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I am seeking a tool to make a DIFF between tables displayed in HTML tables - typically tables with identical layout, filled only with numbers, the numbers differing from on version to another.

Raw diff tool at the HTML level aren't readable enough for my purpose. I am rather seeking something in the spirit of TableTools but with DIFF support.

Does anyone know a solution for that?

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does the operating system matter? – akira Jan 5 '10 at 16:23
Well, not really, as long it's Windows :-) – Joannes Vermorel Jan 8 '10 at 10:51
@akira: No it doesn't, they also have a Linux version. – Quandary Jun 12 '13 at 8:21
up vote 1 down vote accepted

Beyond Compare is by far the best visual diff tool for Windows. It is not free, but not expensive. From the website: "Compare .csv data or HTML tables in a Data Compare session"

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