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 XPM

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?

Reliable BMP to XPM conversions focused on compatibility, small footprints, and archival fidelity for Unix toolchains.

Cross-platform Compatibility

Produce XPM files usable in X11, legacy UNIX tools, and simple GUI resource files.

Predictable Raster Output

Raster pixels are faithfully mapped from BMP to XPM palette entries when possible.

Fast Local Processing

Conversions run in-browser quickly without uploading large BMP assets to external servers.

Palette Optimization

Reduce BMP color sets into compact XPM palettes to shrink file sizes for embedded use.

Client-side Privacy

Files are processed in memory; source BMP data stays on your device by default.

Archival Friendly Outputs

Generate plain-text XPM suitable for inclusion in C sources and long-term archives.

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	Uncompressed or RLE	ASCII palette (text), implicit compression via reduced palette
File Size	Large (raw pixels)	Small to moderate (text + palette)
Quality	Lossless (raw)	Lossy when quantized
Transparency	Possible 32-bit alpha	Single transparent index
Metadata	Rare EXIF/ICC possible	None standardized
Primary Use	Editing, capture, archival	Icons, source-code embedding, compatibility

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your source BMP files.

Adjust Settings

Choose palette size and transparency handling before converting.

Convert

Click convert to process files locally in browser.

Download Result

Save your converted XPM files or a ZIP archive.

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 Sources

Reduce unnecessary alpha layers in BMP by compositing onto a flat background to avoid semi-transparent flattening artifacts in XPM
Convert BMP color space to sRGB before quantization to reduce hue shifts in the XPM palette
Resize BMP to intended display dimensions to minimize palette entries and improve XPM compactness
Remove embedded BMP EXIF/ICC and store externally if you require archival provenance alongside XPM
For icon artwork, simplify gradients and use fewer colors in BMP to ensure clean XPM palette mapping

Control Target Encoding

Select a larger palette size when BMP contains subtle gradients to reduce posterization in XPM output
Designate an explicit transparency key if BMP has exact fully transparent pixels to preserve shape edges in XPM
When converting photographic BMPs, accept color quantization and preview XPM to tune palette thresholds
Use dithering sparingly: enable ordered or error-diffusion only if visual tests show improved appearance in XPM
For embedded C resources, choose concise character mappings to keep XPM source readable and small

Integration & Workflow

Embed XPM into application source code by copying the ASCII array; this avoids binary loading dependencies present with BMP
Automate batch BMP-to-XPM with scripts that verify palette consistency across multiple icons for uniform UI themes
When targeting X11 toolchains, test XPM files in the actual display environment to confirm color rendering
Document original BMP checksums in your asset registry to allow reverse lookup if higher-fidelity recovery is needed
Prefer XPM for small UI assets and keep original BMPs for archival restoration or print-ready edits

Verify Converted Outputs

Compare key brand colors between BMP and XPM at 1:1 pixel sampling to ensure identity fidelity
Open the XPM with GIMP or ImageMagick after conversion to validate the transparency index and palette entries
Inspect edges of semi-transparent regions since BMP alpha may have been flattened during XPM export
Run a size and render test in target application to confirm XPM load performance and visual match
If metadata is critical, confirm external metadata stores reference the correct XPM filename and BMP origin

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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