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Sonic Utilities
Editors
Utility Version OS Author Notes Download
Esrael Sonic Editor II 0.05 Win Esrael Level layout, object position, music playlist, level order and text editor for Sonic 1, Sonic 2 Beta, Sonic 2, Sonic 3 and Sonic 3K. Also has a number of other useful tools, including a tile editor for Sonic 2. LINK
ESE Conversor   Win Esrael Transplant Sonic 1 levels from a Sonic savestate to a Sonic 2 savestate. RAR
FixCheckSum   Win Esrael Fixes the checksum on any Megadrive or 32X game. RAR
SonED 0.50 Win Stealth Level and tile editor for Sonic 1, 2, 3K and CD. The level/object editor is very good, but the tile editor is a bit sluggish. Split
RAR(1)
RAR(2)
StealthPatch 1.4 Win Stealth Creates and applies IPS patches. Very quick and easy to use. RAR
Sonic HackingWiz Pro II 0.0013 Win Gerbil Edits pallets, text, playlists and other things for Sonic 1, 2, 3K, and Crackers. Converts to and from various ROM types. A very useful tool. Split
RAR(1)
RAR(2)
Gerbilsoft ROM Hacking Studio 0.02 Win Gerbil Edits pallets and other things. Split
RAR(1)
RAR(2)
Sonic QX 0.31
Build 15
Win Saxman Edits music in Sonic 2 Beta, and can even import some MIDI files into the game. Make sure you read the instruction document thoroughly. Split
RAR(1)
RAR(2)
Sonic Display Editor 0.70 DOS Saxman Edits positions of the rings, score, time and lives counters in Sonic 1 and 2. RAR
French
Source
Sonic R Save Editor 1.00 Win Saxman Edits Sonic R (PC) saves, giving you emeralds and hidden characters. Split
RAR(1)
RAR(2)
Sonic 2 Special Stage Editor   DOS Saxman Lets you view (but not edit) Sonic 2 special stages in a savestate. RAR
Sonic Sound Editor 0.02 DOS Saxman Edits music tempo for Sonic 1, imports WAV files to replace the "SEGA" sound for Sonic 1 & 2. RAR
Diet Sprite 1.0 Win x64 Object position editor for Sonic 1. RAR
Sonic CD PC Fix 1.3 Win S.O. Fixes the PC version of Sonic CD so that it works on Windows XP without crashing. Split
RAR(1)
RAR(2)
Sonic Tweaker 0.04 Win drx Edits demos, water, text and pallets for Sonic 1, 2, 2b, 3K and Chaotix. RAR
Sonic One Music Editor   Win Fuzzbuzz Edits instruments for Sonic 1. RAR
StH Scene Editor 1.00 Win LOst Savestate editor. Modifies properties of Sonic 1, 2, 3K savestates. RAR
LOst Library 3.05 Win LOst Mappings editor for Sonic 1, 2 and 3K. RAR
Sonic Text Editor 1.10 Win Overlord Text editor for various Megadrive games. Split
RAR(1)
RAR(2)
S2MP3 1.0 Win QJimbo Plays MP3s while Sonic 2 is running in Gens or Gens+. RAR
Chaotix Character Statistics Editor 1.0 Win Heran Bago Edits character properties in Chaotix (NTSC version only). RAR
Graphics Editors
HivePal Beta Win Leon Pallet editor for Sonic 1 and Sonic 2. RAR
PCXpal 4.0 Win Leon I wrote this one myself in Delphi. It extracts pallets from various types of image and pallet files and converts them to Tile Layer Pro, Jasc or raw Megadrive pallet files. RAR
Sonik Sprite 1.5 Win Beta Uncompressed sprite editor for Sonic 1, 2, 3 and Sonic & Knuckles. RAR
Sonik Sprite Remix   Win Beta New version of Sonik Sprite, with improved speed and the ability to edit compressed art. Only supports Sonic 1 so far. RAR
Tile Layer Pro 1.1 Win SnowBro Edits graphics tiles for many types of ROM, including Megadrive. RAR
Source
Tile Layer Pro (Bugfix Hack) 1.1 Win SnowBro This is a hacked version of TLP which opens *.BIN files properly. RAR
ChaoSax-Pal 0.29 Win Magus Pallet editor for all Sonic games. RAR
PalEd 1.02 Win Erik JS Pallet editor for all Megadrive games. RAR
Sonic Advance PalTool 1.00.
