You can convert files that are as large as 50 MB. Input Formats: CSV, DJVU, DOC, DOCX, EML, EPS, KEY, KEY.ZIP, MPP, MSG, NUMBERS, NUMBERS.ZIP, ODP, ODS, ODT, PAGES, PAGES.ZIP, PDF, PPS, PPSX, PPT, PPTX, PS, PUB, RTF, TXT, VSD, WKS, WPD, WPS, XLR, XLS, XLSX, and XPS Output Formats: CSV, DOC, HTML, MDB, ODP, ODS, ODT, PDF, PPT, PS, RTF, TIF, TXT, XLS, XLSX, and XML It also supports document to MP3 conversion, meaning it functions as an online text-to-speech tool. Several image formats are also supported as output options for many types of files, as is the SWF video format. Zamzar will work with any operating system that supports a web browser, such as all versions of Windows, Linux, and macOS. All you need to do is upload the file to the site from your computer, a URL, or a file storage site like Dropbox or OneDrive. Input Formats: DOCX, DOC, HTML, HTM, MHT, MHTML, ODT, RTF, PAGES, EPUB, FB2, MOBI, PRC, EML, TXT, WPD, WP, WPS, PDF, CSV, JPEG/JPG, BMP, GIF, PCX, PNG, PNM, PSD, RAS, TGA, TIF, and WBMP Output Formats: DOC, DOCX, HTML, ODT, PDF, RTF, TXT, and XML You can add whole folders full of files or just choose specific files that you want to be converted. Up to three right-click menus can be added to Windows Explorer. What this does is let you right-click a file and convert it quickly without having to first open the Doxillion program. This program is said to run on Windows 11, 10, 8, 7, Vista, and XP, plus macOS 13 through 10.5. Input Formats: PDF, DJVU, DJV, EPUB, DOCX, DOC, ODT, ODP, RTF, HTM, HTML, MHT, TXT, PPT, PPS, PPTX, PPSX, XPS, TIF, TIFF, PRC, MOBI, AZW, and FB2 Output Formats: PDF, DOCX, DOC, JPEG, TIFF, GIF, PNG, HTML, MHT, ODT, RTF, EPUB, FB2, and MOBI Depending on the output format you choose, there are a number of customizations you can tweak if you want to. For example, when converting a file to PDF, you can add a watermark and even merge PDFs into one file or extract pages from a PDF. However, when converting to an eBook format, there’s an option to save the cover image and embed fonts. This program was designed to run on Windows 11, 10, 8, 7, Vista, and XP. Input Formats: CHM, CSV, DOC, DOCM, DOCX, DOTX, HTM, HTML, HTMLZ, JSON, ODG, ODP, ODS, ODT, OTG, OTP, OTS, OTT, PDF, POT, POTX, PPT, PPTM, PPTX, RTF, SDA, SDC, SDW, SNB, STC, STI, STW, SXC, SXD, SXI, SXW, TXT, TXTZ, XHTML, XLS, XLSM, XLSX, XLT, XLTX, and XPS Output Formats: CSV, DOC, EPS, HTML, ODG, ODP, ODS, ODT, OTG, OTP, OTS, OTT, PDF, POT, PPT, RTF, SDA, SDC, SDW, STC, STI, STW, SXC, SXD, SXI, SXW, TXT, VOR, XHTML, XLS, and XLT It also accepts several image formats as inputs and outputs but does not act as an OCR tool. There are also several input formats we listed above that don’t export to every output format. We like how simple it is to use FileZigZag, and on top of that, it can convert large document files (really large documents are supported if you pay). Much like Zamzar, this site can be used from any web browser on any operating system. Unfortunately, it seems to be down for us every so often when we try to use it, which is why it’s at the bottom of this list.