Calculate geometric areas by entering parameters. Solve triangle side and angle problems with any three inputs. Convert units between millimeters, centimeters, meters, and kilometers. Use a dedicated numeric keypad for efficient input.
Guangzhou Shunfei Information Technology Company Limited
Text input, edit, and customize with ease
Edit text with anti-fold features for social posts. Customize invisible nicknames and centered signatures. Input special symbols and generate QR codes instantly. Use voice typing, calculator, and encrypted messages for private conversations.
Transfer files between any devices and systems without speed limits. Send multiple files at once. Share via code, link, or QR code. Set download passwords, limits, and expiration. Files auto-delete after 24 hours. No ads. Access via browser or .
