Resize an Image to Any Size
Image Resizer lets you resize an image to exact pixel dimensions, scale it by percentage, or snap it to a ready-made size for any social platform. Drop in a photo, pick how big you want it, and download the result in seconds.
Work with a single image or a whole batch, lock the aspect ratio so nothing stretches, and export to JPEG, PNG, or WebP with the file size shown before you save. It is built for anyone preparing images for the web, social posts, print, or app icons.
How to Resize an Image
Add your images
Drag and drop files onto the upload area, click to browse, or paste from your clipboard. You can add up to 50 images at once for batch resizing.
Choose a resize mode
Pick Pixel to type an exact width and height, Percent to scale from 1% to 500%, or Presets to apply a ready-made social, web, or print size.
Set the fit mode
When the target shape differs from your image, choose Cover to crop and fill, Contain to fit inside with a background color, or Stretch to force the exact size.
Configure the output
Keep the original format or convert to JPEG, PNG, or WebP, then adjust the quality slider. The estimated file size updates live so you can balance size against quality.
Download
Click Download to save one resized image, or Download All to package the whole batch into a single ZIP file.
Features
Exact Pixel Dimensions
Type the precise width and height you need. Lock the aspect ratio to resize proportionally, or unlock it for custom dimensions.
Percentage Scaling
Scale from 1% to 500% with the slider or input, plus quick buttons for 25%, 50%, 75%, 100%, 150%, 200%, and 300%.
30+ Ready-Made Presets
Apply sizes for Instagram, Facebook, Twitter, YouTube, LinkedIn, Pinterest, and TikTok, organized into six categories.
Smart Fit Modes
Stretch fills the exact size, Cover scales and center-crops to fill, and Contain fits the whole image inside with a custom or transparent background.
Batch Resizing
Resize up to 50 images with the same settings, switch between them in the list, and download them all as one ZIP file.
Swap & Reset
Swap width and height with one click to flip between landscape and portrait, or reset back to the original size anytime.
Quality Control
Toggle smooth resizing for photos or off for crisp pixel art, and enable "Don't enlarge" to keep small images from being upscaled.
Format Conversion
Keep the original format or export as JPEG, PNG, or WebP, with an estimated file size shown before you download.
Flexible Input
Add images by drag and drop, by browsing your files, or by pasting from the clipboard. Supports JPEG, PNG, WebP, GIF, BMP, and SVG.
Fully Private
All resizing runs locally in your browser. No images are uploaded and no usage data is collected.
Frequently Asked Questions
How do I resize an image online?
Add your image, choose a resize mode (exact pixels, a percentage, or a preset), pick a fit mode if the shape changes, then click Download. There is nothing to install and no sign-up.
How do I resize an image to specific pixels?
Switch to Pixel mode and type the exact width and height you want. Keep the aspect ratio locked to scale proportionally, or unlock it to set each dimension independently.
Does resizing reduce image quality?
Making an image smaller usually keeps quality well. Making it larger can look soft, so enable Don't enlarge to avoid upscaling. For JPEG and WebP, the quality slider lets you control compression.
What is the difference between Cover and Contain?
Cover scales the image to completely fill the target area and crops whatever extends past the frame — ideal for edge-to-edge social posts. Contain scales the image to fit entirely inside, adding background padding so the whole picture is preserved.
What image formats can I resize?
You can load JPEG, PNG, WebP, GIF, BMP, and SVG images. For output, keep the original format or convert to JPEG, PNG, or WebP.
How many images can I resize at once?
Up to 50 images in a single batch. They are all processed with the same settings and downloaded together as one ZIP file.
When should I turn off smooth resize?
Turn it off for pixel art, icons, or any image where you want sharp, crisp edges. Keep it on for photographs and illustrations, where smoother scaling looks better.
Are my images uploaded to a server?
No. All resizing happens entirely in your browser using the Canvas API. Your images never leave your device and no data is sent anywhere.
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