Project Summary
This project is a complete level editor for New Super Mario Bros in C#, originally written by Treeki, and now maintained by Treeki and Dirbaio. It allows level and file editing, and more features to come.
It was open sourced so that other people could also contribute to the editor and to adding new features.
FeaturesLevel editing (Objects, sprites, entrances, paths, views, zones, options, raw data) File importing/exporting (with decompression) ROM patching Editing tools such as a sprite finder, zooming, minimap and more Full graphics support Configurable sprite data editor Full tileset editor, able to import and export tileset graphics Multiple windowed interface English and Spanish translations LinksOfficial forum: http://jul.rustedlogic.net/forum.php?id=11
In a Nutshell, nsmb-editor...
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took an estimated 10 years of effort (COCOMO model)
starting with its first commit in September, 2009
ending with its most recent commit over 8 years ago
Quick Reference
GNU General Public License v3.0 or later
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Use Patent Claims
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
Include Install Instructions
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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30 Day SummaryJun 28 2025 — Jul 28 2025
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12 Month SummaryJul 28 2024 — Jul 28 2025
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