Uncompressed 24-Bit Bitmap Standard

Convert HEIC to BMP Online

Instantly batch convert Apple iPhone HEIC/HEIF photos into uncompressed Windows Bitmap (BMP) format. 100% private in-browser WebAssembly processing.

Drop your HEIC files here to convert to BMP

or browse from your computer or phone

Strictly optimized for Apple .heic and .heif images. Processed entirely on your CPU in memory.

Target Format:

Image Quality: 95%

Multiple Images Detected â€¢ Choose batch output mode

How would you like to process your photos?

Page Orientation:

Condition: Single-document merging combines all photos into 1 multi-page PDF.

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Simple 3-Step Process

How to Convert HEIC to BMP

Fast, client-side, and completely free bitmap rendering in your browser.

Select HEIC Photos

Drag and drop `.heic` or `.heif` images directly into the browser drop zone from iPhone or PC.

BMP Format Preset

The tool is preset to uncompressed BMP. Adjust quality or preview individual frames before processing.

Instant Download

Click "Convert All" and download pristine uncompressed BMP files individually or as a single ZIP archive.

Why Convert HEIC to Windows Bitmap (BMP)?

Understanding where uncompressed BMP outperforms modern compressed containers.

Zero Compression Artifacts

Unlike JPEG which applies lossy Discrete Cosine Transform compression, standard 24-bit BMP stores every single pixel in raw uncompressed raster data. When you convert HEIC to BMP, not a single pixel undergoes additional compression degradation.

Legacy Windows & Industrial Compatibility

Windows Bitmap has been a bedrock standard in Windows since Windows 3.0 (1990). Legacy accounting software, industrial vision cameras, embedded microcontrollers, and CAD software that cannot parse HEVC/HEIC will open BMP files effortlessly.

Feature	BMP (.bmp)	HEIC (.heic)	JPG (.jpg)
Compression	Uncompressed (Raw)	HEVC Lossy/Lossless	DCT Lossy
File Size	Very Large	Smallest (~50% vs JPG)	Moderate
Legacy Windows Support	100% Native (Win 95 to 11)	Requires Extra Codecs	Universal
Editing Fidelity	Pixel-by-Pixel Exact	High (16-bit support)	8-bit Standard

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Frequently Asked Questions

Common questions regarding HEIC to BMP conversion.

What is a BMP file and why convert HEIC to BMP?

BMP (Windows Bitmap) is an uncompressed raster graphics format that stores individual pixel colors without lossy compression. Converting HEIC to BMP is ideal for legacy Windows applications, industrial machine vision systems, and specialized graphics software that cannot parse HEVC codecs.

Are my photos uploaded to a server during BMP conversion?

No. All conversion is executed 100% locally on your computer using WebAssembly and client-side graphics rendering. Your images never touch any server or cloud storage.