Convert HEIC to BMP
Free online HEIC to BMP converter. Drag and drop files, convert in batch, and download, without ever uploading to a server.
Why convert HEIC to BMP?
An iPhone photo uses a modern format. BMP is old. This pairing only matters when a legacy Windows program, embedded system, or industrial device can't read HEIC, or anything compressed, and needs raw pixel data instead. Expect the file size to balloon compared to the original HEIC, or even a JPG or PNG version of the same photo.
Tips
- Prefer PNG unless the target app specifically requires .bmp.
Frequently asked questions
How do I convert HEIC to BMP?
Drop your HEIC file into the converter above, adjust the quality if needed, and click "Convert to BMP". The conversion happens entirely in your browser. Your file is never uploaded to any server.
Is the HEIC to BMP conversion lossless?
HEIC from iPhones is usually already lossy (HEVC). This tool decodes those pixels then writes BMP without adding further compression.
Is there a file size limit?
The tool can handle files up to about 20 MB per image. Since processing happens in your browser, the practical limit is your device's available memory. Most modern devices can comfortably batch-convert dozens of images at once.
Are my HEIC files uploaded to your servers?
No. All HEIC to BMP conversion happens entirely client-side. HEIC is decoded with a wasm library loaded only when needed. Your files never leave your browser.
Why would anyone want an uncompressed BMP from a modern iPhone photo?
This pairing exists for compatibility with software that predates modern image formats: certain scientific instruments, legacy Windows utilities, and some embedded or industrial systems that only read a raw, uncompressed bitmap. A BMP made this way won't look any better than a PNG of the same photo. It will just be considerably larger, since BMP stores every pixel's color value directly with no compression. Use this only when the receiving software specifically requires .bmp.