Image guides
How to Convert HEIC to BMP in Your Browser
Converting a HEIC or HEIF photo to BMP produces an uncompressed 24-bit bitmap that older Windows software and some print or legacy pipelines expect. This guide covers the steps and what to know about transparency and file size.
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Step-by-step conversion
- Open /tools/heic-to-bmp.
- Choose a HEIC or HEIF file — the content is validated before conversion, not just the filename or extension.
- Select Convert & download.
- Save the .bmp file from your browser downloads.
Transparency and file size
BMP output here is 24-bit RGB with no alpha channel, so transparent pixels are flattened onto a white background, the same convention used for JPG output. Because BMP is uncompressed, the resulting file is usually larger than the source.
Source-specific behavior
HEIC/HEIF containers can hold more than one image (a burst or a Live Photo). A single-image file downloads as one output file; a multi-image file downloads as a ZIP with every decoded image converted, so nothing is silently dropped.
Privacy
Conversion runs locally in your browser. The file is not uploaded to Looty Tools servers for this workflow.
Convert HEIC to BMP FAQ
- Why would I need BMP instead of HEIC?
- Some older Windows software, print workflows, or legacy tooling specifically expects an uncompressed BMP file.
- What happens with a multi-image HEIC file?
- Every decoded image is kept. A single-image HEIC downloads as one file; a multi-image HEIC (a burst or Live Photo) downloads as a ZIP containing every decoded image, never just the first one.
- Does BMP output keep transparency?
- BMP output here is 24-bit RGB with no alpha channel, so transparent pixels are flattened onto a white background, the same convention used for JPG output. Because BMP is uncompressed, the resulting file is usually larger than the source.
- Are my files uploaded?
- No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.
- What is validated before conversion?
- The file must actually be a HEIC/HEIF container — the tool checks the ISO-BMFF ftyp brand, not just the filename or extension, before decoding.
Related guides
- HEIC vs JPEG vs PNGCompare HEIC, JPEG, and PNG for photos, transparency, file size, and compatibility so you can choose the right Image Converter output.
- Convert Images Without UploadingLearn what browser-local image conversion means on Looty Tools, what stays on your device, and how Image Converter avoids a conversion upload.