Sync-in
Sync-in: An open-source file platform for teams that want self-hosted storage and desktop sync. Ranked #15 of 30 in Self-Hosted Cloud Storage Software by our editors (7.3/10); pricing: Free plan; best for teams wanting desktop sync and collaborative workspaces.
At a glance
- Editor score7.3 / 10
- PricingFree plan
- Best forTeams wanting desktop sync and collaborative workspaces
- Free planYes
- Paid fromFree
- File sync clientsBoth
- Facts checked25 Oct 2026
Where it wins
- Personal and collaborative spaces with fine-grained permissions and file locking
- Desktop synchronization clients for Windows, macOS, and Linux
- Office editing, identity, and diagram integrations, including Collabora Online and LDAP
Where it doesn't
- Operating the platform requires infrastructure chosen and managed by the operator
- Collaborative editing depends on integrations such as Collabora Online or OnlyOffice
- The server operator must configure the upload limit; it is not a fixed plan allowance
Our verdict on Sync-in
Sync-in is an open-source platform for storing, sharing, synchronizing, and collaborating on files on infrastructure chosen by its operator. Individuals, businesses, public-sector entities, and institutions can organize files in personal and collaborative spaces, with access through a web interface or desktop synchronization clients for Windows, macOS, and Linux. It fits teams that want control over their file environment alongside shared workspaces, rather than a storage service operated entirely by a provider.
Its collaboration features combine sharing with users, groups, and guests, including share links, with fine-grained permissions and file locking. Comments, activity tracking, favorites, and full-text search support day-to-day work with files; search can use optional indexing. Collaborative editing is provided through integrations with Collabora Online, OnlyOffice, Euro-Office, or draw.io, rather than being described as a standalone editing suite. LDAP and OpenID Connect are available for identity integration, and SMTP is also supported. This mix makes Sync-in a fit for organizations connecting file storage to existing identity or office-editing tools, provided they are prepared to operate the surrounding services.
The project describes Sync-in as free and open source. The server upload limit is configurable by the operator, with a documented default of 5 GB, so the limit depends on how the server is configured rather than a fixed plan allowance. That flexibility comes with operational responsibility: the organization chooses and manages the infrastructure. Sync-in is a stronger fit for teams that want self-hosting, desktop sync, and collaborative spaces; teams seeking a provider-managed service or an all-in-one editing environment should consider alternatives better aligned with that model.
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Sync-in pricing
Sync-in fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Deployment options | Self-hosted |
| File sync clients | Both |
| File versioning | Not verified |
| Collaborative editing | Yes |
| Maximum file size | Not verified |
| Deployment | Cloud, Self-hosted, Desktop, Mobile |
| Platforms | Web, Windows, macOS, Linux |
| Support | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 7 integrations: Collabora Online, OnlyOffice, Euro-Office, draw.io, LDAP, SMTP … |
| Pricing | Free plan |
| Website | sync-in.com |
| Facts checked | 25 Oct 2026 |
Sync-in integrations
Sync-in lists 7 integrations on its own site.
- Collabora Online
- OnlyOffice
- Euro-Office
- draw.io
- LDAP
- SMTP
- OpenID Connect
Alternatives to Sync-in
- Nextcloud FilesOpen-source file sync and sharing with self-hosting and organizational controls.9.3
- SeafileSelf-hosted sync and collaboration with desktop, mobile, and virtual-drive access.9.1
- ownCloudA flexible file platform with self-hosted and hosted options for organizations.9.0
See all Sync-in alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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