dsync moves data between databases and other stores through one-time migrations or continuous replication. After an initial copy, it can watch for source changes and update the destination. The open source edition runs as a single binary on a laptop, VM or Docker container. Connectors include MongoDB, Cosmos DB, DynamoDB, AWS DocumentDB, PostgreSQL, S3 and CSV files; several other connectors are in preview or development. Integrity checks range from namespace counts to complete hash-based verification, and an interrupted initial copy or change-capture flow can resume from saved state. Progress is available through a CLI and a web page on the machine running dsync. Adiom says the tool does not store data and supports network encryption. Transformations can use external processes connected over gRPC. dsync does not replicate source DDL statements or indexes. With a metadata store for resumability, the open source edition has a 16 MB read-plan cap. Enterprise adds horizontal scalability, observability and transformations, and is described as suited to production use cases from 100 GB to 100 TB and beyond.
Who it is for
dsync is intended for engineers and DevOps teams at enterprises and fast-growing companies. It may suit teams planning database migrations or ongoing replication who can work with its available connectors and deployment options.
What is good
- Supports one-time migrations and continuous replication.
- Can resume copies from saved state.
- Offers count-based and hash-based integrity checks.
- Runs as a single binary in several environments.
- Supports transformations through external gRPC-connected processes.
What to know first
- Does not replicate source DDL statements or indexes.
- Open source read plans have a 16 MB cap with metadata-store resumability.
- Several connectors are still in preview or development.
Verdict
dsync offers migration, change capture, verification and resumability with a self-hosted open source edition. Check connector status and the DDL, index and read-plan limits against your data workflow.
dsync plans and pricing
All plansCompared on database replication software
- Free plan
- Yes
- Change data capture
- Yes
- Replication direction
- one-way
- Deployment options
- self-hosted
- Supported databases
- MongoDB; Cosmos DB RU (MongoDB API); Azure Document DB; Cosmos DB NoSQL; DynamoDB; HBase; AWS DocumentDB; AstraDB; Cassandra; CouchDB/IBM Cloudant; Firestore; PostgreSQL; SQL Server; Oracle; DB2; Weaviate; Qdrant; S3 Vector Index; S3 Storage; File
- Data transformations
- Yes
