Convertio is described as '- Easy tool to convert files online. More than 45 different document, image, spreadsheet, ebook, archive, presentation, audio and video formats supported'. There are more than 25 alternatives to Convertio, not only websites but also apps for a variety of platforms, including Windows, Linux, Android and iPhone. The best alternative is File Converter, which is both free and Open Source. Other great sites and apps similar to Convertio are Format Factory (Free), CloudConvert (Freemium), Zamzar (Free) and Online Convert (Freemium).
eBook Conversion Tool works with various types of eBook formats. The application allows you easily convert djvu, epub, fb2, lit, oeb, lrf, azw, cbc and other eBook files to txt, pdf, pdb, rtf, and other formats.
FILExt is one of the oldest and most respected collections of file formats and file extensions. Over the past 20 years, more than 50 million users have found the right information and tools to open any file on their computer or smartphone.
Convert any image to AVIF, for free and in bulk, with the fastest converter online. No uploading, the magic happens in your browser. AVIF offers a significant reduction of file size compared to the current JPEG or WebP codec. Tutorials included!.
ConvertAPI is a fast and fault-tolerant web service used by software developers to convert Word documents, Excel spreadsheets, PowerPoint presentations, HTML documents, PDF files, and numerous other formats.