* Better option exists

** Not recommended for non-vanilla hack. Make backup before proceeding!

ACTIVE DEVELOPMENT
Michael’s Foundry Level Editor	https://github.com/mchlnix/SMB3-Foundry/releases
Michael’s Scribe Map Editor **	https://github.com/mchlnix/SMB3-Foundry/releases
YY-CHR Graphics Editor	https://w.atwiki.jp/yychr/pages/1.html
Notepad++	https://notepad-plus-plus.org/downloads
DEPRECATED TOOLS
Never-Obsolete’s Title Screen Editor	https://www.romhacking.net/download/utilities/654
Beneficii’s Map Editor	https://www.romhacking.net/download/utilities/242
Hukka’s Level Editor *	https://www.romhacking.net/download/utilities/298
SMB3 Text Editor **	https://www.romhacking.net/download/utilities/281
SMB3 Palette Editor **	https://www.romhacking.net/download/utilities/347
SMB3 Music Inserter **	https://www.romhacking.net/download/utilities/1705
DISASSEMBLY
Captain Southbird’s Disassembly of Super Mario Bros. 3 (NES)	https://github.com/captainsouthbird/smb3