Show HN: BananaSlice – free Generative Fill alternative using Nano Banana (github.com)

BananaSlice, an open-source alternative to Adobe Photoshop's Generative Fill, has been launched, leveraging Google Gemini's advanced Nano Banana models for AI-powered image editing. This tool allows users to non-destructively fill selections with AI-generated content while offering a layer-based editing system that supports visibility adjustments, opacity management, and reordering. Notably, users can save their work in .banslice project files, maintaining full layer history and facilitating easy project management. Moreover, the application features multiple selection tools and supports the use of reference images to guide AI generation, all while ensuring secure API storage with encrypted keys. Significant for the AI/ML community, BananaSlice democratizes access to powerful generative fill capabilities, previously dominated by proprietary software, thereby encouraging innovation and experimentation among developers and artists. Built using modern web technologies like React 19 and TypeScript, and interfaced through Rust-based Tauri 2, it runs across Windows, macOS, and Linux platforms. This cross-platform capability, combined with a robust feature set, positions BananaSlice as a compelling contender in the landscape of AI-assisted image editing tools, potentially reducing the barriers to entry for creatives looking to explore generative design.