Apps similar to Meld for OSX include WinMerge, which is free and open source. Other options are Meld, Beyond Compare, KDiff3 and P4Merge. Diff Tools like Meld for OSX are a crowded field, with more than 50 alternatives for Windows, Mac, Linux, the web and self-hosting.
dwdiff is a diff program that operates at the word level instead of the line level. It is different from wdiff in that it allows the user to specify what should be considered whitespace, and in that it takes an optional list of characters that should be considered delimiters.
DiffALL compares any two media files and pinpoints every difference. Upload expected and actual — video, audio, images, subtitles (SRT/VTT), or text/JSON — and get a similarity score in seconds.
Diffract is a purpose-built desktop diff tool that handles far more than plain text. A single app compares text, binary (hex view), images, PDFs, Word documents, Excel spreadsheets, ZIP/tar archives, and Git commits - all in a multi-tab interface.
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Online Text compare is a browser based data compare tool that highlights the differences between two versions.
