Resize one image or a hundred to exact pixel dimensions, a percentage, or a preset for Instagram, YouTube, LinkedIn and print. Choose whether to fit, fill-and-crop, or stretch. High-quality stepwise downscaling keeps text and edges sharp.
What is Image Resizer?
Our image resizer changes the pixel dimensions of a photo or graphic so it fits exactly where you need it: a website banner, a form upload, a social post or a print layout. You can type an exact width and height, scale by a percentage, or pick a ready-made preset such as 1080×1080 for Instagram or 2480×3508 for A4 at 300 DPI.
Cameras and phones produce images far larger than most screens or upload forms need. A 4000-pixel photo slows down a web page and gets rejected by portals that cap dimensions. Resizing fixes both problems in one step, for a single file or a whole folder at once.
How to use the Image Resizer
- Drop images.
- Enter a width (height auto-calculates), a percent, or pick a preset.
- Download resized images or a ZIP.
How Image Resizer works
A digital image is a grid of pixels. Resizing means building a new grid with a different number of pixels and working out the colour of each new pixel from the old ones. Shrinking blends neighbouring pixels together, while enlarging has to guess the colours in between, which is why upscaled photos look soft.
Drawing a large image straight down to a small size in one jump can skip pixels and leave jagged edges or shimmering patterns. This tool halves the image in steps until it is close to the target, then makes the final pass with high-quality smoothing. Text, hair and fine lines stay cleaner as a result.
The fit setting decides what happens when the new shape differs from the old one. Fit inside keeps the whole picture, Fill crops the centre to cover the box exactly, and Stretch forces the exact size. All of this runs on your device's own graphics canvas, inside the browser.
Key features of Image Resizer
Free batch resizing
Resize one picture or a hundred in the same session at no cost. There is no watermark on the output, and you get free runs every day. When you process several files, download them one by one or grab everything in a single ZIP.
Exact pixel dimensions
Type 1920 and you get 1920 pixels wide, not 1919. Leave the height at 0 and it follows the original aspect ratio automatically. Each output file name includes its final size, for example photo-1920x1080.jpg, so you can check the result at a glance.
Resized in about a second
Nothing is sent to a server, so there is no queue and no waiting for a server. A typical phone photo resizes in a second or two, and a batch runs one file after another on your own device. Very large images and older phones take a little longer.
Works on phone and desktop
Use the image resizer in Chrome, Edge, Safari or Firefox on Windows, macOS, Linux, iPhone, iPad or Android. There is no app to install. On a phone you can resize photo after photo straight from your gallery and download the copies to the same device.
Keyboard and screen reader friendly
Every control has a label and can be reached with Tab and Enter, and the preset and format menus respond to arrow keys. Progress is announced to screen readers, dark mode is one click away, and nothing on the page is timed.
Photos never leave your device
Resizing happens inside your browser tab, so your images are never sent to any server. You can confirm this in the browser's network tab. Once the page has loaded, it keeps working even if your connection drops.
What makes EZ Compress's Image Resizer different
Three ways to set the size
Many resizers give you a single width box. Here you can switch between exact pixels, a percentage from 5% to 200%, or ten presets covering Instagram, YouTube, Facebook, LinkedIn, X, HD, 4K and A4 print at 300 DPI.
Fit, fill or stretch, your choice
You decide how a change of shape is handled. Fit inside never crops, Fill crops the centre to cover the box exactly, and Stretch hits the exact size even if it distorts. Plenty of tools pick one of these silently and never tell you which.
Convert while you resize
Keep the original format, or switch to JPG, PNG or WEBP in the same step, with a quality slider for the lossy formats. That saves a second trip through a converter when a site asks for a 1200-pixel WEBP.
Stepwise downscaling for clean edges
Large reductions are done in halving steps before the final pass, which keeps edges cleaner than a single jump. It is the difference between readable product text and a fuzzy label when you shrink a 6000-pixel photo to 800.
Why use Image Resizer?
You need to resize image files more often than you might think: a job portal that wants a photo no wider than 600 pixels, a blog theme that crops anything that is not 1200×630, a slide deck that crawls because every photo is 5 MB. Shrinking the dimensions is also the quickest way to cut file size, because fewer pixels means less data to store.
As a photo resizer it helps with print too. Pick the A4 at 300 DPI preset to get 2480×3508 pixels, enough for a sharp full-page print. And because it handles batches, you can change image size for a whole product shoot or holiday album in one go instead of editing files one at a time.
Who can use Image Resizer?
Online sellers
Bring a whole product shoot to the same width so your shop grid lines up neatly, and keep each photo light enough to load quickly for shoppers on mobile data.
Bloggers and web editors
Resize hero images to the exact width your theme expects and convert them to WEBP in the same step, so pages load faster without a separate optimisation pass.
Job and exam applicants
Shrink a phone photo to the pixel limit an application portal states, such as 600 pixels wide, before the upload form rejects it on the deadline day.
Social media managers
Use the Instagram, YouTube, Facebook, LinkedIn and X presets to produce correctly sized posts and banners without memorising a single dimension or opening a design app.
Teachers and presenters
Cut oversized photos down to 1920 pixels before adding them to slides, so presentations open faster and are small enough to email to students or colleagues.
Settings explained
| Setting | What it does |
|---|---|
| Resize by | Choose between a fixed quality or an exact file-size target. |
| Width (px) | Width in pixels. Height is calculated to keep the aspect ratio unless set. |
| Height (px, 0 = auto) | Height in pixels. 0 keeps the aspect ratio. |
| Scale | Scale relative to the original size. |
| Preset | Common platform and print sizes. |
| Fit | How to place the image in the target box: fit without cropping, fill and crop the centre, or stretch. |
| Output format | Output format. "Keep original" preserves the input format where possible. |
| Quality | Higher keeps more detail but makes a larger file. 80–90% is visually identical to the original for most photos. |