I still keep Notepad++ around on my Windows machines because of the all the plugins. I regularly use the JSTool (for Javascript/JSON), MIME tools (for Base64 a

I still keep Notepad++ around on my Windows machines because of the all the plugins. I regularly use the JSTool (for Javascript/JSON), MIME tools (for Base64 and URL encode/decode) and Markdown++ plugins. There is also a NppCalc calculator app.