Resize Images
Change the dimensions of many images at once: set the longest side, an exact width or height, or a percentage. The proportions and file format stay the same.
How to resize images
- 1Choose your images, or drag them onto the page.
- 2Pick how to resize: by longest side, by width and height, or by percentage.
- 3Enter the size. The aspect ratio is kept, so images are never stretched.
- 4Download the resized images one by one, or all together as a ZIP.
Choosing the right size
“Longest side” is the easiest way to resize a mixed batch of portrait and landscape photos: every image ends up with its longer edge at the size you choose. Common choices are 1080 px for social media, 1920 px for full-screen display and 2048 px for websites and email.
“Width & height” fits each image inside a box. Leave one of the two empty to set just the width (for a blog column, say) or just the height (for a row of thumbnails). Images are never stretched or cropped; the proportions stay as they are.
Each image keeps its format: JPGs stay JPGs and transparent PNGs stay transparent. By default, images that are already smaller than the size you choose are left at their size, because enlarging can’t add detail and only makes files bigger. Tick “Allow enlarging” if you need every image to be the same size anyway.
100% private
Images are processed right in your browser. Nothing is ever uploaded to a server.
Batch processing
Add hundreds of images at once and download them all in a single ZIP or PDF.
Fast & free
Uses every core of your CPU. No sign-up, no watermarks, no file limits.
Frequently asked questions
Will resizing stretch or crop my images?
No. The aspect ratio is always kept and nothing is cropped. When you set both a width and a height, each image is scaled to fit inside that box.
What size should I use for Instagram, email or websites?
Instagram shows images up to 1080 px wide. For email attachments, 1600–2048 px on the longest side is plenty. Most websites look sharp with 1920–2560 px for full-width images and 800–1200 px for images inside text.
Does resizing reduce quality?
Making an image smaller removes pixels, but on screen it looks just as sharp at its new size. JPG and WebP images are saved again at a high quality (90% and 85%). Enlarging can’t add detail, so enlarged images look softer.
Are my photos uploaded anywhere?
No. Everything runs inside your web browser using WebAssembly. Your photos never leave your device, and we never see them.
Is there a limit on the number or size of images?
No. Add as many as you like. Images are processed a few at a time, so very large batches may take a while on older phones, but there are no limits, watermarks or sign-ups.
What happens to photo metadata like location?
Hidden metadata (EXIF) such as GPS location, camera details and timestamps is removed from the images you download. The one exception is an image handed back unchanged because it could not be made any smaller.
Can I use it on my phone?
Yes. It works in any modern browser on Android, iPhone, Windows, Mac, Linux and ChromeOS.