FreeOCR is based on the widely used Tesseract OCR engine, which was originally developed by Hewlett-Packard in England in the 1980s.
FreeOCR ແມ່ນອີງໃສ່ການນໍາໃຊ້ກັນຢ່າງກວ້າງຂວາງ Tesseract OCR ເຄື່ອງຈັກ, ຊຶ່ງການພັດທະນາເບື້ອງຕົ້ນໂດຍ Hewlett-Packard ໃນປະເທດອັງກິດໃນປີ 1980.