Exchange legal documents, quotes, and designs with external parties
Access management within your organization
Multi-user department usage with logging features
Works with web browsers like Chrome and Safari
🇯🇵 Japan's first commercial service applying passkeys to file encryption🏆 Ranked #1 in PR Times Technology TopicsPasskey technology eliminates the need for cumbersome password sharing. Even in environments where passkeys are not available, files can be safely opened with a recipient-only password that doesn't need to be shared.
Only the recipient specified by email address during encryption can open the file after verifying their identity through biometric authentication or one-time codes.
Even if you accidentally send a file to the wrong person, only the specified recipient can open it.
Encrypted files can be sent directly through your usual tools such as email or chat applications.
Kagisuru uses highly secure encryption methods also used in online banking and My Number cards.
Unprotected files are never stored in Kagisuru during the locking or unlocking process. Data used for identity verification, such as fingerprints and facial recognition, is also never stored.
Individuals and small businesses can start using it for free
Learn about enterprise featuresCreate files that only specific recipients can open by simply entering their email address. You can specify anyone, even if they don't use Kagisuru, and no prior account registration is required.
Recipients can open files using fingerprint or face recognition on their smartphone or PC. Even if the file is leaked, only the intended recipient can open it. *Requires compatible password managers (Google Password Manager, Apple Passwords from September 2024, etc.). For unsupported environments, an alternative password (personal, no sharing required) can be used.
Record when and who opened files. Useful for tracking delivery and managing important files. With the enterprise plan, you can manage who in your department opened files and when.
Create a dedicated page for others to send you files securely. Add it to your email signature to prevent PPAP reception. In addition to personal receiving pages, the enterprise plan allows you to create receiving pages for departments or offices.
Weak passwords can be cracked. Using the same password multiple times means that if one file is compromised, all other files are at risk.
Kagisuru allows passwordless file locking.
You send a password-protected PDF or ZIP file, then send the password separately. Later, you realize you made a typo in the email address for both and leaked the information...
With Kagisuru, sending to the wrong person is no problem.
You upload a file to a file sharing service and it leaks. The password or sharing link is compromised and information is leaked...
Kagisuru is designed to prevent sharing of sensitive information.
Individuals and small businesses can start using it for free
Learn about enterprise features