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.

JFIF to HDR

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

JFIF (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, precise JFIF to HDR conversions that balance dynamic range, color integrity, and file-size tradeoffs for advanced workflows.

Fast JFIF Decoding

Quickly decode baseline JPEG/JFIF scans to raw pixel buffers for downstream HDR processing in seconds.

Dynamic Range Expansion

Tone-map or expand limited JFIF luminance into HDR containers to preserve highlight detail where possible.

Wide HDR Output Support

Produce common HDR-ready formats compatible with editors and displays that accept float or extended-range images.

Client-Side Processing

Files are converted in the browser memory buffers to avoid network upload of source images when possible.

Adjustable Tone Mapping

Control exposure, gamma, and mapping to trade file size against highlight retention for different workflows.

Preview & Verify

Instant preview lets you compare source JFIF artifacts and output HDR tonality before saving results.

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 Source JFIF

Inspect JFIF chroma subsampling (4:2:0 vs 4:2:2) and note color detail loss before upsampling
Check embedded ICC in JFIF and export it to maintain color fidelity during tone mapping
Evaluate EXIF exposure data to set consistent auto-exposure for batch HDR expansion
Avoid pre-sharpening compressed JFIFs as compression artifacts will amplify after expansion
If original has heavy DCT block artifacts, apply localized denoise prior to HDR conversion

Choose Target Encoding

Select OpenEXR for multi-channel float output when you need compositing flexibility
Use Radiance HDR for smaller float-based files when editor support is sufficient
Pick 16-bit integer output when target tools lack float support but require extended range
Enable lossless internal compression in OpenEXR to reduce size without losing range
Avoid aggressive lossy compression on HDR containers to prevent visible banding

Verify Visual Results

Compare tone-mapped SDR preview to HDR file to ensure highlight detail is preserved
Inspect 100% crops for aliasing and chroma upsampling artifacts introduced from JFIF
Validate color using ICC-aware editors to confirm white balance translation
Check for banding in smooth gradients; increase bit depth or add dither if needed
Test files in your production renderer or compositor to confirm expected dynamic range

Workflow Stability

Process batches in groups of 20-50 to avoid browser memory pressure and reduce crashes
Keep originals archived; conversion to HDR expands data and complicates reversions
Close other GPU-intensive apps during float-heavy conversions to improve throughput
Export a tone-mapped SDR copy alongside HDR for quick distribution and previewing
Confirm target application support for chosen HDR container before committing large batches

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