Image to BMP Converter
Conversion Complete ( files converted)
Convert HEIC, PNG, JPG, WebP, AVIF, TIFF and ICO to BMP free online. Lossless uncompressed output for raw pixel work. 100% private — batch ZIP download.
How to Use
Upload Images
Click the upload area or drag and drop images from your computer. Supported formats: PNG, JPEG, WebP, AVIF, BMP, TIFF, ICO.
Adjust Quality
Use the quality slider to control the output image quality. Higher quality means larger file size.
Convert
Click the convert button to start processing. All conversion happens in your browser — no files are uploaded to any server.
Download
Download individual images or click 'Download All' to save all converted files as a ZIP archive.
Tips & Tricks
Uncompressed Format
BMP stores image data without any compression, resulting in large files but perfectly preserving every pixel. It is one of the simplest image formats to read and write.
When to Use BMP
Choose BMP when working with legacy software, raw pixel data, or systems that require uncompressed image data. It is widely supported across all platforms.
BMP Best Practices
Use BMP for compatibility with older software or when you need pixel-perfect data for further processing. For storage or web use, convert to a compressed format like PNG.
Common Use Cases
Legacy Software
Compatible with older applications that only support BMP
Raw Image Processing
Work with uncompressed pixel data for image analysis
Embedded Systems
Use in resource-constrained systems with simple rendering
Medical Imaging
Exchange lossless image data in medical applications
Data Conversion
Intermediate format for batch image processing pipelines
Education
Learn about image file structure with the simplest format
Frequently Asked Questions
Are my images uploaded to a server?
No. All processing runs entirely in your browser via the Canvas API. Your images never leave your device.
Why are BMP files so large?
BMP is an uncompressed format that stores raw pixel data directly. Each pixel is stored with full color information, resulting in large file sizes. For example, a 1920×1080 BMP is about 6 MB, while the same image as JPEG might be under 1 MB.
Is there a file size limit?
Yes, each file must be under 50 MB. There is no fixed limit on how many files you can add, but very large batches take a while because everything runs in your browser tab.
When would I use BMP?
BMP is useful when you need raw, uncompressed pixel data for compatibility with legacy software, medical imaging (DICOM workflows), certain industrial systems, or as an intermediate format before applying custom compression algorithms.
Can I convert multiple images at once?
Yes. Add as many images as you need — there is no fixed batch limit — then download each file individually or grab them all as a ZIP archive.
Does BMP support transparency?
Classic BMP does not support an alpha channel — transparent pixels render as black. If you need transparency, PNG or WebP is the right format instead.