Image Compressor
An online tool to compress images while maintaining quality. All processing is done in your browser.
Drag & drop an image, or click to select
Upload an image by clicking the upload area or dragging and dropping a file. Adjust the quality slider to set the compression level. Select the output format (JPEG, PNG, or WebP). The compressed image preview and file size comparison are shown in real-time. Click "Download" to save the compressed image.
Compression Tips
Image compression reduces file size by removing redundant data or reducing quality. Lossy compression (JPEG, WebP) discards some data for smaller files, while lossless compression (PNG) preserves all data. Optimizing images is crucial for web performance, as images often account for the largest portion of page weight. WebP format typically offers 25-35% smaller file sizes compared to JPEG at equivalent quality.
About Image Compression
Q. What image formats are supported?
A. This tool supports JPEG, PNG, and WebP formats for both input and output. You can also convert between formats during compression.
Q. Is my image data secure?
A. All compression processing is completed within your browser. Images are never uploaded to any server.
Q. ？
A. All compression is done using the Canvas API in your browser. Image data is never sent to any server, so you can use it with complete privacy.