# Resize an Image - Free, No Upload

Page: https://hirantha.me/tools/image-resize
Part of: Hirantha Sandaruwan Lakshan free tools (https://hirantha.me/tools)
Updated: 2026-07-31

Resize a photo by percentage, or an exact width or height.

This is a free tool that runs in the browser: open the page to use it. File tools process files on the visitor's own device; files are never uploaded or stored. No account, sign-up, payment or watermark.

Resize a photo by percentage, or to an exact width or height, entirely in your browser. The other dimension always scales proportionally, so the image never comes out stretched.

Percentage mode scales both dimensions by the same factor - useful for a quick, proportional shrink.

Exact width or exact height mode fixes one dimension and calculates the other automatically to preserve the original aspect ratio.

The resized image is re-encoded in its original format, so a JPG stays a JPG and a PNG stays a PNG.

Q: Will resizing stretch or distort my image?
A: No - only one dimension is set directly, and the other is calculated automatically to keep the original proportions.

Q: Can I resize several images at once?
A: Yes, drop in a batch and each one resizes using the same setting.

Q: Does resizing change the image format?
A: No, the output keeps the same format as the file you uploaded.

Q: Is my image uploaded anywhere?
A: No, resizing happens entirely in your browser tab.

Q: What size should I use for a website or social post?
A: 1920px on the longest side covers most full-width web images. 1080px suits a typical social post. Going much beyond the size it will actually be displayed at only costs bandwidth.

Q: Can I make an image bigger without it looking blurry?
A: Not really. Enlarging invents pixels that were never captured, so the result gets soft. Resizing down is lossless-looking; resizing up never adds detail that wasn't there.

Q: Does resizing remove EXIF data?
A: Yes. Redrawing through a canvas produces a fresh image without the original metadata, so location and camera details don't survive the resize.

Q: Why is there a maximum size?
A: Browsers cap how large a canvas can be, and on iOS that cap is low enough that exceeding it crashes the tab rather than raising an error. The limit keeps you the right side of it.

Sources: Image file type and format guide - MDN (https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Image_types); createImageBitmap() - MDN (https://developer.mozilla.org/en-US/docs/Web/API/createImageBitmap)

Related tools:

- [Image compressor](https://hirantha.me/tools/image.md): Shrink a photo or convert it between JPG, PNG, and WebP.
- [Crop an image](https://hirantha.me/tools/image-crop.md): Crop a photo to any rectangle, with optional aspect ratio presets.
- [Remove EXIF data](https://hirantha.me/tools/remove-exif.md): Strip location and camera metadata from a photo before sharing it.
- [Rotate and flip an image](https://hirantha.me/tools/image-rotate-flip.md): Rotate a photo 90, 180 or any angle, flip it left to right or top to bottom, preview it live and save it as PNG, JPEG or WebP. Nothing is uploaded.
- [Image filters and adjustments](https://hirantha.me/tools/image-filters.md): Adjust brightness, contrast, saturation, hue, grayscale, sepia, invert and blur with a live before and after view. Same result in every browser.