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.

CRW to HDR

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

CRW (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, batch-oriented CRW to HDR conversion tailored for photographers and archival workflows.

Fast Batch Processing

Process dozens of Canon CRW raw files into HDR-ready images with optimized parallelism for time savings.

Maximize Tonal Range

Preserve sensor dynamic range from CRW inputs while expanding to HDR float containers for smoother highlights.

Batch Productivity

Group CRW captures into sets and produce consistent HDR outputs to accelerate editorial and archive pipelines.

Editor-Friendly Outputs

Export HDR files compatible with common editors supporting OpenEXR and Radiance formats for further grading.

Local, Secure Processing

Conversions run in-browser memory buffers so CRW source images do not leave your device by default.

Granular Exposure Controls

Adjust exposure fusion, tone-mapping strength, and output bit depth to match finishing requirements.

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	Web delivery	Editing & print

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your source files.

Adjust Settings

Choose resolution or color options if needed.

Convert

Click convert to process files locally in browser.

Download Result

Save your converted files or 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 CRW Inputs

Sort CRW exposures by EV so exposure fusion weights align with sensor linearity
Convert CRW camera white balance tags to a neutral reference before HDR merge
Discard severely clipped CRW frames to prevent highlight artifacts in HDR output
If CRW contains Canon-specific maker notes, export sidecar copies for archival reference
Apply lens correction on CRW frames prior to merge to keep geometry consistent

Target HDR Encoding

Choose OpenEXR half-float when you need balance of precision and file size
Use 32-bit float outputs for scientific-grade dynamic range from CRW sensors
Prefer RGB working space conversion before writing HDR to ensure consistent primaries
Limit unnecessary chroma subsampling when exporting HDR to retain color fidelity
Set output file naming to include original CRW exposure indices for traceability

Workflow Integration

Import OpenEXR into your color grading app and reassign display ICC to match gallery proof
Automate batch tagging: add custom attributes mapping CRW shutter/ISO into HDR headers
Use versioned archives: keep original CRW files alongside HDR outputs for nondestructive edits
Validate channel ordering (R,G,B) upon import since some editors expect BGR ordering
For pipeline automation, script chunked batch uploads to avoid browser memory spikes

Verify Output Integrity

Compare highlights and shadows at full precision to confirm no clipping was introduced
Check HDR header for written EXIF fields and confirm essential exposure metadata
Inspect histogram and false-color exposure maps to validate fusion weights from CRW
Run spot checks on denoised areas to ensure small-detail retention after processing
Keep checksum records of original CRW and generated HDR files for archival audits

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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