Maybe it's old fashioned, but I try to spell things correctly. I don't always succeed, so I rely on tools to help.
Sometimes I'll copy+paste source code into Microsoft Word, but that's an act of true desperation because there are so many false positives for keywords, variables, syntax, and the like. So I wrote a simple tool to reduce the noise:
Granted, it's still not ideal, but it is quick and painless and filters out most of the noise. I scan for red squiggles, update the code, and get on with life, feeling better about myself for the effort. :)
CSharpStringExtractor Runs on .NET. Dependencies via NuGet. Roslyn for parsing. Wildcard matching includes subdirectories.
It's pretty much the same tool, just for a different language.
So I created a GitHub repository with the complete code for both tools: StringExtractors
PS - Pull requests for other languages are welcome. :)