Edit and organize exam papers and notes with automatic background removal and ink erasure. Convert images to Word for editing. Create and share custom quizzes and error collections. Generate printable PDFs and sync across devices.
by Danatech Inc.★ 4.8263 ratingsUtilitiesFreeData updated 2026-09-22
Remove background from audio and video recordings using AI technology. Adjust reduction levels manually. Export cleaned files in various formats. Supports both microphone and file input.
Fan Law Calculator allows users to input rpm, cfm, static pressure, and horsepower. Modifying one value recalculates the others. Ductulator helps size HVAC ducts by inputting shape, dimensions, air temperature, elevation, and roughness.