Downloading OneHighlighter 1.1.1 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. This free Mac app was originally produced by Xavier Decuyper. OneHighlighter for Mac lies within Developer Tools, more precisely IDE. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
OneHighlighter is a simple application that lets you highlight code for pasting into other apps like OneNote or Pages. All you need to do is copy the code to your clipboard, open OneHighlighter, and paste your code somewhere else. The utility supports code highlighting for various languages.
You may want to check out more Mac applications, such as HexDecBin, wxFormBuilder or Ch, which might be similar to OneHighlighter.