Image Resizer
Resize JPG, PNG and WEBP images to exact pixel dimensions or by percentage — in bulk, in seconds.
- Free
- No sign-up
- Batch + ZIP
- No uploads
How to use the Image Resizer
- 1
Add your images
Drop JPG, PNG or WEBP files onto the box above, browse, or paste with Ctrl+V.
- 2
Set the new size
Enter a width, a height, or a percentage. Keep “lock aspect ratio” on to avoid stretching.
- 3
Download resized images
Each file is resized instantly. Download them one by one or as a ZIP.
Why resize images?
Cameras and phones create images far bigger than most screens need. Resizing to the size you actually use makes files dramatically smaller and is often required for social media posts, online stores, profile pictures and upload forms.
JPG (also called JPEG) is the most widely used photo format. It uses lossy compression to keep files small and works everywhere, but it does not support transparency and loses a little quality every time it is re-saved.
PNG is a lossless format that keeps every pixel exactly and supports transparent backgrounds. It is ideal for logos, icons, screenshots and graphics, but photos saved as PNG are often very large.
WebP is a modern image format created by Google. It supports both lossy and lossless compression plus transparency, and typically produces files 25–35% smaller than JPG at the same visual quality. All modern browsers support it.
Why people use ReadySetConvert
100% private
Images are processed on your device and never uploaded anywhere.
Lightning fast
No waiting for uploads or queues — results appear instantly.
Batch friendly
Convert dozens of images at once and download them as a ZIP.
Free forever
No sign-up, no watermarks, no daily limits.
Frequently asked questions
Will resizing stretch my image?
Not if “lock aspect ratio” is on (the default). The image is scaled to fit your width and height without distortion.
Can I make an image bigger?
Yes, up to 400%, but enlarging cannot add real detail, so large increases may look soft.
Is this image resizer tool free?
Yes. It is completely free with no sign-up, no watermarks and no limits on the number of images.
Are my images uploaded to a server?
No. Your images are processed entirely inside your browser, so they never leave your device. That makes it private and very fast, even for large files.
Can I resize many images at once?
Yes. Drop or select as many images as you like. Each one is processed in turn, and you can download them one by one or all together as a ZIP file.
Does it work on iPhone, Android and Mac?
Yes. It runs in any modern browser on phones, tablets and computers. Nothing needs to be installed.