Preheat the oven to 350 degrees F (175 degrees C).

Mix together whole wheat and all-purpose flours, wheat germ, flax seed, poppy seeds, onion flakes, parsley flakes, basil, oregano, garlic salt, baking powder, paprika, and cayenne in a large bowl until well combined.

Combine water, olive oil, and sesame oil in a separate bowl; add to flour mixture and stir until dough is just moistened and easy to handle. Gather into a ball and divide into 4 equal pieces.

Roll 2 pieces into thin sheets and place on ungreased cookie sheets. Prick with a fork or dough docker and cut into squares of desired size with a pizza cutter or pastry edger. Sprinkle with kosher salt.

Bake in the preheated oven until golden brown, 12 to 15 minutes; watch carefully so crackers do not burn. Remove from the oven and transfer to wire racks to cool.