Convert BMP to GIF Online
Convert BMP to GIF in your browser. Free, offline, client-side - with honest PNG fallback when browsers lack native GIF encoding.
Convert BMP images in your browser. If your browser cannot natively encode GIF (most modern browsers can't), the download is honestly labelled as PNG instead of pretending to be a GIF.
Click or drag a BMP file here
Only .bmp files accepted — output is either .gif (Safari) or .png (Chromium / Firefox)
How to Use Convert BMP to GIF Online
- Pick your BMP file. Click the upload area or drag a .bmp file into it. The browser's native BMP decoder handles most BMP variants including 24-bit and 32-bit versions.
- Wait for auto-conversion. As soon as the file loads, the tool attempts GIF encoding and displays the result. You can force a re-conversion later with the Convert button or Ctrl+Enter.
- Check the stats line. Below the preview you will see the image dimensions, megapixel count, and the actual output format - "GIF" if your browser encoded it natively, or "PNG (browser GIF encoding unsupported)" if it fell back.
- Understand the honest labelling. Most Chromium and Firefox browsers do not implement native GIF encoding via canvas. We detect this and label the result correctly so you do not end up with a `.gif` file that is secretly a PNG.
- Copy or download. "Copy image" puts the real blob on your clipboard (GIF or PNG). "Download" saves a file with the accurate extension - either `converted.gif` or `converted.png`.
- Start over with Clear. Resets the upload area, preview, and stats so you can convert another BMP file without reloading the page.
Frequently Asked Questions
Is my image data secure?
Yes. All image conversions happen entirely in your browser using client-side JavaScript. Your BMP files never leave your device or get uploaded to any server.
Why does the download sometimes say PNG instead of GIF?
Most modern browsers (Chrome, Edge, Firefox, Opera) do not support native GIF encoding via the canvas API – they silently return PNG data when you ask for `image/gif`. Rather than give you a `.gif` file that is really PNG in disguise, we detect the browser’s behaviour and label the output truthfully. Your image is still a high-quality raster file usable anywhere PNG works.
Is this converter free to use?
Yes, completely free with no file limits, watermarks, or hidden fees. Convert as many BMP files as you need.
Does this work offline?
Yes. Once the page loads, you can convert BMP files without an internet connection. All processing happens locally in your browser.
What file formats are supported as input?
This tool accepts BMP (bitmap) files as input – both 24-bit and 32-bit variants, detected by MIME type and `.bmp` extension. Other formats will trigger an error message.
What are the advantages of GIF or PNG over BMP?
BMP files are uncompressed and very large. Both GIF and PNG compress much better for web use, and PNG in particular keeps all 24-bit or 32-bit colour with lossless compression – usually the best choice for a converted BMP.
Can I convert multiple BMP files at once?
This tool processes one file at a time. Convert one, download it, then use the Clear button and upload the next BMP.
Is there a file size limit?
The limit depends on your browser’s memory capacity. Most modern browsers handle BMP files up to several megabytes without issues; very large BMPs (>50 MB) may fail with an out-of-memory error.
Does the conversion preserve transparency?
In PNG fallback mode, 32-bit BMP alpha channels are preserved losslessly. Real GIF output supports only 1-bit (on/off) transparency and quantizes colours to 256 maximum, so if your browser does encode GIF natively you may lose smooth alpha and colour fidelity.
What keyboard shortcuts does it support?
Ctrl+Enter (Cmd+Enter on Mac) re-runs the conversion on the currently loaded image – handy if you want to re-encode after the tool’s initial auto-conversion.