Photoshop brushes are basically images with transparency layer, so it should be no problem to re-save them back as PNGs.
Convert Adobe Photoshop brush to Portable Network Graphic.
We found 2 software records in the database related to .abr to .png file format conversion.
Microsoft Windows software - convert abr to png on Windows
One of the best bitmap graphic editing program
Convert from abr file format
|Yes, Adobe Photoshop supports png file conversion as a target file type.||Yes||Yes||png 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 abr to png. 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.
Apple macOS / Mac OS X software - convert abr to png on OS X
Mac version of popular digital image editor