Compare and synchronize MySQL & MariaDB schema and data

KS DB Merge Tools for MySQL is an easy to use diff & merge tool for MySQL and MariaDB databases:

Compare schema and data
Quick filters to show all/new/changed/new+changed
Merge changes in both directions
Lightweight: less than 10 MB
Free version with basic features, available for commercial use. No credit card, no registration, no ads, no hidden telemetry.
Pro version with whole set of features at a reasonable price. Fully functional two weeks trial available.
Supported DBMS:
- MySQL from 5.5 to 8.4
- MariaDB from 10.2 to 11.4

Screenshots and use cases

Scroll the gallery and click on the image title to open the use case with detailed steps. Use the Pro/Free toggle to switch application modes, if applicable.

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

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

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

KS DB Merge Tools for MySQL - Compare and synchronize table definition (thumbnail)

KS DB Merge Tools for MySQL - Compare non-table schema objects (thumbnail)

KS DB Merge Tools for MySQL - Compare object definition (thumbnail)

KS DB Merge Tools for MySQL - Compare ad-hoc query result (thumbnail)

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Schema changes summary

Data changes summary

Compare and merge rows for the given table/view

KS DB Merge Tools for MySQL - Compare and synchronize data

KS DB Merge Tools for MySQL Free - Compare and synchronize data

Compare and merge rows for the given table/view

Handle table schema changes

KS DB Merge Tools for MySQL - Compare and synchronize table definition

KS DB Merge Tools for MySQL Free - Compare and synchronize table definition

Handle table schema changes

Compare and merge changes for the given object type

KS DB Merge Tools for MySQL - Compare non-table schema objects

KS DB Merge Tools for MySQL Free - Compare non-table schema objects

Compare and merge changes for the given object type

Compare definition of the particular object

KS DB Merge Tools for MySQL - Compare object definition

KS DB Merge Tools for MySQL Free - Compare object definition

Compare definition of the particular object

Compare ad hoc query result

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Please open this page on the wide screen to get the Free vs Pro features and pricing overview, or use the ≡ menu to download and/or get more details.

Free vs Pro at a glance

	Free	Pro
Price (USD, excluding VAT):	$0	Single-user (personal) license:	$50 BUY NOW
		Multi-user license for companies and organizations:	$65 ~ $25 per user (volume discounts) BUY NOW
		Payments are handled externally by PayPro Global (Toronto, Canada), transactions are encrypted and secure This is a perpetual license including a one-year of free upgrades More about purchasing, license types and discounts
Compare schema and programming objects:	Tables (columns and constraints) ^{merge new only} Views Stored procedures Functions	Tables (columns, constraints and indexes) Triggers Views Stored procedures Functions Events Sequences (MariaDB) Other objects can be compared by querying system metadata
Compare data:	Per table ^{with limitations}	Per table Per view Any table/view vs any other table/view ^{merge only if target updateable} Any custom query result ^{diff only} Batch data diff across multiple tables, views, custom mappings and custom queries Data slices (customized subset of Batch data diff)
Other Pro features:	N/A	Diff profiles Id-Remap Merge Export to Excel Application customization Misc. other enhancements: SSH support, scrollbars colored with changes summary, navigation thru changes, advanced search, etc. More about Pro features

If you have any questions, please contact us.