image tool
Image Compressor
Compress images locally in your browser. Reduce file size for JPEG, PNG, WebP, and AVIF without uploading.
Upload Images to Compress
Drag and drop image files here, or click to browse. Supports JPEG, PNG, WebP, and AVIF.
Compress Images Online
Compress and optimize your JPEG, PNG, WebP, and AVIF images locally. This free online tool uses advanced compression techniques to reduce file sizes while maintaining high visual quality. All processing happens entirely in your browser — your files are never uploaded to any server.
- Select or drag-and-drop your JPEG, PNG, WebP, or AVIF images.
- Click Compress All to process the batch automatically.
- Click Compare on any image to fine-tune its compression settings.
How It Works & Features
By utilizing your browser's native capabilities, this tool provides fast, private, and secure image optimization. For JPEG, WebP, and supported AVIF images, it uses browser-native image encoding. For PNGs, it performs color quantization to reduce file size while preserving PNG transparency.
- Batch Processing & ZIP Export: Drag and drop multiple files to compress them all at once. Click Save All to download your optimized images together in a single ZIP file.
- Live Visual Comparison: Click Compare to open the interactive Before/After workspace. Use the slider to visually compare the original and compressed image.
- Fullscreen Mode: Expand the comparison workspace to fill your screen for an unobstructed view of compression results.
- Seamless Adjustments: Fine-tune the compression level (Quality for JPEG/WebP/AVIF, or Colors for PNGs) using the vertical sliders. The image automatically re-compresses as you adjust the settings.