0011
Win Erik JS Pallet editor for GameBoy Advance games. RAR
Hex Editors
Hex Workshop 4.2 Win Breakpoint Software The best hex editor. LINK
Sniper Hex   Win Blue Hawk Has a relative searcher and binary bit editor. RAR
Viewers
Sega CD View 0.005 Win MERLiX View Sonic CD STM video files. RAR
Susie 0.45 Win   View Sonic Jam DG2 image files. Split
RAR(1)
RAR(2)
GSavestate 1.3 Win S.O. View the contents of Gens savestates. RAR
Source
PVR Viewer 0.99 Win S.O. View PVR files (Dreamcast graphics), extract images from PVM archives, export them to BMP/PNG/JPEG files. Split
RAR(1)
RAR(2)
S1SMS View   Win Magus View Sonic 1 (Master System) level tiles. RAR
ESE SS View 0.02 Win Esrael View Sonic 1 & Knuckles special stage layouts. RAR
Source
Compressors / Decompressors
MD Programs Pack   W32 Nemesis Collection of compressors/decompressors for Nemesis, Enigma and Kosinski formats. Also includes a decompressor for the Sonic 2 sound driver, and the Nemesis searcher. RAR
Source
Esrael Decompressor 2.00 Win Esrael Decompresses things in Nemesis and Kosinski formats. RAR
Esrael Compressor 1.00 Win Esrael Compresses things in Kosinski format. RAR
Sega Data Compressor 2.2 RC3 Win Magus Compresses/Decompresses things in Nemesis, Kosinski, Enigma & Saxman formats. ACE
KENS 1.4 RC3 Win Magus A set of DLLs which programmers can use in their own programs to compress/decompress things in Nemesis, Kosinski, Enigma & Saxman formats. ACE
Source
PRS Decompressor   W32 Nemesis Decompresses Dreamcast and Saturn PRS files. RAR
PRS Compressor   W32 Nemesis Compresses PRS files. RAR
PVM Unpacker   W32 Nemesis Unpacks Dreamcast PVM files. RAR
Sonic Adventure DX DAT Sound Unpacker   DOS Sanik Unpacks SADX (PC) DAT sound files. RAR
Source
Sonic Adventure DX DAT Sound Packer   DOS Sanik Packs SADX (PC) DAT sound files. RAR
Source
Sonic Heroes TXD Unpacker   DOS Sanik Unpacks Heroes (PC) TXD graphics files. RAR
Sonic Heroes TXD Packer   DOS Sanik Packs Heroes (PC) TXD graphics files. RAR
Sonic Heroes ONE Unpacker   W32 Lightning Hedgehog Unpacks Heroes (PC) ONE archives. RAR
Sonic Heroes ONE Packer   W32 Lightning Hedgehog Packs Heroes (PC) ONE archives. RAR
Assemblers / Disassemblers
SNASM68K 2.02 W32 Cross Products Assembles Motorola 68000 asm files. RAR
Cheating / Trainers
Sonic Heroes Demo (PC) Trainer   Win Link Modify RAM values in real time, such as the number of rings you have etc. RAR
Source
Sonic Heroes Full Version (PC) Trainer   Win Link Modify RAM values in real time, such as the number of rings you have etc. RAR
Mac Utilities
SMD2BIN   Mac   Converts ROMs from SMD to BIN format. SIT
IPS Patcher   Mac   Applies IPS patches to ROMs. SIT
N.B. - W32 means the program is Win32, so it opens in a DOS-style command prompt window.