Compare Cross-DBMS Schema and Sync Data

KS DB Merge Tools for Cross-DBMS is an easy to use diff & merge tool for cross-DBMS scenarios.

Compare schema and data across different DBMS
Merge table data changes in both directions
GUI for Windows; CLI for Windows & Linux
Free version: no signup, no ads, no telemetry, limited sessions
Standard version: perpetual license, 14-day free trial
Supported DBMS versions:
- MySQL: 5.5 - 9.6
- MariaDB: 10.2 - 12.2
- SQL Server: 2008 - 2025, SQL Azure
- PostgreSQL: 9.3 - 18.*
- Oracle: 11g - 26ai
- SQLite and Microsoft Access files without password protection
Why KS DB Merge Tools

Only cross-DBMS comparison supported, to compare same DBMS, or MySQL vs MariaDB, please consider KS DB Merge Tools for corresponding DBMS

DOWNLOAD PRICING

Screenshots and Use Cases

Scroll the gallery and click on the image title to open the use case with detailed steps.
Or explore the app's key features by watching our short video walkthrough (about 3 minutes).

KS DB Merge Tools for Cross-DBMS - Schema changes summary (thumbnail)

KS DB Merge Tools for Cross-DBMS - Data changes summary (thumbnail)

KS DB Merge Tools for Cross-DBMS - Compare and synchronize data (thumbnail)

Merge Tools for Cross-DBMS - Compare custom query result (thumbnail)

KS DB Merge Tools for Cross-DBMS - Compare table definition (thumbnail)

KS DB Merge Tools for Cross-DBMS - Automation and Scripting (thumbnail)

KS DB Merge Tools for Cross-DBMS - Compare object list (thumbnail)

KS DB Merge Tools for Cross-DBMS - Schema changes summary

Use Case:Schema changes summary

KS DB Merge Tools for Cross-DBMS - Data changes summary

Use Case:Data changes summary

KS DB Merge Tools for Cross-DBMS - Compare and synchronize data

Use Case:Compare table data

KS DB Merge Tools for Cross-DBMS - Compare custom query result

Use Case:Compare custom query result

KS DB Merge Tools for Cross-DBMS - Compare table definition

Use Case:Compare table schema

KS DB Merge Tools for Cross-DBMS - Automation and Scripting

Use Case:Automation and Scripting

KS DB Merge Tools for Cross-DBMS - Compare object list

Use Case:Compare list of objects

Free vs Standard

	Free	Standard
Compare schema	All features	All features
Compare data	All features	All features
Session duration	Limited (40 min)	Not limited
Running instances	Single	Not limited
Output watermarks	Attribution included	None
Command line	Limited	Not limited

Pricing

License	Price (USD, excluding VAT):
Standard version, perpetual licenses:
Single-user personal license	$95 BUY NOW
Multi-user license for companies and organizations	Starting at $120 per user, volume discounts: 5 users: $450 ($90 per user) 10 users: $850 ($85 per user) 20 users: $1500 ($75 per user) BUY NOW
Free version:
Free license	$0

Payments are handled externally by PayPro Global (Toronto, Canada), transactions are encrypted and secure
Standard version license includes a one year of free upgrades
More about purchasing, license types and discounts

Features at a Glance

Schema and programming objects:	Tables definitions (column names, generic types, native types, nullability) Table indexes (columns, uniqueness, name) Foreign keys / relations (columns, cascade actions, constraint name) Views Other objects can be compared by querying system metadata
Data:	Tables and views Any custom query result Custom table and column mappings Batch data diff (across multiple tables, views, custom mappings and custom queries) Data slices (customized subset of Batch data diff) Id-Remap Merge (update IDs for FK integrity)
Other:	Export to Xlsx and Json Diff profiles Find tool SSH support for MySQL and PostgreSQL

If you have any questions, please contact us.