Resize Image
Resize images to the exact width or height you need, one at a time or in bulk. Everything happens on your device.
- 100% private
- No sign-up
- No watermark
- Unlimited files
Resizing happens on your device. Images are downscaled in stages rather than one jump, which keeps fine detail sharp instead of jagged.
Resizing that does not look resized
Shrinking an image badly is easy and very visible — fine detail turns to jagged noise, text goes crunchy, and edges pick up a shimmer. That happens when software jumps straight from the original size to the target in one step, sampling too few of the original pixels.
This tool halves the image repeatedly until it is close to your target, then makes the final step. It costs a few milliseconds and it is the difference between a resize that looks deliberate and one that looks damaged.
Batches with mixed orientations
With "keep aspect ratio" enabled you give one dimension and each image works out the other for itself. Drop in a folder of mixed portrait and landscape photos, ask for 1920 wide, and every one keeps its own proportions.
Turn the lock off to force exact dimensions on everything — useful for thumbnails or grids where a uniform shape matters more than proportion, though anything not matching that ratio will be stretched.
Common sizes worth knowing
Full HD screens are 1920 pixels wide and 4K is 3840. Images inside a blog post rarely need more than 1200. Social profile pictures are typically square at 400 to 1000 pixels. Email attachments are comfortable around 1280 wide.
Serving a 4000-pixel photo into a slot 800 pixels wide is one of the most common causes of a slow page, and resizing before upload fixes it permanently.
Frequently asked questions
Are my files uploaded to a server?
No. The conversion runs inside your browser using your device's own processor. Your files are never transmitted anywhere, which is why the tool works even if you disconnect from the internet after the page loads.
Can I enlarge a small image?
You can enter a larger size, but no tool can invent detail that was never captured. Enlarging produces a bigger, softer image rather than a sharper one.
How do I resize a batch to the same width?
Drop them all in, enter the width, and leave "keep aspect ratio" ticked. Each image calculates its own height, so nothing gets squashed.
Is there a file limit or a paywall?
There is no account, no watermark, and no upload cap. Because your device does the work, the only practical limit is your available memory. The site is funded by ads, not subscriptions.
Further reading
- Image resolution and DPI explained7 min read
- How to make images load faster on your website8 min read
- Are online file converters safe?7 min read