Image Compressor Privacy: All processing runs locally
Compress images to reduce file size. Adjust quality and see original vs compressed size with savings percentage.
Drag & drop an image here, or click to select a file
How It Works
This image compressor uses the HTML5 Canvas API to re-encode your images at a lower quality setting, significantly reducing file size while maintaining acceptable visual quality. The tool draws your image onto an invisible canvas and exports it using the selected format and quality level.
The quality slider controls the compression level from 1% (maximum compression, smallest file, lowest quality) to 100% (minimum compression, largest file, highest quality). For most photographs, a quality setting between 60-80% provides a good balance, often reducing file size by 50-80% with minimal visual difference.
You can choose between JPG and WebP output formats. WebP generally produces smaller files than JPG at equivalent visual quality. The real-time statistics display shows the original size, compressed size, and the exact savings percentage so you can find the perfect balance for your needs.
All compression happens entirely in your browser using the Canvas API's built-in encoding capabilities. No images are uploaded to any server. This approach provides complete privacy while leveraging the mature, optimized image encoding algorithms built into modern web browsers.