Sync-in is an open-source platform to store, sync, and share files while keeping full control of your data. Self-hosted and privacy-first, it’s lightweight and fast, combining secure file management with real-time collaboration, granular permissions, and cross-device sync. Built for teams that need sovereignty, security, and flexibility, without compromising performance.

Sync-in is a lightweight, file-focused alternative to Nextcloud, built on 10+ years of development, recently open-sourced, and designed for simplicity, performance, and fast deployment.

Try the demo: https://sync-in.com/docs/demo

It combines secure file sharing, collaborative workspaces, desktop sync, WebDAV access, and real-time document editing through ONLYOFFICE or Collabora.

Built for teams, developers, homelabs, and organizations that want a private cloud alternative without giving up collaboration.

What you can do with Sync-in:

– Store and share files from your own infrastructure

– Collaborate in shared workspaces with fine-grained permissions

– Edit documents with Onlyoffice or Collabora Online

– Sync files across devices with desktop clients

– Access files via WebDAV and third-party tools

– Use OIDC/SSO, LDAP, MFA, recovery codes, and app passwords

– Search deeply inside documents with full-text indexing

– Protect files with quotas, locking, permissions, and activity tracking

– Deploy on-premise or in a private cloud

No proprietary storage.

No cloud lock-in.

Just open-source collaboration around your files.

Hi! Is there an API to handle share link creations?

@moritz_dsc Hi! Yes, absolutely, the product is designed with an API-first approach, so you can fully manage share link creation programmatically.