RedisInsight detects java serialized objects and converts them to a nicely formatted JSON object, along with the fully qualified class name.

java-serialized-objects

It doesn't matter what you store. Whether it is a hibernate object, or a user session or a plain old java object, RedisInsight reverse-engineers and show it to you nicely.

Just for fun, we tried out how such an object would look without the formatting. Total garbage.

java-serialized-objects-noprettyprint