Formic acid is in use as a preservative and antibacterial agent, it is also useful in the manufacturing of leather and rubber. It is useful as a miticide by beekeepers.
Formic acid is also significantly used in the production of leather, including tanning , and in dyeing and finishing textiles because of its acidic nature. Use as a coagulant in the production of rubber.
Formic acid is also used in place of mineral acids for various cleaning products, such as limescale remover and toilet bowl cleaner. Some formate esters are artificial flavorings and perfumes.
Formic acid application has been reported to be an effective treatment for warts.