Is wood filler the same as wood glue?

No, wood filler and wood glue are not the same. Wood filler is a putty-like substance used to fill in gaps, cracks, and holes in wood surfaces, while wood glue is an adhesive used to bond pieces of wood together. Wood filler is typically used for cosmetic purposes to create a smooth surface, while wood glue is used for structural purposes to securely join wood pieces.