original file (source) using a .xdelta patch file to produce a new, modified file. xdeltagui

: Click "Open" next to Source File and select your clean, original ROM or ISO. | Tool | Type | Key Difference |

is a wrapper program that provides a visual interface for this tool, so users do not have to type complex command-line commands to apply or create patches. | | Patch Maker (ROM hacking tools) |