Collaborate for free with online versions of Microsoft Word, PowerPoint, Excel, and OneNote. Save documents, spreadsheets, and presentations online, in OneDrive.

Sign in to Outlook to access and manage your email efficiently.

Sign in to access and manage your Outlook email account securely.

Securely sign in to access your Microsoft account and manage emails, calendars, and other services efficiently.

Microsoft アカウントでサインインし、プロダクト キーを入力して開始します。 支援が必要な場合は、office.com/support にアクセスしてください

Login | Microsoft 365

Access and manage your Office 365 account, users, and settings from the admin portal.

Simplify scheduling and managing appointments with Bookings on Outlook.

Create forms in minutes... Send forms to anyone... See results in real time

Access Microsoft 365 to create, share, and collaborate using your favorite apps like Word, Excel, and PowerPoint.