Are my images uploaded to a server?

No. The entire conversion runs inside your browser using the HTML5 Canvas API and JavaScript. Your GIF file never leaves your device.

What happens with animated GIFs?

Only the first frame of an animated GIF is extracted and converted to BMP. The Canvas API captures the image at the moment it is drawn, which corresponds to the initial frame.

Why is the BMP file larger than the original GIF?

BMP is an uncompressed format. Every pixel is stored as raw 24-bit RGB data with no compression, so even simple images produce large files. GIF uses lossless LZW compression, which is far more compact for flat-color graphics.

What BMP variant does this tool produce?

The output is a standard 24-bit-per-pixel Windows BMP (BITMAPINFOHEADER, BI_RGB, no compression). It is compatible with virtually all software that reads BMP files.

What happens to GIF transparency?

BMP does not support transparency. Any transparent pixels in the original GIF are composited onto a white background before export, which is the standard approach for formats without an alpha channel.

Is there a file size limit?

The practical limit is your browser's available memory. Very large GIFs or those with high-resolution frames may be slow to process on low-end devices.

GIF to BMP Converter

Name: GIF to BMP Converter
Availability: InStock
Author: Nham Vu

Upload a GIF and instantly download it as a BMP bitmap — animated GIFs export the first frame, fully in-browser with no file upload.

Upload GIF

Click or drag a GIF here

GIF files only — animated GIFs export first frame

Preview (BMP output — first frame)

Upload a GIF to see the BMP preview

Converted bitmap will appear here before download

Downloaded!

Summary

Upload a GIF and instantly download it as a BMP bitmap — animated GIFs export the first frame, fully in-browser with no file upload.

How it works

Select or drag a GIF image onto the upload area.
The browser decodes the GIF (capturing the first frame of animated GIFs) using its built-in image decoder.
The Canvas API reads all pixel data from the decoded frame using getImageData().
JavaScript assembles a valid 24-bit BMP file binary in memory, writing the file header, DIB header, and pixel rows in the correct bottom-up order.
A live preview of the converted image is displayed before download.
Click "Download BMP" to save the bitmap file to your device.

Use cases

Convert a GIF logo or screenshot to BMP for use with legacy Windows software.
Extract a static first frame from an animated GIF as an uncompressed bitmap.
Prepare GIF images for workflows or tools that require BMP input.
Convert GIF graphics to BMP for use in embedded systems or microcontroller projects.
Process images privately without uploading to any third-party service.
Convert GIF screenshots to BMP for compatibility with older paint programs.
Archive GIF graphics in BMP format for lossless pixel-perfect storage.
Supply BMP assets for game development or retro software projects.

Frequently Asked Questions

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Last updated: 2026-05-29 · Reviewed by Nham Vu