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BMP to Base64 Converter Online

Convert BMP images to Base64 online for free. Generate a BMP data URI or Base64 string directly in your browser with drag and drop, preview, copy, and TXT download.

100% FreeNo Signup RequiredPrivacy Friendly
Privacy note: this converter is designed for browser-side processing. Your selected image is read by your browser to create the Base64 result. Avoid using confidential files unless you understand your browser and website privacy settings.

📁 Drop your BMP image here

or click to choose a BMP file from your device

Supported input: BMP / .bmp
BMP image preview

Free BMP to Base64 Converter Online

This free BMP to Base64 converter turns a BMP image into a Base64-encoded data URI in your browser. It is useful when you need to embed a BMP image in HTML, CSS, JavaScript, JSON, application data, or another workflow that accepts Base64 image data.

The tool supports users in the US, UK, and other regions with a straightforward workflow: choose a BMP file, drag and drop it into the converter, preview the image, then copy the Base64 result or download it as a TXT file.

What is BMP to Base64?

BMP to Base64 conversion changes the binary contents of a BMP image into text characters using Base64 encoding. The result can be represented as a BMP data URI beginning with data:image/bmp;base64,. Base64 is an encoding format; it does not compress the original image.

Why use a BMP Base64 converter?

  • Create a BMP Base64 string for development and testing.
  • Generate a BMP data URI for browser projects.
  • Copy the encoded result directly to the clipboard.
  • Download the Base64 output as a TXT file.
  • Use drag and drop for a faster upload workflow.

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How to Convert BMP to Base64

  1. Select a BMP image or drag and drop it into the upload area.
  2. Wait for the browser to encode the image into Base64.
  3. Review the image preview and Base64 data URI.
  4. Click Copy Base64 or Download TXT.

BMP to Base64 Features

  • Free online BMP Base64 conversion.
  • Drag-and-drop BMP file selection.
  • Browser-based encoding with no required account.
  • Image preview before copying the result.
  • Copy and TXT download options.
  • Responsive interface for desktop and mobile browsers.

Frequently Asked Questions

Is BMP to Base64 free?
Yes. This BMP Base64 converter is available as a free online browser tool.
Can I drag and drop a BMP file?
Yes. Drag a BMP file over the upload area and release it, or click the area to select a file.
What does the output start with?
For a BMP image, the data URI normally starts with data:image/bmp;base64,.
Can I download the Base64 string?
Yes. Use Download TXT to save the complete Base64 result as a plain text file.
Does Base64 reduce image file size?
No. Base64 is an encoding method, not an image compression method. The encoded representation is generally larger than the original binary data.