DupShelf vs happycapy
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 happycapy leads with 1401 upvotes

Find duplicate photos in your browser
DupShelf is a privacy-focused, browser-based tool designed to identify and manage duplicate photos without uploading any data to the cloud. Unlike many duplicate finders that require uploading your entire library or rely on fuzzy matching algorithms, DupShelf runs entirely within your browser, ensuring your images never leave your device. It scans folders directly or allows batch additions, using SHA-256 hashing to detect exact duplicates—even if the files have been renamed or re-exported. The interface enables users to review matched groups, select which images to keep, and organize duplicates by moving or exporting them, all without auto-deletion. Perfect for messy backups, downloads, or photographers who prioritize privacy and control, DupShelf offers a straightforward, secure solution for managing photo collections efficiently and confidently.
Pros
- Runs entirely in the browser, ensuring maximum privacy and data security
- Accurate detection of exact duplicates via SHA-256 hashing, even if files are renamed or re-exported
- No account required, no uploads, and free to use
- User-friendly interface for reviewing and managing duplicates
- Supports folder scanning and batch processing
Cons
- Limited to detecting only exact duplicates, not similar images or duplicates with minor edits
- Requires manual review and management, no automatic deletion
- May be less effective for very large collections due to browser resource constraints
Best for
- • Cleaning up messy photo backups and downloads
- • Photographers removing exact duplicates from their archives
- • Organizing files after re-export or renaming to eliminate redundancy
- • Maintaining privacy-sensitive photo collections locally
Pricing: Free to use, with no account or subscription required. Designed as a privacy-centric, local tool with no hidden costs or premium tiers.

The agent-native computer, for the rest of us
Happycapy is an innovative browser-based platform that transforms your web browser into an agent-native computer powered by Claude Code. Designed for ease of use, it requires no setup, learning curve, or security worries, making it accessible for users of all skill levels. Whether on desktop or mobile, users can effortlessly perform a wide range of tasks—from coding and design to everyday productivity—within a single, unified interface. Its GUI is intuitive and user-friendly, making complex tasks approachable for creators, builders, and anyone who simply wants things done efficiently. By bringing the power of an AI agent directly into your browser, Happycapy aims to democratize computing, offering a seamless experience for both work and play.
Pros
- No setup or learning curve, easy for beginners
- Accessible on both desktop and mobile devices
- Secure, browser-based environment eliminates installation risks
- Versatile functionality for coding, design, and daily tasks
- Powered by advanced Claude Code AI for intelligent assistance
Cons
- Dependent on internet connection for optimal performance
- Limited offline capabilities
- Potential privacy concerns depending on data handling
Best for
- • Coding and scripting tasks within a browser environment
- • Design prototyping and quick visual edits
- • Managing daily productivity tasks like note-taking and scheduling
- • Learning and experimenting with AI-driven code generation
Pricing: Likely operates on a freemium model, offering basic features for free with premium plans providing additional capabilities, integrations, or higher usage limits. Exact pricing details are not specified but may start around a modest monthly fee.