Mutable Butterfly

Convert images locally using the Canvas API. Encode messages with the steganography tool

For a Chrome Web Store listing, you want to lead with the **"Local-Only"** privacy advantage, then highlight the **Steganography** as a unique "Power User" feature that sets you apart from basic converters. Here is a high-conversion description tailored for **Mutable Butterfly**: --- ## Mutable Butterfly: Private Converter & Steganography Tool **Transform your images. Hide your secrets. 100% Offline.** Mutable Butterfly is a professional-grade utility designed for developers, creators, and privacy enthusiasts. Unlike "cloud" converters that upload your private data to distant servers, Mutable Butterfly performs all mathematical transformations and bitwise encoding directly on your local hardware. ### 🦋 The Power of the Mutable Butterfly Our "Local-First" architecture means your images never leave your browser. Whether you are optimizing assets for a website or sending encrypted messages, your data remains yours. ### 🛠 Key Features: * **Instant Format Conversion:** Seamlessly convert between **PNG**, **JPG**, and **WebP**. Optimize for file size or quality without the "upload/download" lag. * **LSB Steganography (New!):** Hide secret text messages inside the pixel data of any PNG. Our advanced encoding modifies the "Least Significant Bits," making the message invisible to the human eye but decodable by the extension. * **Privacy-Centric:** Zero tracking. Zero data collection. No account required. * **Stable Workspace:** Launches in a dedicated, distraction-free window that won't close while you're selecting files. ### 🧪 Why Choose Mutable Butterfly? In an era of data harvesting, Mutable Butterfly stands for digital sovereignty. It’s a "jack-of-all-trades" tool that treats your images like science, not a product. * **For Developers:** Quickly convert assets to modern WebP formats for faster page loads. * **For Researchers:** Use the steganography engine to experiment with data-hiding techniques. * **For Everyone:** A clean, zero-cost utility that just works. --- ### **Technical Details:** * **Processing:** Client-side Canvas API. * **Security:** Bitwise LSB Encoding. * **Cost:** Free to use (with optional Pro features for bulk processing coming in the future). * **Permissions:** Minimal. We only ask for the permissions needed to save your converted files. --- ### **How to use the "Secret" Mode:** 1. Select a **PNG** as your target format. 2. Type your message into the **Secret Message** field. 3. Click **Encode & Export**. 4. To read a message, simply upload an encoded image and click **Read Secret**.