This free online tool converts your PNG images to TIFF format, applying proper compression methods. Unlike other services, this tool does not ask for your email address, offers mass conversion and allows files up to 50 MB.
Click the UPLOAD FILES button and select up to 20 .png images you wish to convert. You can also drag files to the drop area to start uploading.
Download the results either file by file or click the DOWNLOAD ALL button to get them all at once in a ZIP archive.