BMP to Base64
Upload a BMP file and get a Base64 string or data URI ready to embed in HTML or CSS.
Last updated: May 29, 2026
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Buy me a coffeeWhat is BMP to Base64?
BMP to Base64 reads a bitmap image file entirely in your browser and encodes it as a Base64 string. The data URI output (data:image/bmp;base64,...) can be used directly in an HTML img src or CSS background-image without hosting the file separately.
How to Use BMP to Base64
Drop a BMP file onto the upload area or click to browse.
Copy the Base64 string or data URI.
Paste into your HTML or CSS.
Common Use Cases
- Embedding BMP images in single-file HTML documents.
- Testing BMP rendering in a browser without a web server.
- Prototyping layouts that include bitmap image assets.
File size
BMP files are uncompressed and often large. Base64 encoding adds ~33% overhead. Consider converting to PNG or WebP before embedding for smaller output.
Frequently Asked Questions
Is my file uploaded?
No. The file is read and encoded entirely in your browser using the FileReader API.
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