PRODUCTION SYNC FOR MOBILE APPS

Couchbase Sync Gateway

Sync Gateway is the self-hosted sync engine for Couchbase Mobile. Architect star, hierarchical, or hybrid topologies with bidirectional replication, conflict resolution, and granular access built in.

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Sync you can bet the business on

Production-grade replication, security, and scale for cloud-to-edge-to-device deployments. No custom sync stack to build or maintain.

Automatic bidirectional sync

Move data between cloud, edge, and device without custom code. Networks pause and resume without losing state or context.

Sicherheit auf Unternehmensniveau

RBAC, standard and custom auth, and end-to-end encryption meet the compliance bar in regulated industries.

Scale to millions of devices

Add nodes horizontally across a shared-nothing architecture. Tune read and write scaling to match your traffic.

Accurate conflict resolution

Version-vector handling resolves competing writes across time zones and clock-skewed clients.

What is Sync Gateway?

The self-managed sync engine for Couchbase Mobile. It moves data between Couchbase Server, Couchbase Edge Server, and Couchbase Lite on every device.

See Docs

Sync data securely across every tier of your architecture: Couchbase Server or Capella in the cloud, Couchbase Edge Server at the edge, and Couchbase Lite on each device. Compose star, hierarchical, peer-to-peer, or hybrid topologies from one set of components.

Access and manage data over the web with secure RESTful APIs. Webhooks push change events to external clients, data stores, and downstream pipelines, so Sync Gateway plugs into the systems already running your business.

Enforce read and write access from the scope and collection level down to individual users and roles. Sync functions provide programmable document-level routing and access control. The Admin REST API is authenticated by default, with support for OIDC, LDAP, and custom providers.

Scale horizontally to serve millions of connected devices. Tunable read and write options match performance to load. Sync Gateway-to-Sync Gateway Replication (ISGR) enables multi-tier deployments without custom middleware, so tiers grow independently.

KUNDENGESCHICHTEN

Sync at real-world scale

100%

uptime for onboard ship operations

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16M

Kunden

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30K

frontline sales app users

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Deploy sync everywhere your data lives

See how Sync Gateway connects cloud, edge, and device without custom replication code.

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CAPABILITIES

One sync engine for every deployment topology

Move data between server, edge, and device on your terms, with the security and scale enterprise apps demand.

  • Automatic
  • Sicher
  • Skalierbar
  • Accurate

Bidirectional sync from cloud to edge devices. Features smart-pause when the network drops and auto-resumes when it returns.

Everything you need to run sync in production

Bidirectional replication

Sync changes in both directions between cloud, edge, and device. Networks pause, resume, and reconnect without data loss.

  • Edge sync
  • Multi site

ARCHITEKTUR

Device to cloud and back

Couchbase Lite is a fully-featured embedded database that sits on each device (whether it is mobile, IoT, or desktop), and can sync data bidirectionally. Document changes can be pulled from Couchbase Server through Sync Gateway (or the managed version, App Services) to the device and pushed back.

See The Docs

PREFER FULLY MANAGED?

Sync as a managed service

Capella App Services delivers Sync Gateway as a fully hosted and managed backend. Same sync engine, same security model, no servers to operate. Run it as a service when you want speed to production, or self-host Sync Gateway when you need control over the environment.

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Deployment options for Sync Gateway

SELF-MANAGED

Sync-Gateway

Self-hosted sync engine connecting Couchbase Server to Couchbase Lite and Edge Server. Build any topology: star, hierarchical, hybrid. Includes bidirectional replication, conflict resolution, routing, and access control. No custom sync code. No maintenance overhead.

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FULLY MANAGED

App-Dienste

Fully managed Sync Gateway deployment integrated with your Capella database. Same-VPC architecture with automatic infrastructure provisioning, load balancing, and security. Eliminates operational overhead while ensuring resilient data sync for Couchbase Mobile clients.

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Sync Gateway FAQ

Quick answers about Sync Gateway’s conflict resolution, delta sync, authentication, and how it compares to Capella App Services.

Sync Gateway is a self-managed synchronization server that enables secure, bidirectional data sync between Couchbase Server and mobile, IoT, and edge apps running Couchbase Lite.

Sync Gateway includes customizable conflict resolution policies, letting you define how conflicting changes from different devices are detected, merged, or resolved automatically.

Yes. Sync Gateway’s built-in delta sync transmits only changed data rather than full documents, reducing bandwidth consumption and improving sync performance on constrained networks.

Sync Gateway supports OpenID Connect, OAuth 2.0, Basic, and custom authentication providers, plus granular role-based access control at the document and field level.

Sync Gateway is self-managed and deployed on your own infrastructure. Capella App Services is the fully managed, hosted equivalent – same sync capabilities, no servers to operate.

Keep exploring

  • Couchbase Mobile datasheet

    The full stack: Server, Sync Gateway, Edge Server, Lite.

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    Edge computing examples and benefits.

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