Image resizer
Image Resizer – Resize Images to Exact Pixel Dimensions. No watermark added by QuickConvertOnline. Free, no account needed.
About Image resizer
The image resizer changes the width and height of your images in pixels. Type a new width or height and, with the aspect ratio locked, the other side follows automatically. Unlock it to set an exact size, or use the 25%, 50% and 75% shortcuts to scale quickly.
It suits anyone preparing photos for a website, a form with size limits, a marketplace listing or an email. Resize up to 20 images in one batch, keep or change the format and adjust quality. All resizing is done in your browser, so your images are never uploaded.
How to use Image resizer
- Drop images onto the upload box, click Choose image, or paste from the clipboard.
- Enter a new Width or Height in pixels, or click 25%, 50% or 75%.
- Turn Lock aspect ratio off if you need an exact width and height that changes the proportions.
- Optionally choose an output format and quality, then click Download or Download ZIP.
Features
- Set width and height from 1 to 16,384 pixels, up to 40 megapixels per image.
- Aspect ratio lock to avoid stretching, plus percentage shortcuts.
- Batch resizing of up to 20 images; with the lock on, each keeps its own proportions.
- Keep the original format or save as PNG, JPG, WebP or AVIF.
- Quality slider for JPG, WebP and AVIF output.
- Shows the new dimensions and file size before you download.
Common uses
- Shrinking camera photos before emailing or uploading them.
- Meeting exact pixel requirements for a profile picture, ID photo upload or listing image.
- Resizing a set of blog images to the same width.
- Creating smaller preview or thumbnail versions of large images.
Tips
- Resizing to the size an image is actually displayed at is one of the most effective ways to cut file size.
- Enlarging an image cannot add real detail; the result will look softer than the original.
Frequently asked questions
How do I resize an image without distorting it?
Keep Lock aspect ratio switched on and change only the width or the height. The other dimension is calculated from the image’s original proportions, so nothing is stretched or squashed.
Can I resize many images to the same width at once?
Yes. Add up to 20 images, keep the aspect ratio locked and enter the width you want. Each image is resized to that width with its own height calculated from its proportions. Download them one by one or as a ZIP.
Can I make an image larger?
Yes, up to 16,384 pixels per side and 40 megapixels in total. Keep in mind that enlarging stretches the existing pixels; it does not add detail, so big enlargements look soft or blurry.
Does resizing reduce the file size?
Making an image smaller in pixels almost always reduces its file size, often dramatically. Choosing JPG or WebP and lowering the quality slider reduces it further.
How do I resize to an exact size like 1200 × 630?
Turn off Lock aspect ratio and type both values. If the original has different proportions, the image will be stretched to fit. To avoid that, use the aspect ratio converter, which can crop or pad the image instead.
Is my input uploaded?
Tools run in your browser. Files, text and results are not uploaded to our servers and are cleared when you leave the tool.
Your privacy comes first
Tools run in your browser. Files, text and results are not uploaded to our servers and are cleared when you leave the tool.