Image Size Checker & Optimizer
Analyze image dimensions, file size, compression ratio. Get optimization recommendations and compress/resize for web performance.
Drag & drop or click to upload image
JPG, PNG, WEBP supported
How to use this tool
- Step 1: Upload an image (JPG, PNG, WEBP) by clicking or dragging.
- Step 2: The tool automatically analyzes dimensions, file size, and web score.
- Step 3: Read the recommendation box to see if your image needs optimization.
- Step 4: Adjust the compression quality slider and/or enter new width/height.
- Step 5: Click Optimize Image – the optimized preview and new stats appear instantly.
- Step 6: Click Download Optimized to save the compressed/resized image.
- Use Remove Image to clear everything and start over.
All processing happens in your browser – no upload to any server, your images stay private.
100% client-side processing — your images never leave your device
📘 External Resource: MDN Web Docs – Image file type & optimization guide
⚡ Learn best practices for web images