A 12-megapixel phone photo is 4,000 pixels wide; a profile picture, a marketplace listing or a form field wants a few hundred. This page scales images down cleanly by maximum width or height, and can hold the result under a kilobyte limit at the same time.
Type the largest side you want — 1080 for social posts, 800 for a web page, 300 for an avatar — and every image in the batch is scaled to fit inside it, keeping its proportions. Add a size cap and the tool finds the best quality that still fits.
The resizing runs on your device. Nothing is uploaded, and a whole folder can be resized in one go and downloaded as a ZIP.
How to use it
Add one photo or a batch.
Type the maximum width or height in pixels — and a KB limit if a form asks for one.
Choose JPG, PNG or WebP as the output.
Press Convert and download the result, or a ZIP for a batch.
Supported formats and limits
Input
JPG, PNG, WebP, HEIC, BMP, GIF, AVIF, SVG
Output
JPG, PNG or WebP at your pixel size
Also
A kilobyte limit at the same time
Batch
Yes
Where it runs
In your browser; nothing uploaded
Not for: Enlarging or cropping — this scales whole pictures down; the visa photo tool crops.
Frequently asked questions
Are my files uploaded to a server?
No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.
Does it distort the picture?
No. The image is scaled so its longest side fits your number and the proportions are kept exactly.
Can I make a photo bigger?
The tool only scales down. Enlarging invents pixels and makes a photo blurry; keep the original size if you need it larger.
Can I resize to exact kilobytes instead of pixels?
Yes. Set a KB limit and the tool reduces quality, and pixels if needed, until the file fits.