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This is a list of utilities that can be used for ROM hacking in general. For FF6 (SNES) specific utilities, please visit the utility page of the FF6 section. For FF6 Advance utilities (GBA ROM), check this utility page.
| Name | Short Description | Creator | Download link |
| HxD | Good general/all purpose hex editor. |  | Download |
| Windhex32 | ROM hacking hex editor with table support. | Bongo | Download |
| Crystatile2 | ROM hacking hex editor with many features. | | Download |
| Name | Short Description | Creator | Download link |
| YY-CHR (C++) | General tile editor. Has more feature than the .NET build. | yy | Download |
| YY-CHR (.NET) | General tile editor. The .NET build is more recent than the C++ one. | yy | Download |
| SNESpal | Palette editor for SNES ROMs. | Yousei | Download |
| Name | Short Description | Creator | Download link |
| SNES9x 1.51 Debugger | A complete GUI debugger. Current version is Mark-10-R2 | Geiger | Download |
| bass v.14 | Command line SNES assembler. | byuu | Download |
| xkas 0.06 | Command line SNES cross assembler. | byuu | Download |
| xkas+ 14.1 | Fork of xkas that add syntax support and improve things. | Revenant | Download |
| Asar | SNES assembler based on xkas. | Alcaro | Download |
| DUDE | 65816 GUI disassembler. | Drakkhen | Download |
| bsnes-plus 0.73-3a | Fork of bsnes-classic with new debugging features and improvements | Revenant | Download |
| Name | Short Description | Creator | Download link |
| Patch-Text | Utility to edit data and do hex editing. | m06 | Download |
| Beat | Good BPS Patcher. | Alcaro | Download |
| Floating IPS | BPS and IPS Patcher. | Alcaro | Download |
| XDeltaUI | XDelta patching utility. | KaioShin | Download |
| Lunar IPS | PS patches. | FuSoYa’s Niche | Download |
| IPS Patch Creator | Python patcher. | NPCnextdoor | Download |
| Rompatcher.js | IPS / UPS / APS / BPS patcher hosted on ff6hacking.com | Marc Robledo | RomPatcher.js |
| Patch Conflict Finder | Find conflicts between two or more patches. | Zephyr | Download |
| Lunar Expand | ROM expansion utility. | Fusoya's Niche | Download |
| SNEStuff | All in one ROM expander, IPS and ASM patcher. | spel werdz rite | Download |