There are numerous GUI diff tools, such as meld, kdiff3, kompare and others. However, it seems that all of these expect to get the input files and compare them, rather than allowing you to supply your own difference, from another source, and displaying that.

Are there diff viewers which accept .diff outputs of the actual diff utility?


  • GUI (not text mode)
  • OS: supports GNU/Linux
  • Gratis
  • Free software
  • I'm not sure what you want - Do you only have the diff file? The diff + the original? Jan 28, 2016 at 14:56
  • @MichaelKohne: For the sake of discussion, I have just the diff file.
    – einpoklum
    Jan 28, 2016 at 16:49
  • Although I might also have one of the versions, and the diff, but not the other one. It's just not what I asked about.
    – einpoklum
    Jan 28, 2016 at 16:50
  • I've never actually seen such a tool. If you have the original and the diff, then you could apply the diff (using patch), and then use a visual diffing tool to compare the before and after versions. FAR from ideal, I agree. Jan 28, 2016 at 17:34

1 Answer 1


It's not great, but if you use an editor with syntax coloring, you could at least make the diffs EASIER to read. This is what Notepad++ produces on Windows, as an example of what's possible:

enter image description here

  • It's not that I don't appreciate the suggestion, but obviously an editor is what I've been doing for lack of a more appropriate tool. (Well, either that or colordiff).
    – einpoklum
    Jan 28, 2016 at 17:43

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