Free Online Image Resizer

Resize image to exact pixel dimensions or scale by percentage — without losing quality. Our fast photo resizer works right in your browser: no uploads, no signup, no watermark.

Upload the image you want to resize

or drag & drop / paste an image here · JPG, PNG, WebP, GIF · Max quality, 100% free

Select Image

How to Resize an Image Online

1

Upload your image

Click the upload box or drag and drop your JPG, PNG, WebP or GIF photo. You can even paste an image from your clipboard.

2

Set the new size

Enter the exact width and height in pixels, pick a common preset, or scale your image by percentage. Keep the aspect ratio locked to avoid distortion.

3

Download instantly

Click “Resize Image” and your resized photo downloads immediately in your chosen format — free and without any watermark.

Why Use Our Photo Resizer?

100% Private & Secure

Your photos never leave your device. All image resizing happens locally in your browser — nothing is uploaded to a server.

Blazing Fast

No waiting for uploads or downloads from a server. Resize images in a split second, even large high-resolution photos.

No Quality Loss

High-quality multi-step resampling keeps your resized images crisp and sharp — no blur, no artifacts, no watermark.

Completely Free

Resize unlimited images with no signup, no account, no hidden fees and no limits on file size or number of images.

Works Everywhere

Use this image resize tool on any device — Windows, Mac, Linux, Android or iPhone — directly in your browser.

All Popular Formats

Resize JPG, PNG, WebP and GIF images, and convert between formats while you resize — all in one free tool.

More Free Image Tools

Resize Image to Exact Pixels — The Easy Way

Whether you need to resize an image for Instagram, a website banner, an email attachment, a job application, or a school project, our free image resizer makes it effortless. Just upload a photo, type the width and height you need, and download the perfectly resized result.

Unlike desktop software such as Photoshop, this online photo resizer requires no installation and no learning curve. And unlike many other online tools, it processes your image directly on your device, which means your personal photos remain completely private and the results appear instantly.

Popular image sizes people resize to

  • 1920 × 1080 — Full HD wallpapers, YouTube thumbnails and presentations
  • 1080 × 1080 — Instagram square posts
  • 1200 × 630 — Facebook and link-preview (Open Graph) images
  • 1280 × 720 — HD video thumbnails and web banners
  • 800 × 600 or smaller — Email attachments, forums and fast-loading web pages

Need a specific file size instead of dimensions? After resizing, run your photo through our image compressor to hit an exact KB target. You can also crop your image to a different aspect ratio or convert it to JPG, PNG or WebP.

Resize Images for Every Platform

Every app and website has its own preferred dimensions, and uploading the wrong size means blurry photos or awkward automatic crops. Here's a quick reference for the platforms people resize images for most often — and you can find the complete list in our social media image size cheat sheet.

Instagram

Use 1080 × 1080 pixels for square posts, 1080 × 1350 for portrait posts and 1080 × 1920 for Stories and Reels. Read our step-by-step guide to resizing images for Instagram for the exact settings.

YouTube

Thumbnails should be exactly 1280 × 720 pixels and under 2MB. Resize here first, then compress the thumbnail if it's over the limit.

Facebook & LinkedIn

Shared link images work best at 1200 × 630 pixels; LinkedIn post images at 1200 × 627. These sizes also double as perfect Open Graph images for any website.

Email attachments

Most inboxes reject attachments over 20–25MB. Resizing photos to 1200px wide and compressing them typically shrinks a batch of photos by 90% — our guide on reducing photo size for email walks through it.

Passport, visa & ID photos

Many official applications require exact pixel dimensions — for example 600 × 600 for US visa photos. Enter the exact width and height with the aspect-ratio lock turned off, or crop to a square first for a perfect result.

Resize by Pixels or by Percentage — What's the Difference?

Resize by pixels when you need an exact output size: a 1280 × 720 thumbnail, a 600 × 600 ID photo, an 800px-wide product image. Type the numbers and you get precisely that canvas.

Resize by percentage when you just want the image smaller and don't care about exact dimensions: scaling a huge 6000px camera photo down to 50% or 25% is the fastest way to make it manageable while keeping the original proportions perfectly intact.

Whichever mode you choose, keep the lock aspect ratio option enabled unless you deliberately want to stretch the image — changing width and height independently distorts your photo. If you need a different shape rather than a different size, that's a job for the crop tool.

Frequently Asked Questions

How do I resize an image online for free?
Upload your image to our free image resizer, enter the width and height in pixels (or choose a percentage), then click Resize Image. Your resized photo downloads instantly — no signup, no watermark, completely free.
Does resizing an image reduce its quality?
Making an image smaller keeps quality very high because our photo resizer uses high-quality resampling. Enlarging an image beyond its original size can look soft, so we recommend downscaling whenever possible.
Is it safe to resize photos on this website?
Yes. All image resizing happens locally in your browser using JavaScript. Your photos are never uploaded to any server, so your files stay 100% private.
What image formats does the image resizer support?
You can resize JPG, JPEG, PNG, WebP and GIF images. You can also change the output format to JPG, PNG or WebP while resizing.
Can I resize an image to a specific file size in KB?
Yes — first resize the dimensions here, then use our Compress Image tool and adjust the quality slider until the estimated size matches the KB size you need.
Can I resize images on my phone?
Absolutely. This image resize tool works on any device — Android, iPhone, tablet or desktop — right in your web browser with no app to install.
Is there a limit on how many images I can resize?
No. You can resize as many images as you like, completely free — there are no daily limits, no accounts and no watermarks.
Does the image resizer work offline?
Once the page has loaded, the resizing itself runs entirely on your device, so a brief connection drop won't interrupt your work. You only need internet to open the site.
What is the best size to resize an image for a website?
For most websites, resize full-width banner images to 1920px wide and in-content images to 800–1200px wide. Then compress them to keep files under about 200KB for fast page loading.