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Image Tools

Image Resizer

Resize images to exact pixel dimensions or by percentage. Social media presets for Instagram, YouTube, and LinkedIn in your browser.

Free in browser No sign-up required Files stay on your device
Upload Images

Drop images here or click to upload

JPEG, PNG, WebP · Multiple files supported

Output format

100% free, processed in your browser

Resized image appears here

Upload an image, set dimensions, and hit Resize.

Files processed locally — never uploaded
How it works

Run this tool in three short steps.

01

Upload Your Image

Drop or select one or more JPEG, PNG, or WebP images. Resizing happens in your browser during processing.

02

Set Target Dimensions

Type pixel dimensions, use a percentage scale, or choose a social media preset (Instagram, YouTube, LinkedIn, and more).

03

Download Resized Image

Preview the before/after result with the comparison slider, then download. Batch resize downloads all files at once.

Questions

What people ask before they use this tool.

How does the image resizer work?
It uses the HTML5 Canvas API to scale your image to the exact dimensions you specify. All processing happens in your browser — no server uploads.
Can I maintain the aspect ratio?
Yes! The lock icon between width and height keeps the aspect ratio locked by default. Click it to unlock if you need custom proportions.
What formats are supported?
JPEG, PNG, and WebP images. You can also choose a different output format — for example, upload a JPEG and download as WebP for smaller file size.
Can I resize multiple images at once?
Yes. Select multiple files in the file picker or drag and drop a batch. All images will be resized to the same target dimensions and can be downloaded individually.
What are the social media presets?
One-click presets for Instagram Post (1080x1080), Instagram Story (1080x1920), Facebook Cover (820x312), Twitter/X Header (1500x500), YouTube Thumbnail (1280x720), and LinkedIn Banner (1584x396).
What is the maximum size?
There is no limit — but very large images may be slow on older devices since processing happens in your browser.
Is my image data private?
Image resizing happens in your browser using the Canvas API. Your images are not uploaded to our servers during processing.
Does resizing reduce image quality?
Enlarging always reduces sharpness because the browser interpolates new pixels. Downscaling preserves quality well. For AI-powered enlargement that adds real detail, try our <a href="/image-upscaler">AI Image Upscaler</a>.
Can I resize images on my phone?
Yes. The tool works in any modern mobile browser. Drag-to-resize on the preview and social media presets work with touch input. Large batch operations may be slower on older devices.
How does this compare to Photoshop or Canva?
Photoshop and Canva are broader editing environments, while this tool is focused on direct image resizing in the browser. It works well when you mainly need batch resize, exact pixel input, percentage scaling, or social media presets.
What happens to EXIF metadata when I resize?
Canvas-based resizing strips EXIF data (camera info, GPS, orientation). This is actually a privacy benefit. If you need to keep metadata, use dedicated desktop software.
Can I resize and compress at the same time?
Resizing to smaller dimensions naturally reduces file size. For further compression, run the result through our <a href="/compress-image">Image Compressor</a> or choose WebP output format for 25-35% smaller files.
What is the maximum dimension I can set?
The tool allows up to 10,000 pixels per side. Very large outputs may exceed your browser's canvas memory limit (16 megapixels on iOS Safari). A warning will appear if the output is capped.
Related

Continue the workflow

Coda One's Image Resizer lets you resize JPEG, PNG, and WebP images to exact pixel dimensions or by percentage. Use social media presets for Instagram, Facebook, X/Twitter, YouTube, and LinkedIn. Choose output format (PNG, JPEG, WebP), batch resize multiple images at once, and lock aspect ratio to prevent distortion. Images are not uploaded to our servers during processing.

More:  All Image Tools  · Compress  · Convert  · Resize  · Remove BG