Meld is the best diffing tool

Part of developer's life is about comparing changes made to the code.

To that end, I've tried a number of visual diff-ing tools, ediff, vimdiff, kdiff3, kompare but none beats Meld.

 Usability is where Meld trumps the competition:

• Use of curved lines and color highlighting to show different types of changes.
• Works with pretty much every source control system there is.
• Does directory diffs really well.
• Has both 2-way and 3-way compares.
• Has syntax highlighting, line numbers.
• Works from command line.
• ... and more

Here are the two ways I use meld all the time:

To see changes you made to your code base:

meld .

To see changes between checkout subversion trunk/ and branch/

meld path_to/trunk path_to/branch

You can also use meld as a parameter to --diff-cmd for your source control client.

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With either fink or macports you can get it on Mac.

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If you use it and like it please DONATE to help out the developers.