Smart Image Optimizer - Batch Compressor

🔥 A truly local image compression tool — your images never leave your device. Zero privacy risk. Supporting multiple formats with drag-and-drop ease and batch processing. Reduces file size by 50%–90% on average, saving storage space and speeding up load times. 【FEATURES】 ✦ Local & Offline All compression happens right in your browser. No images are uploaded to any server. Works entirely offline. Your photos stay private. ✦ Multi-Format input Supports import of mainstream image formats such as PNG, JPEG and GIF, and supports large-sized images. ✦ Multi-Format Output Export as JPEG, WebP, AVIF, or PNG. Select multiple formats at once to generate all variants in a single pass — easy to compare and pick the best one. ✦ Batch Compression Drag & drop or click to upload multiple images, processed in parallel in the background with real-time progress. Download everything as a ZIP, or save files individually. ✦ High-Quality Output Efficient compression algorithms maximize file size reduction while preserving visual detail and keeping quality loss to a minimum. ✦ Quality Comparison Built-in before/after comparison with slider and split-view modes. Zoom in to inspect fine details and see the quality difference at a glance. ✦ Adjustable Quality 1-100 quality slider to balance file size and visual quality. At 100% quality, PNG images output as truly lossless compression. ✦ Dark Mode Switch between light and dark themes, or follow your system preference. Easy on the eyes during long sessions. 【USE CASES】 • Web designers & front-end developers: optimize images for faster page loads • E-commerce sellers: compress product photos to meet platform size limits • Social media creators: reduce file size for faster uploading and sharing • Everyday use: save storage space on your devices --- Questions or feedback? Reach us via the email button on the extension page.