Image Resizer — Resize Images Free Online
Resize JPG, PNG and WebP images by pixels or percentage with live preview. No signup and files never uploaded.
Upload Image
Drop image here or click to browse
JPG, PNG, WebP supported
Frequently Asked Questions
How do I resize an image to specific dimensions?
Upload your image, select the Pixels tab, enter your desired width and height. Enable the lock icon to maintain aspect ratio. Click Resize and download.
Will resizing reduce image quality?
Reducing size generally maintains quality well. Enlarging beyond the original size may reduce sharpness as pixels are interpolated. For best quality, avoid enlarging more than 150% of the original.
What is the best format for resized images?
JPG for photos (smaller file), PNG for graphics with transparency, WebP for web use (best compression). WebP is 25-35% smaller than JPG at same quality.
Can I resize to exact social media dimensions?
Yes. Use the preset buttons for common sizes: Instagram (1080×1080), Twitter (1200×675), WhatsApp (512×512) and more. Click any preset to auto-fill the dimensions.
Is there a maximum image size?
No strict limit. Very large images (above 20MB) may take a few seconds on slower devices. All processing happens in your browser — files are never uploaded to any server.
Upload an image to start resizing.