A “full-feature-parity version of Notepad” has been written in x86 assembly and it weighs in at just 2,749 bytes. Windows legend Dave W. Plummer is (inevitably) the coder behind this efficiency tour de force, and he’s made RetroPad available (code and exe) on his GitHub under the Apache 2.0 license. I managed to get RetroPad, my full-feature-parity version of Notepad from XP, down to 2686 bytes of tight x86 assembly. I checked in the exe to make life simpler, so you don't need masm on hand!Episode coming shortly... follow so you don't miss it!Code:… pic.twitter.com/l1LudreFQr June 4, 2026 Plummer announced this latest release of RetroPad on Thursday, describing it as a feature-for-feature match of the version of Notepad that shipped with Windows XP . That’s impressive enough in 2.7KB, rather than an app of about 65KB. However, Plummer’s work rate is such that he’s since added optional line numbers and a dark mode.…