Because we can't continually be reinventing the wheel, like all software Rubberduck builds on top of the work and knowledge of many other people.


Rubberduck (and this website) uses the Fugue icon pack, and custom icons made with SharpDevelop icons.

Fugue Icons

©2012 Yusuke Kamiyamane, all rights reserved. Licensed under Creative Commons Attribution 3.0 license.


©2014 SharpDevelop Team. Licensed under MIT.

Software & Libraries

Rubberduck would have been simply impossible without these tools.


©2012 Terence Parr and Sam Harwell, all rights reserved. Licensed under The "BSD 3-clause license".


©2017 Daniel Cazzulino and Contributors. Licensed under MIT.


©2009 Christoph Husse, ©2012 Justin Stenning. Licensed under MIT.


© AvalonEdit Contributors. Licensed under MIT.

WPF Localization for RESX

© Grant Frisken. Licensed under CPOL, with author’s permission to re-distribute under GPLv3.

Smart Indenter

(wayback machine)

© Office Automation Ltd. Original VB6 source code relicensed under GPLv3 for Rubberduck Contributors.

Special thanks to Stephen Bullen and Rob Bovey.


JetBrains ReSharper Since the project’s early days, JetBrains’ Open-Source team has been supporting Rubberduck with free OSS licenses for all core contributors - and we deeply thank them for that. ReSharper has been not only a tool we couldn’t do without; it’s been an inspiration, the ultimate level of polished perfection to strive for in our own IDE add-in project. So just like you’re missing out if you write VBA and you’re not using Rubberduck, you’re missing out if you write C# and aren’t using ReSharper.

Rubberduck is not a JetBrains product. JetBrains does not contribute and is not affiliated to the Rubberduck project in any way.


Microsoft, Windows, Microsoft/Office 365, Excel, Access, Word, PowerPoint, Visual Basic for Applications, Visual Studio, Most Valuable Professional (MVP) Award logo, as well as other Microsoft products, services, and registered trademarks, are the property of Microsoft Corporation. Microsoft is a registered trademark of Microsoft Corporation in the United States and/or other countries.

JetBrains, ReSharper, and the ReSharper (R#) logo are registered trademarks of JetBrains s.r.o.

All other trademarks are the property of their respective owner.