ImageCool Converter vs Zamzar API

ImageCool Converter is a Windows desktop application for batch conversion, processing, and viewing of image files. It imports more than 500 formats and exports more than 100 formats on its product page, while the free plan exports six formats. Batch tools convert image formats to PDF and PDF files to more than 130 image formats. Processing modules handle framing, splitting, cropping, combining, watermarking, renaming, and resizing. The feature list includes 40 filters and 12 effects, such as color balance, flipping, rotation, and reflection. The application supports alpha channels in 32-bit PNG and ICO files, transparency in GIF, PNG, and ICO, and multipage TIF and GIF files. It can package pictures or PDFs into a standalone EXE slideshow, and files can be dragged onto a floating Convert Now button. The free plan costs nothing. ImageCool Converter costs $9.95, paid once and adds 500+ formats, batch conversion, and nine processing modules. Listed Windows versions include 7, 8, 10, Vista, and XP.

Zamzar API is a REST-based HTTP service for adding file conversion to mobile, web, or desktop applications. It supports more than 1,100 conversion types across documents, video, images, audio, eBooks, CAD, 3D, and compressed files. Files can come from a user's machine or be reachable through HTTP, FTP, SFTP, or Amazon S3. Zamzar says its cloud service can handle demand from one file to 10,000. Developers can use official Java, PHP, and Python SDKs, plus code samples for C#, cURL, Node.js, and other languages. The free Test plan costs nothing, requires no card, and includes 100 credits, a 1 MB maximum file size, one-day file storage, and a three-day support response. Paid plans start at $25 /month. Successful conversions use at least one credit, and unused monthly credits do not roll over. Zamzar describes the API as a conversion service, not a CDN; converted files should be retrieved through the API. Accounts include free sandbox testing subject to file-size and job-count limits.