the simple & elegant file-sharing solution.
Secure open source file sharing for businesses.
See also: https://github.com/linagora/linshare
Share files with your clients from your own server. Open source, free software.
Send push notifications to your phone or desktop using PUT/POST.
ntfy (pronounce: notify) is a simple HTTP-based pub-sub notification service. It allows you to send notifications to your phone or desktop via scripts from any computer, entirely without signup or cost. It's also open source (as you can plainly see) if you want to run your own.
Your self-hosted, globally interconnected microblogging community.
Mastodon is a free, open-source social network server based on ActivityPub where users can follow friends and discover new ones. On Mastodon, users can publish anything they want: links, pictures, text, video. All Mastodon servers are interoperable as a federated network (users on one server can seamlessly communicate with users from another one, including non-Mastodon software that implements ActivityPub)!
Coroot is a monitoring and troubleshooting tool for microservice architectures.
Open Source Intercom Alternative.
Streamline communication with your customers.
Coordinate and reply to messages over chat, email, Slack, and SMS. A privacy-focused, open-source alternative to Intercom, Drift, and Zendesk.