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What are names The apps to programming HTML and C#
2 Answers
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Visual Studio (IDE) serve both and all Microsoft Technologies
https://www.visualstudio.com/vs/community/
if u looking for Code Editor(light weight) go fo Visual Studio Code
https://code.visualstudio.com
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ehm...they're too different :D
For web I guess best now :
brackets/sublime +FF Dev Edition browser
(just don't use it for browsing i-net,it's just dev tool...you can,but that's dumb)
For c# ...someone else will answer :D