Pretty Diff

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Pretty Diff
Developer(s) Austin Cheney
Initial release March 3, 2009; 8 years ago (2009-03-03)
Written in JavaScript
Platform Web platform
Type Data comparison, prettification, minification
License CC0
Website prettydiff.com

Pretty Diff is a language-aware data comparison[1][2] utility implemented in JavaScript. The online utility is capable of source code prettification, minification, and comparison of two pieces of input text. It operates by removing code comments from supported languages and then performs a pretty-print[3] operation prior to executing the diff algorithm. An abbreviated list of unit tests is provided.[4] The documentation[5] claims the JavaScript pretty-print operation conforms to the requirements of JSLint.

As Pretty Diff is written entirely in JavaScript, the application executes in a web browser or on command line using a stand-alone JavaScript interpreter, such as Node.js.

As of 23 March 2016 Pretty Diff stated it would abandon NPM in response to a list of disagreements.[6] On 18 April 2016 in parallel to the release of Pretty Diff version 2.0.0. the NPM package is updated to artificial version 99 where it is effectively locked into version 1.16.37.[7][8]

The source code is published at the Pretty Diff GitHub repository.[9]

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