Image Resizer
Change image dimensions by exact pixels, percentage or presets. Resize JPG, PNG and WebP individually or in batches with aspect-ratio and upscale controls.
How to Resize Images by Pixels or Percentage⌄
- Add one or more JPG, PNG or WebP images.
- Choose pixels, percentage or a preset as your resize method.
- Enter the dimensions or scale you want.
- Keep the aspect-ratio lock on for proportional resizing, or unlock it when you need independent width and height values.
- Choose the output format and adjust JPG or WebP quality when needed.
- Enable upscale only if you intentionally want to enlarge smaller images.
- Start the resize, review the new dimensions and download each image or the full batch as a ZIP.
Control the Dimensions, Not Just the File⌄
- Set precise width and height values in pixels.
- Scale each image relative to its original dimensions by percentage.
- Use ready-made dimensions when you do not want to enter values manually.
- Lock the aspect ratio to keep natural proportions.
- Resize several images with one shared set of settings.
- Keep PNG transparency when the result is saved as PNG.
- Choose JPG, PNG or WebP for the resized output.
- Prevent unintended enlargement by leaving upscale disabled.
- Download batch results together in a ZIP archive.
Resize Images Online by Exact Pixel Dimensions⌄
Sometimes you do not need a full photo editor — you simply need an image to be the right size. Voymira Image Resizer lets you set the width and height you need in pixels and create a resized copy directly from your browser.
You can use it when a website, form, profile, marketplace or design requires specific image dimensions. For example, if you need a square 300×300 image, a wider banner, a smaller profile picture or a custom width and height, enter the dimensions and resize the image without going through a complicated editing workflow.
Keeping the aspect ratio enabled helps preserve the original proportions of the image. Change the width and the height can follow proportionally, which is useful when you want a smaller or larger image without making people, logos or objects look stretched. If a platform requires an exact width and height, you can instead use the dimensions required for that destination.
Voymira works with common image formats including JPG, PNG and WebP. It is useful for photos, screenshots, product images, thumbnails, graphics and other images that need to fit a particular space on a website or online service.
Image dimensions and file size are not the same thing. Resizing changes the number of pixels across the width and height of an image. If your main goal is instead to reduce a file from several megabytes to a smaller KB or MB target, the Image Compressor is designed for that job.
The resizer is especially useful when you already know the dimensions you need. Instead of repeatedly resizing and checking the result, enter the target width and height, process the image and download the new version. Your original file remains unchanged, so you can keep it and create another size whenever you need one.
Common Uses for an Online Image Resizer⌄
- Profile pictures and avatars — Resize a photo to the exact width and height required for a profile, account page or avatar. Square dimensions such as 300×300 or other custom sizes are useful when a platform expects an image to fit a fixed frame.
- Website images and thumbnails — Large camera photos are often much wider than the space where they will actually appear. Resize them to more appropriate pixel dimensions before using them for thumbnails, article images, cards, galleries or other parts of a website.
- Online forms and upload requirements — Some application forms, portals and online services ask for an image with specific pixel dimensions. When you already know the required width and height, you can resize the image before uploading it instead of repeatedly trying different files.
- Product and marketplace images — Product photos often need consistent dimensions so listings look cleaner and more uniform. Resize images to a common width and height before adding them to a shop, catalogue or marketplace listing.
- Social and content graphics — Prepare square, landscape or portrait images for posts, covers, previews and other online content. You can enter the dimensions required for the design instead of cropping or resizing the image blindly.
- Banners and wide images — Resize landscape photos and graphics for website headers, presentation backgrounds, wide covers or other spaces that require a specific width and height.
- Screenshots and interface images — Screenshots can be much larger than necessary when captured from high-resolution displays. Resize them to dimensions that are easier to include in documentation, tutorials, websites or presentations.
- Custom pixel dimensions — Not every project uses a standard preset. If you have been given an exact size such as 300×300, 1280×720, 1920×1080 or another width and height, enter those dimensions and prepare the image for that particular use.
Pixels, Proportions and Upscaling: What to Check⌄
- Keep the aspect-ratio lock enabled for photographs and other images that should retain their natural proportions.
- Use exact pixels when a website or form gives you a required width and height.
- Use percentage resizing when you simply want a proportional copy such as 50% or 75% of the original dimensions.
- Avoid large upscales unless they are necessary because increasing dimensions cannot recreate detail that was never captured.
- Choose PNG when transparency needs to remain transparent.
- Use JPG for photographs when transparency is not required.
- WebP is useful when you want a modern image format for web use.
- Check the resulting pixel dimensions before uploading the image to its final destination.
- Keep the original file separately when you may need its full dimensions again later.
Frequently Asked Questions
How do I resize an image to exact pixel dimensions without stretching it?⌄
Enter the width or height you need and keep the aspect-ratio lock enabled. The matching dimension is calculated proportionally so the image keeps its original shape. Unlock the ratio only when you intentionally need independent width and height values.
Can I resize several JPG, PNG or WebP images at once?⌄
Yes. Add multiple images, choose one resize configuration and process them as a batch. Each result can be downloaded separately, and multiple results can also be downloaded together as a ZIP.
Should I resize an image by pixels or by percentage?⌄
Use pixels when you know the exact dimensions required by a website, form or layout. Use percentage when you want to scale the original image proportionally without calculating the new width and height yourself.
Can I enlarge an image beyond its original dimensions?⌄
Yes. Enable the upscale option when larger dimensions are required. Enlarging adds pixels but cannot recreate original detail that was never captured, so a large upscale can look softer than the source image.
Does changing image dimensions also change the file size?⌄
Often, yes. An image with fewer pixels commonly needs less data, but the final file size also depends on the image content, output format and encoding quality. Image resizing controls dimensions; file compression specifically targets storage size.
What is the difference between resizing an image and compressing it?⌄
Resizing changes the width and height of the image in pixels. Compression focuses on reducing the amount of data used to store the image. A resized image may also become smaller in file size, but the two operations solve different problems.
