6 source databases supported

Migrate to
Neon

Neon is serverless PostgreSQL with branching, so a NoSQL migration can land in a branch, get validated, and merge without touching production. NoSQLSync connects with your Neon connection string and applies the standard PostgreSQL type mapping.

Start migrating free →
Neon is PostgreSQL. Connect it as a PostgreSQL target using your Neon connection string — every PostgreSQL type mapping below applies unchanged.

Choose your source database

Every path below includes bulk load, live CDC, and automatic type mapping into Neon.

Cosmos DB → Neon
Live CDC · Auto schema mapping · Zero downtime
Cassandra → Neon
Live CDC · Auto schema mapping · Zero downtime
Couchbase → Neon
Live CDC · Auto schema mapping · Zero downtime
MongoDB → Neon
Live CDC · Auto schema mapping · Zero downtime
DynamoDB → Neon
Live CDC · Auto schema mapping · Zero downtime
Firestore → Neon
Live CDC · Auto schema mapping · Zero downtime

How NoSQL types map to Neon

Source typeNeon typeNote
ObjectId / String IDVARCHAR(24)Stored as the 24-character hex string; _id becomes the primary key
StringTEXT / VARCHAR(n)Configurable max length or unlimited TEXT
Number / IntegerINTEGER / BIGINTNumeric types mapped to appropriate integer types
Double / DecimalDOUBLE PRECISION / NUMERICFloating point or arbitrary-precision
Date / TimestampTIMESTAMP WITH TIME ZONEFull timezone-aware timestamps
BooleanBOOLEANStandard true/false
Array / ListJSONB / ARRAYNested arrays as JSONB or typed PostgreSQL arrays
Object / Map / Nested docJSONBFlexible schema fields with indexing support
Binary / BytesBYTEABinary data support
Null / MissingNULL (nullable column)Schema-less nulls become SQL-compliant NULL

Migrating to Neon — FAQ

How long does a migration take?

A typical 100 GB dataset migrates in under 2 hours with bulk mode. With CDC enabled, ongoing writes sync in real time. Total time depends on data volume and network throughput.

Is my data secure during migration?

Yes. All data is encrypted in transit (TLS 1.3) and at rest (AES-256). Database credentials use short-lived tokens. Migration workers run in an isolated environment and never store data after the job completes.

Can I roll back if something goes wrong?

Yes. NoSQLSync only reads from your source — it is never modified, and CDC keeps running until you stop it. If you hit a problem after cutover, point your application's connection string back at the source.

Ready to migrate to Neon?

Free plan includes 5 migrations per month. No credit card required.

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