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.
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
Sync-in launched on Product Hunt on April 30th, 2026 and earned 78 upvotes and 3 comments, placing #23 on the daily leaderboard. 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 was featured in Open Source (68.4k followers), Storage (7.2k followers) and GitHub (41.2k followers) on Product Hunt. Together, these topics include over 32.3k products, making this a competitive space to launch in.
Who hunted Sync-in?
Sync-in was hunted by Johan. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Sync-in stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Johan
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.