What happens when you convert JPG to CUR
- The image is decoded and written as a Windows cursor with its hotspot in the top-left corner.
- Cursors are small: the image is scaled to fit the size you choose, 32 by 32 pixels by default, with the hotspot (the clicking point) at the top-left corner.
- CUR is lossless, so no further detail is lost, but it cannot restore detail the JPG compression already removed. Expect a larger file.
How to convert JPG to CUR online
- Press "Choose JPG files" and select one or more files, or drag them onto the box. You can add files of any size your device can hold in memory.
- Adjust the settings if you need to. The output is lossless, so there is no quality setting to worry about.
- Press "Convert to CUR". Images convert in a second or two each.
- Save each CUR with its download button. Close the tab and every trace of the files is gone from memory.
Why convert JPG to CUR?
JPG files usually come from camera photos, web images and email attachments. People convert them to CUR because CUR is the format Windows and web pages use for custom mouse pointers.
In short, JPG is good at what it was made for, and CUR is the more practical choice when the file has to open, upload or print somewhere else. JPG opens in every browser and image viewer, while CUR used by Windows as a mouse pointer; browsers accept it in the CSS cursor property.
How to convert JPG to CUR on Windows, Mac, iPhone and Android
On Windows
Open this page in Chrome, Edge or Firefox, drag your JPG files in from File Explorer, and press Convert. Each CUR is saved to your Downloads folder.
On a Mac
Safari, Chrome and Firefox all work. Drag the JPG files from Finder onto the drop zone and the CUR files land in Downloads.
On iPhone and iPad
Open the page in Safari and tap Choose JPG files. You can pick from Photos or from the Files app. The converted CUR appears in Files, in the Downloads folder; to put it in your photo library, open it there, tap Share and choose Save Image.
On Android
Open the page in Chrome, tap Choose JPG files and pick them from Files or your gallery. The CUR is saved to the Download folder, where any file manager can find it.
Best settings for JPG to CUR
Windows uses 32 by 32 pixel cursors at normal display scaling and 48 or 64 pixels on high-resolution screens. Start from an image with a transparent background, so only the pointer shape shows, and keep the tip of the pointer in the top-left corner, because that is where the hotspot is placed.
JPG vs CUR: the differences
| JPG | CUR | |
|---|---|---|
| Full name | Joint Photographic Experts Group image | Windows cursor |
| Type | image | image |
| Created by | the Joint Photographic Experts Group | Microsoft |
| First released | 1992 | 1985 |
| Compression | Lossy | Lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Vector or raster | Raster | Raster |
| Colour | 24-bit colour, 16.7 million colours | up to 32-bit colour with alpha, usually 32 by 32 or 48 by 48 pixels |
| In a browser | opens in every browser and image viewer | used by Windows as a mouse pointer; browsers accept it in the CSS cursor property |
| Common uses | camera photos, web images and email attachments | custom mouse pointers for Windows and for websites |
| MIME type | image/jpeg | image/x-win-bitmap |
About JPG and CUR files
What is a JPG file?
JPG discards fine detail the eye is least sensitive to, which is why a photo shrinks to a tenth of its raw size but text and sharp edges pick up blocky artefacts. Every re-save at a lossy setting throws away a little more.
What is a CUR file?
A CUR file is built like an ICO icon, with one addition: a hotspot, the exact pixel that does the clicking. Windows reads cursors from CUR files, and web pages can use them through the CSS cursor property.
JPG to CUR not working? Common problems
- Colours look slightly different. Browsers convert images to the standard sRGB colour space when they decode them, so wide-gamut and CMYK images can shift a little.
- A phone photo comes out upright even though it looked sideways elsewhere. That is correct: the rotation stored in the photo is applied during conversion, so the CUR is always the right way up.
- The file is bigger than expected. The CUR is usually larger, because it stores every pixel without compression losses, while the JPG was compressed lossily.
Convert JPG to CUR from the command line
If you work in a terminal, ImageMagick converts JPG to CUR in one line:
magick input.jpg output.curTo convert every JPG in a folder at once, use magick mogrify -format cur *.jpg. The converter on this page does the same job without installing anything.
JPG to CUR converter FAQ
Will I lose quality converting JPG to CUR?
No further quality is lost, because CUR is written losslessly. Detail the JPG compression already removed does not come back.
Why is the CUR a different size from the JPG?
The CUR is usually larger, because it stores every pixel without compression losses, while the JPG was compressed lossily.
Are my JPG files uploaded anywhere?
No. The conversion runs inside this browser tab using your browser's own image decoder, so your files stay on your device. You can disconnect from the internet after the page has loaded and it still works.
Can I convert several JPG files to CUR at once?
Yes. Select or drop as many files as you like; they are converted one after another and each gets its own download button.
How do I open a CUR file?
CUR used by Windows as a mouse pointer; browsers accept it in the CSS cursor property. CUR is common for custom mouse pointers for Windows and for websites.
Is this JPG to CUR converter free?
Yes. There is no sign-up, no watermark and no limit on how many files you convert. The site is paid for by advertising, and because conversions run on your device there is no server cost per file.
Can I convert JPG to CUR on my phone?
Yes. The converter works in Safari on iPhone and iPad and in Chrome on Android. Converted files are saved to the Downloads folder.