Aspose.Total Comparison is a very well-designed file comparison free online application that allows comparing different kinds of documents online with ease. The app is very easy to handle and can be used from any device supporting a modern browser like Chrome, Opera and Firefox. The Compare PDF, DOCX, XLSX, PPTX, VSDX, HTML, EPUB, RTF, XPS, ODT, ODP, and many more document formats. To compare the files online for free, first you need to upload document files and press the "COMPARE" button.