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.

BMP to CUR

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

BMP (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?

Quickly convert BMP bitmaps into Windows cursor files (CUR) tailored for web and desktop icon workflows.

Fast Local Conversion

Process BMP images into CUR icons instantly in your browser without server uploads or delays.

Accurate Pixel Mapping

Maintain original BMP pixel data when raster-compatible; CUR preserves rendered bitmap appearance.

Windows Cursor Ready

Produce CUR files that target Windows and many icon toolchains used by web-based prototypes.

Client-Side Processing

Files are converted in-browser; source BMP contents do not leave the user device by default.

Control Output Size

Choose target icon dimensions and hotspot placement to optimize for web UI and system cursors.

Transparency Handling

Convert indexed or 24-bit BMP into CUR with an alpha mask where applicable; verify results for complex transparency.

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

Windows cursor integration and high-fidelity hotspot placement
Local file export for icon toolchains

Mobile

Preview CUR as downloadable asset; mobile OS may not use CUR as system cursor
Use for web-based cursor previews and prototypes

Tablet

Touch-target hotspot simulation for UI testing
Exportable CUR for cross-device design reviews

Source vs Target Format

Key technical differences between formats

Feature	Source Format	Target Format
Compression	Often uncompressed BMP	Uncompressed or RLE in CUR
File Size	Medium to large depending on depth	Potentially larger with multiple icon sizes
Quality	Exact bitmap pixels	Lossless when same depth used
Transparency	Optional alpha in 32-bit BMP	Supported via mask or ARGB
Metadata	Can include EXIF/headers	Not designed for EXIF/ICC
Primary Use	Image storage and editing	System cursors and icon assets

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your BMP file; high-resolution BMPs are accepted but may scale.

Adjust Settings

Choose target icon size, color depth, and hotspot coordinates for precise cursor behavior.

Convert

Start conversion; the tool maps BMP pixels to CUR frames and applies transparency rules.

Download Result

Save the CUR file and test in your target application; open in an icon editor if adjustments are required.

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 BMP Source

Ensure BMP is flattened to the final visual composition before conversion to avoid lost layers
If using 32-bit BMP alpha, verify channel premultiplication to prevent edge halos in CUR
Resize BMP to intended cursor dimensions to minimize resampling artifacts in CUR
Convert palette-based BMP to 24-bit if you need full RGB fidelity in the icon
Embed hotspot coordinates in your workflow notes since BMP cannot store cursor hotspot metadata

Target CUR Encoding

Choose a single color depth in CUR to reduce file size when multiple depths are unnecessary
Include only the icon sizes you need (e.g., 32x32) instead of all standard sizes to shrink the CUR
Use RLE compression for indexed images when supported to lower file size without quality loss
When preserving alpha, output ARGB frames in CUR rather than relying on legacy AND/XOR masks
Test saved CUR in an icon editor to confirm mask and hotspot encoding before deployment

Workflow Integration

Export CUR alongside PNG fallbacks for web use where browsers do not accept CUR as cursor
Document original BMP color space and note any downsampling applied during conversion
Use icon editors to add multiple sizes into one CUR if you need a comprehensive cursor asset
Automate batch conversions for UI sets but inspect a sample to ensure consistency across sizes
Keep original BMPs archived so you can re-export with different hotspot or sizing choices later

Verification & Performance

Preview the CUR at native cursor sizes to verify edge crispness and hotspot accuracy
Check transparency on both light and dark backgrounds; alpha blending can vary by host OS
For large batches, split BMPs into groups of 20-50 to prevent browser memory pressure
Confirm that converting 16-bit BMPs results in acceptable color when downsampled to 24/32-bit CUR
After conversion, open CUR in your target environment to ensure it registers as a system cursor

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.

Explore related conversion tools for image workflows

Related Conversion Tools

Explore our complete suite of image conversion tools. From basic format changes to advanced optimizations, we have everything you need for your image processing workflow.

Best Match