Apigee - Intelligent and complete API platform
GitBook - Modern Publishing, Simply taking your books from ideas to finished, polished books.
Koofr - Koofr offers safe EU based cloud storage with free storage space for life and options to connect multiple cloud accounts (Dropbox, Google Drive, OneDrive) and your personal storages.
MkDocs - Project documentation with Markdown.
MultCloud - Multiple Cloud Storage Manager: Migrate, move, sync, copy, backup and transfer cloud files with MultCloud, which supports Dropbox, Box, Google Drive, Mega, OneDrive and FTP, etc.
Docusaurus - Easy to maintain open source documentation websites