ChangeMyFile - Free Online File ConverterChangeMyFile
Trusted by thousands of users worldwide

Convert HEIC to BMP – Uncompressed Bitmap Quality

Convert HEIC to BMP – Uncompressed Bitmap Quality

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

Read Terms of use before using

Share:fXin@
500+ Formats
Lightning Fast
100% Secure
Always Free
Cloud Processing

Need Uncompressed Images from iPhone Photos?

Your iPhone captures photos in HEIC format, but the software you need to use only accepts BMP files. Maybe it's an older Windows application, scientific imaging software, or a video editing workflow that requires frame-perfect bitmaps.

BMP (Bitmap) files store every pixel without compression, giving you the raw image data that specialized applications require. Converting your HEIC files to BMP preserves all details in a format that legacy and professional tools can read.

How to Convert HEIC to BMP

  1. Upload your HEIC file – Drag and drop or select your iPhone photo
  2. Confirm BMP output – BMP gives you uncompressed, lossless image data
  3. Download your bitmap – Ready for your legacy software or specialized workflow

The conversion happens in your browser. No software installation required, and your photos remain on your device.

What Makes BMP Different

BMP is one of the oldest image formats, created by Microsoft in the 1980s. Unlike HEIC or JPG, standard BMP files store image data without compression:

  • Uncompressed data – Every pixel stored exactly as-is, no quality loss
  • Universal legacy support – Works with Windows apps from any era
  • Simple structure – Easy for software to read and process
  • 24-bit or 32-bit color – Full color depth with optional alpha channel

The trade-off is file size. A 12-megapixel iPhone photo might be 2-3 MB as HEIC but 35+ MB as uncompressed BMP.

When BMP Is the Right Choice

Legacy Windows Software

Some older Windows applications—particularly from the Windows XP era or earlier—only accept BMP files. If your software rejects modern formats, BMP is the solution.

Scientific and Medical Imaging

Research applications often require uncompressed images where every pixel matters. BMP provides raw bitmap data without compression artifacts affecting measurements or analysis.

Video Production and Animation

Frame-by-frame video work sometimes uses BMP sequences as intermediate files. Each frame stays pristine during editing before final compression.

Large-Format Printing

Print shops working with older RIP software may need BMP files. The uncompressed data gives maximum quality for large prints.

BMP vs Other Formats

Choosing BMP depends on your specific needs:

  • Choose BMP when: You need uncompressed data, legacy software compatibility, or pixel-perfect accuracy for scientific work
  • Choose JPG when: You want universal compatibility with smaller files for sharing and web use
  • Choose PNG when: You need lossless compression with transparency support and smaller files than BMP
  • Choose TIFF when: You need professional-grade lossless images with metadata support

For most casual use, JPG or PNG are better choices. BMP serves specific professional and legacy needs.

Batch Convert Multiple HEIC Files

Processing an entire photo collection for a legacy system? Upload multiple HEIC files and convert them all to BMP at once. Useful when migrating iPhone photos to older software that only reads bitmap files.

Works on Any Device

Convert HEIC to BMP directly in your browser:

  • Windows, Mac, Linux, Chromebook
  • Chrome, Firefox, Safari, Edge
  • iPhone, iPad, Android

No software to download. The converter runs entirely in your browser for speed and privacy.

Pro Tip

If your legacy software accepts multiple formats, try PNG first. PNG is also lossless but uses compression, resulting in files 5-10x smaller than BMP while maintaining identical quality.

Common Mistake

Converting entire photo libraries to BMP for archival. BMP files are massive—a 1000-photo collection could exceed 35 GB. Use PNG or TIFF for lossless archiving with compression.

Best For

Legacy Windows software, scientific imaging requiring uncompressed pixels, video production image sequences, and older print shop workflows.

Not Recommended

Web use, sharing via email, mobile apps, or general photo storage. BMP's massive file sizes and lack of modern features make it impractical for everyday use.

Frequently Asked Questions

BMP is needed for legacy software that doesn't support modern formats, scientific applications requiring uncompressed pixel data, or video production workflows using image sequences. For general use, JPG or PNG are better choices.

Yes, significantly larger. A typical 12-megapixel iPhone photo is 2-3 MB as HEIC but 35+ MB as uncompressed BMP. BMP stores every pixel without compression, which preserves quality but increases file size dramatically.

No. BMP is uncompressed, so it captures all the detail from your original HEIC file. In fact, BMP can preserve more quality than converting to JPG since there's no lossy compression applied.

Older Windows applications (especially pre-2010), some scientific imaging software, legacy CAD programs, certain embroidery machine software, and some video editing workflows that use image sequences.

32-bit BMP files can include an alpha channel for transparency, though support varies by software. For reliable transparency, PNG is usually a better choice.

BMP was Windows' native image format for decades. Older software was written when BMP was standard, before JPG and PNG became widespread. The developers may not have updated format support.

Yes, in specific fields. Video production uses BMP sequences for frame-perfect editing. Scientific imaging values uncompressed data. Large-format printing with legacy RIP software sometimes requires BMP.

Yes. Upload multiple HEIC files and batch convert them all to BMP. This saves time when migrating photo collections to legacy systems.

Yes. The conversion preserves your original resolution. A 4032x3024 pixel iPhone photo becomes a 4032x3024 pixel BMP file.

Not typically. While BMP is lossless, PNG and TIFF offer lossless compression that dramatically reduces file sizes. BMP's large file sizes make it impractical for long-term photo storage.

HEIC Conversions & Related Converters

Quick access to the most commonly used file conversions.