HEATKEYS

Diff Checker is a free online diff tool that gives you the text differences between two blocks of text.

Text Compare! is an online diff tool that can find the difference between two texts. Just paste and compare.

Text Comparison - Compare Strings online using Text_Diff at TextDiff.com

PrestoSoft award-winning products include ExamDiff Pro, a visual tool for text and binary file and directory comparison, and FtpVC, a serverless version control system.

DiffNow lets you compare text files, documents, binary files, and archives up to 2048KB in size. You can either upload the files you wish to compare or enter their URLs. Results are returned as an interactive HTML report.

WinMerge is an Open Source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.

UltraEdit text editor, the world

Pretty Diff tool can minify, beautify, or diff between minified and beautified code. This tool can even beautify and minify HTML.

Diff and merge files directly in Sublime Text 2 and 3. Supports Git and SVN to compare files with their other revisions.

Powerful file compare and folders synchronization utilities: Synchronize It!, Compare It!

Easily spot the differences in text and image files. Review changes in seconds with the world

Web based online compare text tool and find differences with this free web page. New, original & powerful method. Choice of comparing at level of whole lines (paragraphs, sentences), words or characters.