What file formats do you support?

We support over 100 file formats including images (JPG, PNG, GIF, WebP, TIFF), documents (PDF, DOC, DOCX, TXT), videos (MP4, AVI, MOV), audio (MP3, WAV, FLAC), and many more specialized formats.

Yes, absolutely. We use enterprise-grade encryption for all file transfers. Your files are automatically deleted from our servers after conversion, and we never store or access your personal data.

What is the maximum file size?

The maximum file size for free users is 100MB per file. Premium users can convert files up to 1GB. For larger files, we recommend our batch processing feature.

How long does conversion take?

Most files convert in under 30 seconds. The exact time depends on file size and format complexity. Our advanced algorithms ensure the fastest possible conversion while maintaining quality.

Can I convert multiple files at once?

Yes! Our batch processing feature allows you to upload and convert up to 50 files simultaneously. This is perfect for bulk conversions and saves significant time.

Do I need to create an account?

No account is required for basic conversions. However, creating a free account gives you access to batch processing, file history, and priority support.

JBG to CUR

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

JBG (Max. 10MB) • Up to 5 files in guest mode

Choose Files

Or upload from:

Temporary file processingFiles are uploaded for processing and are not retained as permanent storage. Read our File Processing & Retention Policy.

2. Conversion Settings

Convert From

Convert To

Image options

Width (px)

Height (px)

Strip image metadata (EXIF, etc.)

Advanced Options

Quality

Instant download after conversion

Why Choose Our Converter?

Fast, browser-based JBG to CUR conversion tailored for designers and photographers who need icon-ready cursors.

Fast Local Processing

Convert JBG to CUR directly in your browser without uploading to servers; low latency for iterative design.

Pixel-accurate Rasterizing

High-fidelity raster output that preserves JBG pixel detail when producing CUR cursor bitmaps.

Wide Cursor Support

Generates standard .cur files compatible with Windows and common cursor-aware editors and OSs.

Custom Hotspot Placement

Set cursor hotspot coordinates so converted CUR files behave correctly in UI and prototypes.

Client-side Privacy

All decoding and encoding happen in the browser memory; no image data leaves your device by default.

Batch Conversion Ready

Process multiple JBG images into CURs in a single session to speed icon generation workflows.

Frequently Asked Questions

Find answers to common questions about our file conversion service

Still have questions?

Can't find the answer you're looking for? Our support team is here to help.

Performance Estimates

Estimated conversion times based on typical hardware.

Conversion Speed Benchmarks

1-3 seconds

12 MP image processing

12 MP, 4000x3000

Fast

3-6 seconds

24 MP image processing

24 MP, 6000x4000

Moderate

8-15 seconds

48 MP image processing

48 MP, 8000x6000

Slow

Batch Conversion Estimates

Batch Size	Total Time	Avg per Image	Efficiency
10 images (12 MP each)	20-40 seconds	2-4 seconds	High
50 images (12 MP each)	1.5-3 minutes	1.8-3.6 seconds	High
100 images (12 MP each)	3-6 minutes	1.8-3.6 seconds	Moderate
200 images (12 MP each)	6-12 minutes	1.8-3.6 seconds	Moderate

Browser Compatibility

Format support across all major browsers

Support Across Browsers

Chrome

Supported

Full Support

Firefox

Supported

Full Support

Safari

Supported

Full Support

Edge

Supported

Full Support

Advanced Format Features Support

Features	Chrome	Firefox	Safari	Edge
Alpha Channel
ICC Profiles
EXIF Metadata
16-bit Depth

Device Compatibility

Seamless conversion across desktop, mobile and tablet

Desktop

Fast multi-core processing
Batch upload support

Mobile

Responsive mobile browser workflow
Instant photo conversion

Tablet

Full tablet browser support
Touch-friendly interface

Source vs Target Format

Key technical differences between formats

Feature	Source Format	Target Format
Compression	High efficiency	Uncompressed
File Size	Small	Large
Quality	High (compressed)	Lossless
Transparency	Supported	Supported
Metadata	EXIF, ICC	EXIF, ICC
Primary Use	Photography storage/delivery	UI cursor & icons

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your JBG file; the decoder will inspect color space and resolution.

Adjust Settings

Choose cursor dimensions, hotspot coordinates, and whether to use ARGB or mask-based transparency.

Convert

Start conversion to rasterize JBG pixels and assemble the CUR container locally in the browser.

Download Result

Save the generated .cur file and test it in your target application or OS.

Ready to Convert Your Files?

Use our high-speed converter to process your images now.

Start Converting Now

Tips and Best Practices

Optimize your conversion workflow with technical recommendations.

Prepare JBG for Small Icon Use

Resize JBG to target cursor pixel dimensions before conversion to avoid resampling blur
Sharpen the JBG image mildly to preserve edge definition after downscaling to 32–64 px
Flatten any JBG layers or passes into the intended visual prior to export so the converter uses the correct frame
Convert JBG color space to sRGB when color accuracy on Windows is required because CUR lacks robust ICC support
Remove high ISO noise from JBG to prevent grain being visible at cursor scale

CUR Output and Encoding Choices

Choose 32-bit ARGB CUR if soft alpha from JBG must be retained; mask-only CUR will harden soft edges
Prefer PNG-backed 32-bit entries when available to keep color fidelity inside the CUR container
If file size matters, export smaller cursor sizes instead of heavy 24-bit bitmaps that inflate CUR size
Specify hotspot coordinates explicitly so pointer behavior matches your UI expectations after encoding
Test both mask and alpha variants: some Windows versions render AND-mask differently at different DPIs

Workflow Integration and Editors

Open generated CUR in dedicated icon editors to verify hotspot and per-size frames before deployment
If multi-resolution cursors are needed, prepare separate JBG sources per size and combine into one CUR
Use design tools that can export PNG or BMP previews from JBG to compare before committing to CUR
For cross-platform projects, also export a PNG fallback to use on systems that do not accept .cur natively
Check target application cursor caching; some apps require system restart to refresh custom cursors

Verification, Privacy, and Performance

Keep original JBG archives for re-export if CUR conversion requires different hotspots or sizes later
Because conversion runs client-side, verify memory usage when batch-processing many high-resolution JBGs
Close memory-heavy apps during large batches to reduce risk of browser slowdowns or tab crashes
Do a visual inspection of alpha edges and color shifts on target display profiles before release
Store CUR outputs in versioned asset folders distinct from photographic JBG originals to avoid confusion

Fast Processing

Close unused tabs for maximum throughput.

Client-Side Privacy

No media leaves your device.

Broad Compatibility

Output files work across all operating systems.

Pro Tip

For batch conversions, process in groups of 20-50 files to optimize memory usage and avoid browser slowdowns.

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