Ultimate Wallpaper Manager: Organize & Auto-Rotate Your Backgrounds

Wallpaper Manager — Auto-Fit, Multi-Monitor & Cloud Backup

Overview
A Wallpaper Manager focused on automatic image fitting, robust multi-monitor support, and cloud backup to keep desktop backgrounds neat, consistent, and synchronized across devices.

Key features

• Auto-Fit: Automatically crops, scales, or pads wallpapers to match each display’s resolution and aspect ratio while preserving important image regions (face/subject-aware).
• Multi‑Monitor Management: Per-monitor settings (different images, spans, or stretching), monitor grouping, and independent rotation schedules.
• Cloud Backup & Sync: Stores wallpaper collections and settings in the cloud (optional encrypted sync), enabling seamless transfer across machines and restore after reinstall.
• Scheduled Rotation: Time-based or event-based (wake, unlock, network connect) wallpaper changes with per-monitor rules.
• Collections & Tagging: Create collections, add tags, and filter by tag/date/source for quick selection.
• Smart Selection: Algorithms to pick wallpapers based on color harmony with current UI, time of day, or user preferences.
• Local + Remote Sources: Import from local folders, RSS/URL feeds, Unsplash/other APIs, or cloud storage (Dropbox/Google Drive).
• Lightweight & Cross‑Platform: Low CPU/memory usage; available for Windows, macOS, and Linux.
• Conflict & Duplicate Detection: Detects duplicate images and resolves resolution conflicts automatically.
• Privacy Controls: Local-only mode and opt-in cloud sync; selective metadata sharing.

User scenarios

• Single-user on a multi-monitor workstation who wants different images per screen and automatic fitting.
• Designer or photographer syncing curated portfolios across devices.
• Power users who schedule themed wallpapers for presentations, focus sessions, or day/night modes.

Benefits

• Consistent, visually pleasing wallpapers across varying display setups.
• Reduced manual resizing/cropping work.
• Easy recovery and transfer of wallpaper libraries.

Basic tech stack (example)

• Frontend: Electron or native UI toolkit per platform.
• Image processing: libvips or ImageMagick.
• Sync: End-to-end encrypted storage with a cloud provider or user’s own cloud.
• Scheduler: OS-native hooks and background service/daemon.

If you want, I can draft a short app description for a store listing, a feature comparison table, or UI mockup ideas.