Can you integrate MySQL with PostgreSQL?

Yes. Stacksync provides a managed, real-time two-way integration between MySQL and PostgreSQL: authenticate both systems, choose the objects to sync (such as MySQL's Columns and Primary and Unique Keys), map fields visually, and changes propagate both ways in milliseconds — no code required.

What should I know about the two APIs?

MySQL: SQL wire protocol (MySQL client/server protocol). Authentication: Database credentials entered as a connection string or parameters, with optional SSL root certificate upload and optional SSH tunnel (SSH user + SSH host). PostgreSQL: SQL wire protocol (PostgreSQL frontend/backend protocol). Authentication: Database credentials (connection string or parameters), with optional SSL root certificate upload and optional SSH tunnel (SSH user + host); a least-privilege DB user. Stacksync manages authentication, retries, and rate limits on both sides.

What makes MySQL's data model different?

MySQL: The binary log in ROW format records every row-level change, enabling log-based CDC without adding triggers to user tables. PostgreSQL: INSERT ... ON CONFLICT gives native upsert semantics, which makes inbound syncs idempotent against primary or unique keys. Stacksync's field mapping accounts for these differences between MySQL and PostgreSQL without custom code.

Is the MySQL–PostgreSQL integration secure?

Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means MySQL and PostgreSQL records are not retained after a sync operation.

How much does a MySQL and PostgreSQL integration cost?

Stacksync pricing is usage-based and starts at $1,000/month, including the managed MySQL and PostgreSQL connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom MySQL–PostgreSQL integration in-house.

Is Stacksync a managed MySQL–PostgreSQL connector?

Yes — Stacksync ships production-grade connectors for both MySQL and PostgreSQL. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.

Database

MySQL to PostgreSQL integration — real-time, two-way sync

Keep MySQL and PostgreSQL in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

SOC 2 and 6 other compliance frameworks
POC with real engineers in minutes

Live sync

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MySQL

PostgreSQL

<1s: latency
2-way: sync
100M+: records

Adopted by fast-scaling companies moving mission-critical data in real time

Case study

Migrated from Mulesoft

Case study

Migrated from Celigo

Migrated from Heroku Connect

Migrated from Matillion

Case study

Migrated from Fivetran

Case study

Migrated from Celigo

Why teams connect MySQL and PostgreSQL

Keep MySQL and PostgreSQL synchronized in real time, across engines, regions, or services, in one or both directions.

Two databases that must agree is one of the oldest problems in engineering: different engines for different workloads, separate services with overlapping reference data, a migration in flight, or regional instances that share a subset of records. Hand-rolled replication across systems means change capture, conflict handling, and type mapping, all built and maintained by your team.

Stacksync syncs tables or collections between MySQL and PostgreSQL continuously and bi-directionally, translating types between the two engines and resolving conflicts by rules you configure. Rows written on either side appear on the other within seconds.

Common use cases

Keep e-commerce orders in MySQL flowing into finance and fulfillment systems without export scripts
Feed a warehouse from MySQL continuously using binlog-based capture instead of nightly dumps
Feed reporting and BI from a continuously synced Postgres replica instead of scheduled ETL scripts
Expose SaaS objects (CRM contacts, ERP invoices, support tickets) as Postgres tables that internal tools can query and join

Regional or environment copies

Mirror selected tables to another region or environment continuously, filtered to just the rows that should travel.

Cross-engine sync

Keep the same dataset live in both MySQL and PostgreSQL, so each workload runs on the engine that suits it.

Migration with zero-downtime cutover

When one database is replacing the other, sync both directions during the transition and switch traffic when ready, without a freeze window.

What you can sync between MySQL and PostgreSQL

Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.

MySQL objects		PostgreSQL objects
Columns Field-level mapping targets with engine-typed values.	⇄	Custom Types and Enums Constrain synced values to a fixed set, mirroring picklist fields.
Primary and Unique Keys Match keys for idempotent upserts and conflict handling.	⇄	Tables The primary sync target; rows map one-to-one to records in connected SaaS systems.
JSON Columns Validated semi-structured payloads for nested SaaS data.	⇄	Views Read-side projections used to expose joined or filtered data to a sync.
Stored Procedures Server-side logic that can post-process synced rows.	⇄	Materialized Views Precomputed result sets synced outward on a refresh schedule.
Triggers An alternative change-capture mechanism when binlog access is unavailable.	⇄	Schemas Namespaces that scope which tables a sync reads and writes.
Databases (Schemas) Top-level namespaces that scope a sync's reads and writes.	⇄	Columns Field-level mapping targets; types are mapped to the connected system's field types.

What ships with MySQL ⇄ PostgreSQL

Connect MySQL and PostgreSQL for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every MySQL–PostgreSQL connection.

Real-time

Two-way sync

Changes in MySQL or PostgreSQL instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever MySQL or PostgreSQL data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.

At scale

Event queues

Handle millions of events per minute without losing a single MySQL or PostgreSQL record.

Observability

Monitoring

Track your MySQL ⇄ PostgreSQL sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between MySQL and PostgreSQL.

How the MySQL and PostgreSQL connectors work

MySQL

Integration surface: SQL wire protocol (MySQL client/server protocol)
Authentication: Database credentials entered as a connection string or parameters, with optional SSL root certificate upload and optional SSH tunnel (SSH user + SSH host)
Change detection: Database triggers — Stacksync creates deterministic triggers for internal logging and syncing (requires log_bin_trust_function_creators=ON when binary logging is enabled)
Capabilities: read · write · CDC
Rate limits: No API rate limits; throughput is bounded by connection limits and server resources

MySQL setup guide

PostgreSQL

Integration surface: SQL wire protocol (PostgreSQL frontend/backend protocol)
Authentication: Database credentials (connection string or parameters), with optional SSL root certificate upload and optional SSH tunnel (SSH user + host); a least-privilege DB user
Change detection: Logical replication (wal_level = logical) for change data capture via the "Postgres" connector; database triggers (TRIGGER grant + stacksync_logging schema) via the trigger-based "Postgres Heroku" connector where
Capabilities: read · write · CDC
Rate limits: No API rate limits; throughput is bounded by connection limits, instance resources, and replication slot throughput

PostgreSQL setup guide

How it works

How to connect MySQL to PostgreSQL — three steps, no code

Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.

01
Connect your apps

Authenticate MySQL and PostgreSQL with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
- OAuth 2.0
- SSH tunnel
- VPC peering
MySQL connected
PostgreSQL connected

OAuth 2.0
SSH tunnel
SSL certificate
VPC peering
02
Choose tables

Pick the MySQL and PostgreSQL objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
- Standard objects
- Custom objects
- Auto-schema
objects · MySQL ⇄ PostgreSQL

Customers 12,480
Sales Orders 8,213
Invoices 5,902
Items 1,344
03
Map fields

Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
- Auto-map
- Type casting
- Transforms
MySQL PostgreSQL

Company company_name text
Email email text
Amount amount numeric
Created created_at timestamp

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FAQ

MySQL and PostgreSQL integration FAQ

SECURITY

Security teams love Stacksync

As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.

Learn more about security

SOC 2 type II

ISO 27001

HIPAA BAA

GDPR

CCPA

CSA STAR

DPF US-EU-UK-CH

→ SECURITY WITH BENEFITS

SSO & SCIM

Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.

Alerts

Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.

Secure connection options

Securely connects to your systems with:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 386 integrations available for MySQL and PostgreSQL.

Popular · 8 of 386

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MySQL to PostgreSQL integration — real-time, two-way sync

Adopted by fast-scaling companies moving mission-critical data in real time