Kasane クリップボード

NAZO K.K

In-app purchases

About this app

Kasane is a clipboard history manager that treats your clipboard as "confidential data." It offers end-to-end encrypted synchronization across all devices, including Mac, Windows, iPhone, and iPad.


[Copy on PC, Retrieve on Smartphone]
Authentication codes, Wi-Fi passwords, addresses, links—simply copy them on your PC and open Kasane on your smartphone. No more sending yourself messages!


[Copy Stack: Copy in Batch, Paste in Order]
Copy multiple IDs or text, then repeatedly press Cmd+V at your destination to paste them one after the other in the order they were copied. A powerful tool for form filling, coding, and translation. (macOS version)


[Hand Over Instantly with QR Codes]
Convert text into QR codes. The recipient simply scans it with their camera—no contact exchange, login, or app installation required. The fastest way to hand over addresses or links face-to-face.


[Everything You Copy Is Always Findable]
・Full-text search of your entire history. Searchable text within images (Japanese OCR supported)
• Organized by source app, type, and tags
• Long texts are preserved and the app doesn't slow down the system
• Special formats such as Figma and Sketch are fully preserved

【Secure enough to store passwords】
• End-to-end encryption equivalent to a password manager. No one can read your clipboard history.
• Mutation alert: Instantly warns if copied content is overwritten by another app within 3 seconds.
• Automatic clear: Confidential information is erased from the system clipboard in as little as 5 seconds.
• Data can be fully exported in JSON/CSV format.

【Free and usable forever】
Recent 50 history entries, full-text search, local encryption, biometric lock, export, and Copy Stack (up to 3 times per day) are free. Old history is never deleted.

【Pro】
• Subscription (includes E2E encryption and cloud sync): $2.99/month / $19.99/year
• One-time purchase $39.99: Permanently unlocks local features (unlimited history, groups, OCR, and all security features). Cloud syncing is subscription-only due to ongoing server costs.

Regarding iOS: Due to system limitations, saving on iPhones is done by opening the app, using the share menu, or using keyboard extensions. Content synced from other devices is always fully available.