Do you just need to see the data, or do you need to upload new files into the BLOB columns? Look for "Import" functionality.
Database .NET is a powerful, multi-database management tool that includes one of the most robust BLOB visualizers on the market. It is portable, meaning no complex installation is required. sql blob viewer download
DBeaver is the "Swiss Army Knife" of database tools. Its open-source version includes a sophisticated Value Panel. Do you just need to see the data,