The easiest way to convert .mdb files to .accdb files would be to use latest Microsoft Access from which both of these files originate. You may also find some other 3rd party database converters that support Access formats, however as a rule of thumb, Access databases are in somewhat closed format.
Convert Microsoft Access database to Microsoft Access main database.
We have found 7 software records in our database eligible for .mdb to .accdb file format conversion.
Microsoft Windows software - convert mdb to accdb on Windows
A relational database management system from Microsoft Office
Convert from mdb file format
|Yes, Microsoft Access supports mdb file conversion as a source file type.||Yes||Yes||mdb editor||Yes||Yes||Yes||No|
|Yes, Microsoft Access supports accdb file conversion as a target file type.||Yes||Yes||accdb editor||Yes||Yes||Yes||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned mdb to accdb. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A popular spreadsheet application distributed with Microsoft Office suite
A powerful database to database converter
Fully-featured version of Navicat for Windows
Apple macOS / Mac OS X software - convert mdb to accdb on OS X
Management tool for Access databases on Mac
Editor of Microsoft Access databases for Mac
A database viewer