Free Image Resizer
Resize images to any dimension instantly. Maintain aspect ratio, use presets for social media, and export in PNG, JPEG, or WebP format.
Drop an image here or click to upload
Supports PNG, JPG, WebP, GIF, BMP
How It Works
- All processing happens in your browser - no images are uploaded to any server
- Use the aspect ratio lock to maintain proportions when resizing
- Choose PNG for transparency, JPEG for photos, WebP for best compression
- Quick presets help you resize for specific platforms instantly
How to Use the Image Resizer
Upload Your Image
Drag and drop your image into the upload area, or click to browse and select a file from your device. Supports PNG, JPEG, WebP, GIF, and BMP formats.
Set Your Desired Dimensions
Enter the width and height in pixels, or select a preset for common sizes like social media platforms (Instagram, Facebook, YouTube). Toggle the lock icon to maintain aspect ratio.
Choose Output Format and Quality
Select your preferred output format: PNG for transparency, JPEG for photos, or WebP for best compression. Adjust the quality slider for JPEG and WebP outputs.
Download Your Resized Image
Preview the resized image and click the download button to save it to your device. The image is processed entirely in your browser for complete privacy.
Pro tip: Your data is processed entirely in your browser. Nothing is sent to any server, ensuring complete privacy.
About Image Resizing
Image resizing is the process of changing the dimensions of a digital image. Whether you need to resize photos for social media, optimize images for your website, or prepare images for printing, our tool makes it easy to get the exact dimensions you need while maintaining quality.
Key Features
- Aspect Ratio Lock: Maintain original proportions automatically
- Platform Presets: One-click sizing for Instagram, Facebook, YouTube, and more
- Multiple Formats: Export as PNG, JPEG, or WebP with quality control
- Privacy First: All processing happens in your browser
- Instant Preview: See results before downloading
Frequently Asked Questions
How do I resize an image without losing quality?
To minimize quality loss when resizing: 1) Avoid enlarging images beyond their original size, 2) Use PNG format for graphics with sharp edges, 3) For photos, use JPEG at 90%+ quality, 4) Consider WebP for the best balance of quality and file size. Our tool uses high-quality interpolation for smooth results.
What image formats are supported?
Our image resizer supports all common formats including PNG, JPEG, WebP, GIF, and BMP for input. You can export in PNG (best for transparency), JPEG (best for photos), or WebP (best compression with quality).
Is my image uploaded to a server?
No, all image processing happens entirely in your browser using the HTML5 Canvas API. Your images never leave your device, ensuring complete privacy and instant processing regardless of internet speed.
What are the best image sizes for social media?
Common social media sizes: Instagram Post (1080x1080), Instagram Story (1080x1920), Facebook Cover (820x312), Twitter Header (1500x500), LinkedIn Banner (1584x396), YouTube Thumbnail (1280x720). Our presets include all major platforms.
Should I use PNG, JPEG, or WebP?
Use PNG for images with transparency or sharp text/graphics. Use JPEG for photographs where some compression is acceptable. Use WebP for the best balance of quality and file size - it supports both transparency and photo compression.
How do I maintain aspect ratio when resizing?
Click the lock icon between width and height fields to maintain aspect ratio. When locked, changing one dimension automatically calculates the other to preserve the original proportions of your image.
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