CUR to JAR Converter
Processing entirely on your device — large files may take a moment.
CUR is the Windows cursor format — structurally an ICO file with a hotspot, holding small bitmap cursor images. Repack a JAR as ZIP to inspect classes and resources with any unzip tool.
iLoveConverter processes everything locally on your computer, which makes it private and fast: no upload wait, no server storage, no limits. Add as many files as you like — batch conversion is built in.
How CUR compares to JAR
| CUR | JAR | |
|---|---|---|
| Compression | BMP/PNG members (as ICO) | DEFLATE entries |
| Best for | Windows cursors and UI assets | Java apps and libraries |
How to convert CUR to JAR
- 1
Select your files
Select your CUR file — it never leaves your device.
- 2
Convert instantly
The engine packs the file, byte for byte, into a JAR container — no re-encoding, no quality change.
- 3
Download results
Download the finished JAR archive.
About the CUR format
CUR is the Windows cursor file: structurally identical to ICO (several small bitmap sizes bundled), with the addition of a hotspot coordinate that marks which pixel is the pointer's tip. Windows ships most of its system cursors as CUR files.
Designers customizing cursors or extracting UI assets meet CUR files that no modern image tool opens. Converting to PNG (the largest embedded size) makes them editable, viewable and reusable in web apps that implement custom cursors.
+Strengths
- ✓Windows cursor standard
- ✓Multiple sizes in one file
- ✓Hotspot data travels with the image
!Limitations
- −Tiny sizes only (usually ≤48px)
- −Meaningless outside cursor use
About the JAR format
A JAR is a ZIP with Java manners: class files, a MANIFEST.MF, resources and optional signatures. Any tool that opens ZIPs can open it — but converting to a plain ZIP strips the “is this executable?” ambiguity and makes browsing the contents painless.
Useful for auditing dependencies, extracting embedded resources, or checking what a library actually ships before adding it to a build.
+Strengths
- ✓Standard Java delivery format
- ✓ZIP-based, tools abound
- ✓May carry signatures and manifests
!Limitations
- −Not a installer — just a package
- −Contents are class files, not source
Why convert CUR to JAR?
There is a concrete reason this conversion exists: Tiny sizes only (usually ≤48px) JAR sidesteps that — Standard Java delivery format If that is your situation, the tool above settles it in seconds, entirely on your device.
Frequently asked questions
Is this CUR to JAR converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Will I lose quality converting CUR to JAR?
No — JAR is a lossless format, so every pixel of the converted image matches your original CUR file. You can also adjust the quality/size balance before converting when the target format supports compression.
Can I convert several CUR files at once?
Yes — drop as many files as you like into the tool and they are converted in one batch. When more than one file comes out, everything is bundled into a ZIP for a single download.
What happens to EXIF data and other metadata?
Conversions here re-encode the image, and re-encoding generally does not carry the original metadata over. If the EXIF data of your CUR files matters (camera model, GPS, timestamps), keep the original file as the master and treat the converted copy as the shareable version.