FileProInfo.com is the file information database of over 15,000+ file types, software, free online apps/tools, so tools, guest blogs, videos, and images.
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Everything about files, software and free online tools.
Found great information about file extensions, software and also found the relative free online tools.
Screenshot Bin - Generate website screenshots and thumbnails at scale, right from your app. Screenshots as a service.
Convertio - File Conversion in the Cloud
Headers.me - Create social cover images that get you followers
File-Extensions.org - Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.
Slickr - Powerful cover image generator for your Hashnode blog
FileInfo.com - FileInfo is the central file extensions registry and contains a database of over 10,000 file types.