How to convert HEIC to BMP
- Drop your HEIC files on the box above, or click it to choose them (up to 30 at once).
- Press Convert. Each file is processed on your device and shows its old and new size.
- Download the files one by one or take them all as a ZIP.
What changes when you convert HEIC to BMP
- Every decoded pixel is written exactly — BMP is lossless here. Converting cannot restore detail HEIC compression already discarded; it only stops further loss.
- BMP cannot store transparency, so transparent areas are filled with white — what image editors do when saving to BMP.
- Camera details and GPS location (EXIF) are not copied into the new file. Photo orientation is applied to the pixels first, so the result is the right way up.
- Expect a much larger file: BMP here is uncompressed, about width × height × 3 bytes — roughly 36 MB for a 12-megapixel photo.
About HEIC and BMP files
HEIC is the format iPhones save photos in by default. It is roughly half the size of an equivalent JPEG, but Windows, Android and most websites cannot open it without extra software.
BMP is the old Windows bitmap format. It stores every pixel uncompressed, so files are very large, but almost any program — including very old ones — can read it. It is a good choice for old software, embedded devices and tools that only accept plain bitmaps.
Limits
Up to 30 files of 25 MB each per batch and images up to 50 megapixels — beyond that browsers run out of memory, so the tool says so instead of producing a broken file. HEIC decoding uses libheif in the background and can take a few seconds per photo on a phone. Files that are not images, or are damaged, are rejected with the reason.