Convert HEIC to BMP Online Free

Instantly convert your HEIC files to BMP format right in your browser. No uploads, no registration, 100% free and private.

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HEIC to BMP conversions

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How to Convert HEIC to BMP

Upload Files

Select your HEIC files by dragging and dropping or clicking to browse.

Choose Settings

BMP is pre-selected. Adjust quality and metadata options if needed.

Download

Click Convert and download your BMP files instantly.

Why Convert HEIC to BMP?

HEIC to BMP conversion enables compatibility with old Windows applications and legacy systems that only recognize uncompressed bitmap formats. Although BMP files are much larger than HEIC, this conversion is sometimes necessary for archival systems or specialized industrial software that predates modern image compression.

HEIC vs BMP: File Size Comparison

Based on a typical 12-megapixel photograph (4000 × 3000 pixels) at default quality settings.

HEIC Source

2.5 MB

Size Change

+1,272% (uncompressed)

BMP Output

34.3 MB

BMP stores raw pixel data without compression. Only useful for legacy system compatibility.

HEIC vs BMP Comparison

Feature	HEIC	BMP
Compression	Lossy	Lossless
Transparency	Yes	No
Animation	Yes	No
Browser Support	Safari only	Universal
Typical File Size	Smaller (50% less than JPG)	Very large (uncompressed)
Best For	iPhone/iPad photos, storage efficiency	Legacy systems, raw image data

Related Conversions

HEIC JPG HEIC PNG HEIC WEBP HEIC AVIF HEIC GIF HEIC TIFF HEIC PDF JXL BMP

HEIC to BMP on Every Platform

iPhone / iPad

Your iPhone saves photos as HEIC by default since iOS 11. To convert to BMP, simply upload your photos to PhotoFormatLab — no app installation needed. Alternatively, you can change your camera settings to capture in JPG: go to Settings → Camera → Formats → Most Compatible.

Windows PC

Windows 10/11 can display HEIC files if you install the "HEIF Image Extensions" from the Microsoft Store (free). However, most Windows applications still cannot edit HEIC files — converting to BMP gives you full compatibility with Photoshop, Paint, GIMP, and every other Windows application.

Android

Android devices cannot natively open HEIC files sent from iPhones. Converting to BMP before sharing ensures Android users can view your photos in any gallery app without installing additional software.

Batch Conversion

PhotoFormatLab processes all files in your browser using Web Workers for parallel conversion. You can convert hundreds of HEIC files to BMP simultaneously — the speed depends on your device's CPU, not your internet connection.

Common Issues and Solutions

My HEIC file shows as corrupted or will not load

Some HEIC files from older iOS versions use a slightly different encoding. Try updating your iPhone to the latest iOS, or re-export the photo from iCloud.com in its original format before converting.

Transparent areas appear as white or black after conversion to BMP

BMP does not support transparency. Transparent pixels are composited onto a white background by default. If you need to preserve transparency, consider converting to PNG or WebP instead.

My animated HEIC file only shows the first frame after conversion

BMP does not support animation. Only the first frame is extracted during conversion. To preserve animation, convert to WebP or GIF instead.

Conversion is very slow on my device

Large files (over 20 MB) require significant CPU processing since conversion happens entirely in your browser. Close other browser tabs to free up memory, or try converting fewer files at a time. On mobile devices, the process is naturally slower than on desktop computers.

The output file is much larger than expected

This typically happens when converting from a highly compressed format (like HEIC) to a less compressed one (like BMP). The output reflects the actual image data, not the compression efficiency of the source. Lossless formats like BMP prioritize quality over file size.

Frequently Asked Questions

For a typical 12-megapixel photograph (4000×3000 pixels), a HEIC file of approximately 2.5 MB converts to a BMP file of approximately 34.3 MB — a change of +1,272% (uncompressed). BMP stores raw pixel data without compression. Only useful for legacy system compatibility.

BMP uses lossless compression, so there is no quality setting to adjust — every pixel from your HEIC file is preserved exactly in the output. The file size is determined by the image content rather than a quality parameter.

No. PhotoFormatLab converts files entirely in your browser using JavaScript, Canvas API, and WebAssembly. Your images never leave your device — no upload, no server processing, no cloud storage. This makes the conversion completely private and works even without an internet connection after the page loads.

There is no artificial limit. You can convert hundreds of files in a single batch. The practical limit depends on your device's available memory and CPU speed. For very large batches (500+ files), we recommend processing in groups of 50-100 for optimal performance.

Most individual files convert in under 2 seconds on a modern device. A batch of 50 files typically completes in 30-60 seconds. Since processing happens on your device, conversion speed depends on your hardware — desktop computers are generally faster than phones. There is no upload or download wait time.

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