Shrink a JPG to the pixel size a website, form or email needs (or enlarge a small one) and keep it a JPG. High-quality stepwise downscaling keeps edges clean, and the quality slider lets you trade a little detail for a much smaller file.
What is Resize JPG?
Resize JPG files to a new width and height in pixels, or by a percentage, and get JPGs back. This tool is built for photos: it shrinks large camera and phone shots to the size a website, email or upload form expects, and saves the result as a standard JPEG that opens anywhere.
It also accepts PNG, WEBP and HEIC files and turns them into JPGs at the new size, which is handy when a portal only takes JPEG. A quality slider lets you balance sharpness against file size before anything is saved.
How to resize JPG
- Drop JPG files (batch is fine).
- Enter the width in pixels (height follows the aspect ratio) or choose a percentage.
- Download the resized JPGs or a ZIP.
How Resize JPG works
JPEG is a lossy format. It splits a photo into small blocks, describes each block with a set of frequency values and throws away the fine detail your eye is least likely to miss. That is why JPGs are small, and also why every re-save loses a little more information.
Resizing a JPG therefore has three stages: decode the file to raw pixels, resample those pixels to the new dimensions, then encode a fresh JPEG once. The quality setting controls the last stage. Around 90% is visually identical to the original for most photos, while 70–80% gives much smaller files with only slight softening.
Because JPEG has no transparency, any transparent areas in a PNG or WEBP you drop in are filled with white. Everything happens in your browser, using the same image engine that displays web pages.
Key features of Resize JPG
Free JPG resizing in bulk
Resize a whole batch of JPGs in one run without paying or seeing a watermark. Drop a whole folder of holiday photos, set one width, and download the lot as a ZIP when the batch finishes.
Pixel-exact width and height
Enter 1600 and the JPG comes out exactly 1600 pixels wide, with the height following the original proportions when you leave it at 0. Choose Fill to hit an exact width and height by cropping the centre.
One encode, no waiting
Each photo is decoded, resized and encoded once, right on your device. Nothing waits in a server queue, so a typical phone shot is ready in a second or two, and a batch of fifty takes well under a minute on a modern laptop.
Runs in any modern browser
Use it on Windows, macOS, Linux, iPhone, iPad or Android in Chrome, Edge, Safari or Firefox. The layout adapts to small screens, so you can resize JPGs straight from your phone's camera roll.
Accessible, keyboard-ready controls
The width, height, percentage and quality controls are labelled and work with the keyboard alone. Progress is read out by screen readers through a live region, the page supports browser zoom and dark mode, and there are no time limits.
Your photos stay private
JPGs are processed in the browser tab and stay on your device, so personal photos, ID scans and client work do not pass through anyone's server. You can verify it in the network tab, and it keeps working offline after the page loads.
What makes EZ Compress's Resize JPG different
You control the JPEG quality
Many online resizers re-save at a hidden, often low, quality. Here the slider runs from 40% to 100% and defaults to 90%, so you can keep photos crisp or squeeze them hard for a size-limited form.
Any photo in, JPG out
Drop PNG, WEBP or iPhone HEIC files alongside your JPGs and they all come out as JPEG at the new size. You do not need a separate converter first, and any transparent areas are filled with white.
Clean downscaling
Big reductions are done in halving steps before a final high-quality pass, so fine detail such as text on signs or strands of hair stays clean rather than turning jagged.
Why use Resize JPG?
Most cameras save JPGs of 4000 pixels or more, far bigger than any screen shows. When you resize JPEG photos to 1600 or 1920 pixels before uploading them, pages load faster, emails send, and portals stop rejecting your files for being too large.
A dedicated jpg resizer is also the right choice when the output must stay a JPEG: online forms, print shops, real estate listings and older systems often refuse PNG or WEBP. If you need to change JPG size for several files at once, set the width once and every photo in the batch matches.
Who can use Resize JPG?
Estate agents
Resize property photos from a DSLR to the width a listing site recommends, keeping them as JPG so they upload without format errors.
Students
Shrink a phone photo of a certificate or ID card to a sensible width before attaching it to a university or scholarship application form.
Wedding and event photographers
Produce web-sized JPG previews of a full gallery in one batch, so clients can browse quickly before ordering full-resolution prints.
Small business owners
Resize JPG product shots to a consistent size for a website or marketplace, and lower the quality slightly to keep pages quick on mobile.
Families sharing photos
Cut big holiday JPGs down before emailing them to relatives, so the message stays under attachment limits and downloads fast on slow connections.
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. |
| Fit | How to place the image in the target box: fit without cropping, fill and crop the centre, or stretch. |
| Quality | Higher keeps more detail but makes a larger file. 80–90% is visually identical to the original for most photos. |