Iso Tool 131 Pspiso 【WORKING – 2026】

For years, the Sony PlayStation Portable (PSP) has remained a beloved handheld console, not just for its official library, but for its robust homebrew scene and ISO capabilities. Among the numerous tools developed by the community, stands out as a crucial utility for managing, patching, and modifying PSP ISO and CSO files directly on the console. Version 1.31 (often referred to as ISO Tool 131 or 1.31 pspiso) is regarded as one of the most stable and feature-rich iterations of this software.

At its core, ISO Tool was designed to decrypt, convert, and patch PSP game ISOs (International Organization for Standardization disc images) directly on the PSP's memory stick, eliminating the need for a personal computer. Key features included: iso tool 131 pspiso

in the root of your memory stick (the very first screen when you open it on a PC). Running the Tool: For years, the Sony PlayStation Portable (PSP) has

: Tap the execution button to open the operations menu, then select the conversion protocol (e.g., ISO -> CSO or CSO -> ISO ). At its core, ISO Tool was designed to