Image Resizer

Drop your image here

or click to browse

PNG, JPG, WebP, GIF

How to Resize an Image Online

Choose a Resize Mode

Pick By percentage to scale, By dimensions for exact pixels, or Social presets for platform sizes such as an Instagram post or a YouTube thumbnail.
Add Your Image

Drag and drop the image onto the upload area, or click to browse. PNG, JPG, WebP and GIF open in every browser.
Set the Size or Pick the Presets

Move the percentage slider, type the width and height with Maintain aspect ratio on or off, or tick the social sizes you need and adjust each crop with zoom and drag.
Choose the Format and Download

Pick PNG, JPG or WebP and set the quality for JPG and WebP. Click Resize Image or Generate Images, then download each file or, for presets, a ZIP of all of them.

Common Use Cases

Website and Blog Optimization

Large images slow down page loads. Resize photos to the dimensions your layout displays, and choose WebP or JPG with a sensible quality to cut the file size further.

Social Media Posts, Profiles and Covers

Social presets crop one photo to the profile, cover, post and story sizes for Facebook, Instagram, X, LinkedIn, YouTube, Pinterest and TikTok, so nothing is cropped awkwardly after upload. Download them all as one ZIP.

Email Attachments and File Sharing

Shrink a high-resolution photo before you attach it to an email or share it through a service with an upload limit.

Print and Design Projects

Set exact pixel dimensions to match a print layout, a slide or a design mockup, and keep the size consistent across a set of assets.

Why use our Image Resizer?

Resizing images is essential for faster web pages, for the exact frames social networks expect, and for preparing photos for print. This page does all three in one place: scale by percentage, set exact pixel dimensions with or without the aspect ratio, or pick social media presets for Facebook, Instagram, X, LinkedIn, YouTube, Pinterest and TikTok and crop one photo to every size at once. The image is drawn on a canvas in your browser and is not uploaded.

The FindUtils Image Resizer resizes an image by percentage, to exact pixel dimensions, or to social media presets. Shrink a 4000-pixel photo for a blog post, scale a thumbnail up for a slide, or crop one photo to every size Facebook, Instagram, X, LinkedIn, YouTube, Pinterest and TikTok ask for. The image is redrawn on a canvas in your browser and is not uploaded.

By percentage scales both sides by the same factor, from 10% to 200%. By dimensions takes a width and height in pixels and can keep the aspect ratio for you. Both save as the original format, PNG, JPG or WebP, with a quality setting for JPG and WebP. Social presets bundle the sizes from a 180x180 Facebook profile photo to 2560x1440 YouTube channel art; each preset fills its frame, starts centred, and can be zoomed and dragged, and every selected size is generated at once and saved one by one or as a ZIP.

Pair it with the Image Compressor to reduce file size further, or the Image Converter to change formats in bulk. Use the Aspect Ratio Calculator to plan custom proportions, and strip location data and other metadata with the EXIF Remover before you share a photo publicly.

How it compares

Many online image resizers upload your files to a server, add watermarks, or keep batch features behind a subscription. This page resizes on a canvas in your browser, with no account, no watermark and no daily limit; the practical ceiling is what your browser can hold in memory.

Desktop editors such as Photoshop or GIMP do far more, but they need installing and take longer for a plain resize. A generic resizer also leaves you to look up each platform's size; the Social presets here carry them, with a crop for each one. When you need layers, filters or retouching, the FindUtils Photo Editor runs in your browser too.

Pro Tips for Better Results

Always start from the largest version of your image. Resizing down preserves quality, but resizing up introduces blur and artifacts.
Use PNG format when your image contains text, logos, or sharp edges. Choose JPEG or WebP for photographs and complex scenes.
For web images, 72-96 DPI is sufficient. Save 300 DPI for print projects only, as higher DPI increases file size with no visible benefit on screens.
When resizing for retina displays, double the target dimensions (e.g., use 600x400 pixels for a 300x200 display slot) and let the browser scale down.
In Social presets, place the subject near the centre of the photo: every preset crops from the centre until you move it.
Tick every social size you need before you click Generate Images; Download All (ZIP) then saves the whole set in one file.

Frequently Asked Questions

How do I resize an image by percentage?

Choose By percentage, drop the image, and move the slider between 10% and 200%. 50% halves the width and the height and 200% doubles them; the aspect ratio is kept. The new size is shown under the slider before you click Resize Image.

How do I resize an image to an exact width and height?

Choose By dimensions and type the width and height in pixels. With Maintain aspect ratio on, changing one side updates the other so the picture is not stretched. Turn it off to force both numbers; the image is then scaled to fill them exactly.

How do I resize an image for Instagram, Facebook, X, LinkedIn, YouTube, Pinterest or TikTok?

Choose Social presets, open a platform, and tick the sizes you need, such as Instagram Square Post (1080x1080), YouTube Video Thumbnail (1280x720) or X Header Image (1500x500). Then add your image, adjust the crop, and click Generate Images. Each result is exactly the preset's width and height.

How do the social presets crop my image?

Each preset fills its frame completely, so a photo with a different shape is cropped rather than stretched or padded. The crop starts at the centre. Select a size in Crop & Position, then zoom in and drag the image to choose what stays inside the frame; each size keeps its own crop.

Can I resize one image to several sizes at once?

Yes, in Social presets. Tick every size you need across the platforms, click Generate Images, and each size is made from the same photo. Download one at a time, or use Download All (ZIP) to save the set in one file. The percentage and pixel modes make one resized image at a time.

What sizes do the social presets use?

Facebook: profile 180x180, cover 820x312, post 1200x630, story 1080x1920. Instagram: profile 320x320, square 1080x1080, portrait 1080x1350, landscape 1080x566, story or reel 1080x1920. X: profile 400x400, header 1500x500, post 1200x675, card 800x418. LinkedIn: profile 400x400, cover 1584x396, post 1200x627, company logo 300x300. YouTube: thumbnail 1280x720, channel art 2560x1440, profile 800x800. Pinterest: pin 1000x1500, profile 165x165. TikTok: profile 200x200, video cover 1080x1920. Platforms change their guidance, so check the platform's help pages before a campaign.

What image formats are supported?

Any image your browser can open: PNG, JPG, WebP and GIF everywhere, and formats such as AVIF where the browser supports them. The result is saved as PNG, JPG or WebP, or in the original format when the browser can write it. A GIF is saved as PNG, and only its first frame is kept. A HEIC photo from an iPhone opens only in browsers that decode HEIC; elsewhere, convert it to JPG first.

Will resizing affect image quality?

Making an image smaller usually looks sharp. Making it larger cannot add detail, so an enlarged image looks softer, and a small photo stretched to a large social preset looks blurry. For JPG and WebP, the Quality slider trades file size against compression artifacts; PNG is lossless.

How do I resize an image without losing quality?

When reducing size, set the quality slider to 90-100% and choose PNG for lossless output. Avoid enlarging images beyond their original resolution, as this always introduces some softness regardless of the tool used.

Is my image uploaded to a server?

No. The image is read from your device and redrawn on a canvas in your browser, and the page sends no request with it. The download is made in the tab as well.

Is there a file size limit?

There is no fixed limit. The image is decoded in your browser's memory, so a very large photo is limited by your device, and browsers cap how large a canvas can be, which bounds the output size; phones allow a smaller canvas than desktops. The pixel mode accepts up to 16384 pixels on a side.

What is the best format for social media images?

JPG suits photographs and keeps files small. PNG suits images with text, logos or transparency. WebP is often smaller at similar quality, but check that the platform you post to accepts WebP uploads.