WebToolsPlanet
Converter Tools

BMP to JPG Converter

Upload a BMP bitmap and download it as a compressed JPG — converted entirely in your browser.

BMP → JPGBrowser basedNo uploadFree

Last updated: May 30, 2026

Client-Side Processing
Input Data Stays on Device
Instant Local Execution
Something wrong with this tool? Report it

Find this tool useful? Support the project to keep it free!

Buy me a coffee

What is BMP to JPG Converter?

BMP to JPG converts large, uncompressed Windows bitmap (.bmp) images into JPG (JPEG) files. JPEG uses lossy compression that dramatically reduces file size, which makes it ideal for photographs and detailed images that would otherwise be huge as bitmaps.

This converter decodes your BMP with the browser's image engine and re-encodes it as a quality-92 JPEG. Because JPEG has no alpha channel, any transparency is flattened onto a white background. Nothing is uploaded to a server.

How to Use BMP to JPG Converter

1

Drop a BMP file onto the upload area or click to browse

2

The image is decoded and re-encoded as JPG instantly

3

Compare the JPG preview with your original

4

Click Download to save the JPG

Common Use Cases

  • Compressing large BMP photos into small, shareable JPG files.
  • Preparing bitmap images for email or the web where JPG is expected.
  • Reducing storage size of scanned or exported bitmaps.
  • Converting legacy BMP assets to a universally supported photo format.

Example Input and Output

A 24-bit BMP photo converts to a high-quality JPG a fraction of the original size.

Input
photo.bmp (5.9 MB, 24-bit bitmap)
Output
photo.jpg (480 KB, quality-92 JPEG)

How This Tool Works

The browser decodes the BMP onto a canvas, flattens any transparency onto white, and exports the canvas as a quality-92 JPEG for download.

Technical Stack

TypeScriptCanvas APIcanvas.toBlobJPEG encoderClient-side processing

Quality

Output uses JPEG quality 0.92 — a strong balance of small size and visual fidelity for most images.

Privacy

Your image never leaves the browser; conversion is fully client-side.

Frequently Asked Questions

Is my BMP uploaded anywhere?

No. The file is decoded and re-encoded entirely in your browser using the canvas API.

Will I lose quality?

JPEG is lossy, so there is some compression. This tool uses a high quality setting (92) so the loss is usually imperceptible.

What happens to transparency?

JPG does not support transparency, so transparent areas are filled with white before encoding.

How much smaller will the file be?

BMP is uncompressed, so JPG output is often 80–95% smaller depending on image content.

Related Tools