業務自動化の人｜サクサクビズ

Press any key and your keyboard sings. KeyboardKeyboard turns your laptop into a playable grand piano, right in the browser — real sampled piano sound, full chords, about 3 octaves across two key rows, labels that auto-match your keyboard layout, plus optional MIDI keyboard support with velocity and a sustain pedal. Free, no sign-up.

Convert Excel, Word & PowerPoint to PDF instantly. Drag, drop, done. Files are never stored on the server.Office files to PDF, right from your phone

Free OCR tool: turn images, screenshots and PDFs into editable text. English & Japanese supported, no sign-up required. 無料OCR：画像・PDFを編集可能なテキストに。日英対応・登録不要。