ownCloud vs Syncthing: What are the differences?
ownCloud: Open source self-hosted web apps with sync clients and sharing. It is an open source, self-hosted file sync and share app platform. Access & sync your files, contacts, calendars & bookmarks across your devices. You decide what happens with your data, where it is and who can access it; Syncthing: *Open Source Continuous File Synchronization *. It is a continuous file synchronization program. It synchronizes files between two or more computers and replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the internet.
ownCloud and Syncthing belong to "File Storage" category of the tech stack.