No. The freeware ends with V5R4.
Since V6 wrkdbf costs 450 $. In my
opinion a reasonable price for what you get. There is much pricier
software with much less use on the market.
Alternative is e.g.
Linoma’s surveyor for 1000 $. It has a graphical DB editor with all
filtering and sorting, plus a complete DB administration toolset, sql
builder, 5250 screen, file transfer to Excel etc.