Based on our record, File-Extensions.org seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
File-extensions.org lists following files for .3 extension:. Source: about 1 year ago
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
FileProInfo - It's All About Files, Software, Online Tools - 100% Free
Supabase - An open source Firebase alternative
FileInfo.com - FileInfo is the central file extensions registry and contains a database of over 10,000 file types.
Etebase - Etebase makes it easy to build end-to-end encrypted applications by taking care of the encryption and its related challenges.
FILExt - Open, view and convert files online