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Image Tools
Image Compressor
Reduce JPG, PNG and WebP file size up to 85% without visible quality loss. Runs locally in your browser.
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Image Tools
Local browser processing
Resize Images Online for Free
Resize JPG, PNG and WebP images online to exact pixel dimensions. Lock the aspect ratio, use web presets and download instantly.
Drop your JPG, PNG or WebP image here to resize
Supports JPG, PNG and WebP • Processed 100% locally in your browser
Select Image File
Your image is processed directly in your browser and is not uploaded to our server.
Resize Dimensions
Original
Quick scale by percentage
Standard web & social presets
Resized preview —
Privacy guarantee: your image is processed directly in your browser and is not uploaded to our server.
How to Use the Image Resizer
Follow these three steps to process your assets directly in the browser.
1
Select an image file
Upload any JPG, PNG or WebP image, or click the sample button to test the tool immediately.
2
Enter target width and height
Type the pixel values you need, scale by percentage, or pick a preset. Keep the aspect ratio locked to avoid distortion.
3
Preview and download
Review the resized preview and output size, then download the file in your chosen format.
Key Features of the Image Resizer
Automatic aspect-ratio lock
The matching height is recalculated as you type, so photos never look squashed or stretched.
High-quality resampling
Browser image smoothing is set to high quality so edges and typography stay crisp when downscaling.
Percentage and web presets
Scale to 25/50/75/100% or jump to Full HD 1920x1080, Open Graph 1200x630 and square 1080x1080.
Export in any format
Keep the original format or export the resized image as JPG, PNG or WebP.
How the image resizer works and best practices for modern web projects.
Why resizing matters for page speed
Serving a 4000x3000 camera photograph inside a 600px blog column forces every visitor to download megabytes of data they will never see, then burns CPU scaling it down in memory.
Resizing an image to its real display width (or double that width for Retina screens) is the single most effective optimisation you can apply, because it reduces both transfer size and decode time.
How to resize without losing sharpness
Keep the aspect ratio locked. The ratio is the proportional relationship between width and height, for example 16:9 for widescreen banners or 4:3 for classic photography. Reducing 2400px to 1200px with the lock enabled also halves the height from 1600px to 800px.
Always downscale rather than upscale. Enlarging a small image invents pixels that were never captured, which softens fine detail. Start from the largest master file you have.
Image Resizer — Frequently Asked Questions
Leave the Maintain aspect ratio checkbox enabled. Changing the width then recalculates the height automatically. If you need a different shape entirely, crop the image instead.
Full-width desktop heroes work well between 1600px and 1920px wide with a height of 900px to 1080px. Blog content images are usually 800px to 1200px wide.
Yes. All resampling happens in your browser through hardware-accelerated Canvas rendering; nothing is uploaded.