Compress Images Online
Reduce image file sizes by up to 90% while preserving crisp visual sharpness. Perfect for website optimization, email attachments, and faster load times.
Upload JPG, PNG, or WebP to Compress
Up to 50MB. Processed 100% locally in your browser.
How to Use Image Compressor
Upload Image
Drag and drop or browse your JPG, PNG, or WebP file into the upload zone.
Adjust Compression
Choose your desired quality level using the slider or select a target file size preset.
Compare & Download
Preview the compressed image alongside original file size metrics, then click Download.
About Image Compressor
Image compression works by eliminating redundant visual information and optimizing color quantization tables. While traditional online compressors transmit your personal photos across the internet to remote servers, Toolxilla performs the entire mathematical DCT (Discrete Cosine Transform) and canvas re-encoding directly in your web browser utilizing hardware-accelerated Web APIs.
Supported Formats
Operational Limits
- •Maximum file size: 50MB per image
- •Browser memory limits apply on mobile devices
Key Features
- Lossless & lossy compression algorithms with live preview
- Custom quality slider from 1% to 100%
- Target file size presets (e.g. 50KB, 100KB, 200KB)
- Zero server uploads: files stay entirely on your device
- Instant side-by-side file size savings comparison
Frequently Asked Questions
Related Tools
More in image toolsImage Resizer
Resize image dimensions by pixels or percentage with aspect ratio lock.
Image Converter
Convert images between JPG, PNG, WebP, and SVG formats instantly.
Image Cropper
Crop photos with precise aspect ratios: 1:1 square, 16:9, 4:3, or custom.
Recommended Reading
How to Compress Images Without Losing Quality: The Complete Guide
Master modern lossy and lossless image compression algorithms. Learn how to cut 80% of file weight, preserve pixel sharpness, and optimize Core Web Vitals.
JPG vs. PNG vs. WebP: Which Image Format Should You Choose?
Compare JPEG, PNG, and WebP raster formats. Discover which file extension produces the smallest web footprint, best fidelity, and widest browser support.