HEIC to BMP Converter — Free, Online, No Upload

HEIC is Apple's efficient camera format — great for storage, but largely unrecognized outside the Apple ecosystem. Windows apps, older software, and embedded systems often have no idea what to do with a .heic file, and installing Apple's codec pack is not always an option.

BMP is the opposite of efficient, but it's the most universally readable uncompressed format that Windows and older applications understand natively. Windows Paint opens BMP without any plugins. Legacy industrial software, older document scanners, and some embroidery or CNC design tools specifically require BMP input. If you're working with a system that rejects HEIC and also rejects JPEG, BMP is usually the format of last resort that will work.

Be prepared for large files. A typical iPhone HEIC photo that's 3–5 MB will expand to 15–30 MB or more as a BMP, because BMP stores raw, uncompressed pixel data with no compression at all. Quality is lossless — every pixel is preserved exactly — but the size trade-off is significant. Only convert to BMP when a specific tool or workflow requires it; for general compatibility, JPEG or PNG are much more practical choices.

Typical sizes (12MP photo): HEIC 1.5–3 MB → BMP 35–40 MB.

BMP will not bring back detail that HEIC compression already removed, but it adds no further loss — handy when you need to edit the image.