Waifu Deck
Swipe anime art from 10 sources and sync to your own cloud.
Open SourceOpen sourceOpen source · verified#anime#image-collection#cloud-sync
Launches Oct 21, 2026 at 00:00 UTC
What is Waifu Deck?
Waifu Deck is a free, open-source Android application for collecting anime illustrations. It pulls images from ten different art boards and lets users swipe left to skip or right to save. All saved images are stored as full-resolution originals directly on the device using local SQLite and content-addressed storage. The app works completely offline and requires no account registration or data tracking.
Users can optionally connect their own cloud storage for encrypted multi-device synchronization. The application supports Cloudflare R2, Bunny.net, Backblaze B2, Google Drive, OneDrive, and WebDAV networks. Images are encrypted client-side with AES-256-GCM before leaving the phone, and decryption keys are derived from a user password that never leaves the device.
The interface separates safe-for-work and adult content, applies tag filters, and sorts collections by source, date, resolution, or file size. The project is licensed under AGPL-3.0, with all source code published on GitHub. Direct APK downloads are provided alongside signature verification details for security.
Waifu Deck features
- Swipe interface to skip or save images from ten art boards
- Stores full-resolution originals locally with offline access
- Optional encrypted sync to six supported cloud storage services
- Separates SFW and NSFW content with tag filtering and sorting
- Zero ads, zero telemetry, and no account registration required
- Client-side AES-256-GCM encryption with user-managed passwords
Who uses Waifu Deck and for what
- Building a personal offline library of anime illustrations without relying on third-party servers
- Syncing a curated image collection across multiple Android devices using personal cloud storage
- Browsing and filtering large anime tag databases while maintaining strict privacy and no data tracking
- Archiving high-resolution artwork from community art boards for long-term local viewing
Waifu Deck FAQ
Is Waifu Deck free?
Yes. The application is completely free to download and use. It is released under the AGPL-3.0 license and does not charge any subscription fees or display advertisements.
Is Waifu Deck open source?
Yes. The full source code is publicly available on GitHub under the GNU AGPL-3.0 license. Users can review the code, verify the APK signatures, or compile their own builds.
What is Waifu Deck used for?
It is used to browse, filter, and collect anime illustrations from ten different art boards. Saved images are stored as full-resolution originals on the device and can optionally be synced to a user-owned cloud drive.
Does Waifu Deck work on Mac?
Waifu Deck is built for Android and runs natively on Android phones and tablets.
How does Waifu Deck handle my photos and cloud data?
Images are stored locally first and encrypted with AES-256-GCM before syncing to your chosen cloud provider. The app uses narrow permissions for Google Drive and OneDrive, accessing only its own folder. Passwords are processed on-device and never sent to external servers.
Comments (0)
No comments yet. Ask the maker a question or share how you would use it.