GrandTexTool - A txd tool

GrandTexTool is a powerful on-device editor for mobile game texture files. Browse, preview, export and replace textures without having a computer.

Features
• Browse texture databases, IMG archives and RenderWare TXD files
• Supports up to 4 gigabyte databases (for TexDB)
• Fast grid/list texture browser with live search, sorting and thumbnails
• Preview textures fullscreen with a transparency checkerboard
• Export textures to PNG or raw, and import your own images back in
• Automatic re-encoding to the correct format (DXT1/DXT5, ETC, PVR, uncompressed) with optional mipmaps
• Extract, replace, add, rename and delete entries inside IMG archives
• Create new texture databases from your own images
• Edit per-texture streaming and rendering properties
• Material You design with Light, Dark and AMOLED Black themes, custom fonts and layout options
• Bulk import/export and multi-select for fast batch editing

Safe editing:
GrandTexTool automatically backs up files before rewriting them, and confirmation prompts protect against accidental changes. All editing happens locally on your device — nothing is uploaded.

Optional Shizuku support:
By default the app uses Android's standard folder access (Storage Access Framework), and you choose exactly which folder it can access. For advanced users, optional Shizuku integration allows direct access to raw file paths. This is entirely opt-in, requires you to set up and authorize Shizuku yourself, and is only used to read and write the files you point it at.

GrandTexTool works only with files you already own on your device and does not include or distribute any third-party content.