Yes, PSPad has spellcheck 1. download and unpack dictionary from PSPad download page into .\Spell subfolder 2. in the menu Settings / Spell settings (Ctrl+F7) select dictionary
Now you ca underline word from the menu View / Spell check or start checking from the Tools menu (F7) -- <https://forum.pspad.com/read.php?2,75507,75511> PSPad freeware editor https://www.pspad.com