KS DB Merge Tools
 
for MS Access
aka AccdbMerge
for SQL Server
aka MssqlMerge
for MySQL
and MariaDB
for SQLite
 
for PostgreSQL
beta

Compare and synchronize database programming objects

Open databases (see Project changes summary use case) and 1click on interested object type, for example Modules:

You can also click on New or Changed counts to see only new or changed objects respectively. In the opened Object list tab 2select required object(s) and 3click merge button and wait for a progress completion:

To review particular object changes, click on the required object name to open the Text diff tab with object text:

In the Pro version you can also 4choose to show only new and/or changed lines: