Piriform is a software company known for creating tools that help users optimize and maintain their computers. Founded in 2004, it gained popularity for its flagship product, CCleaner, which cleans up unnecessary files and improves system performance. In addition to CCleaner, Piriform offers other utilities like Defraggler, which defragments hard drives to enhance speed, and Recuva, a data recovery tool that helps users retrieve deleted files. These applications are designed to be user-friendly, making them accessible for both novice and experienced computer users.