What happens when you convert BMP to SVG
- The image is decoded and written as an SVG traced from the shapes and colours of the image.
- Tracing turns areas of similar colour into vector shapes. Logos, icons and flat artwork trace cleanly and scale to any size; photographs come out posterised, because every shade becomes a separate shape.
How to convert BMP to SVG online
- Press "Choose BMP files" and select one or more files, or drag them onto the box. You can add files of any size your device can hold in memory.
- Adjust the settings if you need to. The output is lossless, so there is no quality setting to worry about.
- Press "Convert to SVG". Images convert in a second or two each.
- Save each SVG with its download button. Close the tab and every trace of the files is gone from memory.
Why convert BMP to SVG?
BMP files usually come from Windows software, embedded displays and legacy tools. People convert them to SVG because SVG stays sharp at any size and is tiny for logos and icons, which makes it the standard for graphics on the web and in design tools.
In short, BMP is good at what it was made for, and SVG is the more practical choice when the file has to open, upload or print somewhere else. BMP opens in browsers and every Windows image tool, while SVG renders natively in every browser.
How to convert BMP to SVG on Windows, Mac, iPhone and Android
On Windows
Open this page in Chrome, Edge or Firefox, drag your BMP files in from File Explorer, and press Convert. Each SVG is saved to your Downloads folder.
On a Mac
Safari, Chrome and Firefox all work. Drag the BMP files from Finder onto the drop zone and the SVG files land in Downloads.
On iPhone and iPad
Open the page in Safari and tap Choose BMP files. You can pick from Photos or from the Files app. The converted SVG appears in Files, in the Downloads folder; to put it in your photo library, open it there, tap Share and choose Save Image.
On Android
Open the page in Chrome, tap Choose BMP files and pick them from Files or your gallery. The SVG is saved to the Download folder, where any file manager can find it.
Best settings for BMP to SVG
Two settings control the trace. Colours sets how many flat colours the SVG may use: 2 gives a black and white trace, ideal for signatures and line art; 8 to 16 suits most logos; 32 keeps more shading but produces far more shapes. Detail sets how closely the outlines follow the pixels: High keeps small features, Simple gives smoother, lighter files.
For the best result, start from the largest, cleanest version of the image you have, with a flat background. Blurry or heavily compressed JPGs trace with ragged edges, because the tracer follows the compression noise.
BMP vs SVG: the differences
| BMP | SVG | |
|---|---|---|
| Full name | Bitmap image | Scalable Vector Graphics |
| Type | image | image |
| Created by | Microsoft | the World Wide Web Consortium |
| First released | 1990 | 2001 |
| Compression | Lossless | Lossless |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Vector or raster | Raster | Vector |
| Colour | up to 32-bit colour | any colour, described as shapes rather than pixels |
| In a browser | opens in browsers and every Windows image tool | renders natively in every browser |
| Common uses | Windows software, embedded displays and legacy tools | logos, icons, charts and illustrations on the web |
| MIME type | image/bmp | image/svg+xml |
About BMP and SVG files
What is a BMP file?
BMP usually stores pixels with no compression at all, so a 12 megapixel photo is about 36 MB. That size is the price of being readable by almost any program ever written for Windows.
What is an SVG file?
SVG describes shapes as text instructions, so it stays sharp at any size and a simple logo can be under 5 KB. Turning it into pixels fixes it at one resolution, so choose the output size before converting.
BMP to SVG not working? Common problems
- Colours look slightly different. Browsers convert images to the standard sRGB colour space when they decode them, so wide-gamut and CMYK images can shift a little.
- A phone photo comes out upright even though it looked sideways elsewhere. That is correct: the rotation stored in the photo is applied during conversion, so the SVG is always the right way up.
- The file is bigger than expected. It depends on the artwork. A simple logo traced to SVG is often a few kilobytes; a detailed image produces thousands of shapes and a larger file than the BMP. Fewer colours give a smaller SVG.
Convert BMP to SVG from the command line
ImageMagick cannot trace pixels into vector shapes; it only wraps the image inside an SVG. The standard open-source tracer is potrace, which works on black and white bitmaps:
magick input.bmp -threshold 50% input.pbm
potrace input.pbm -s -o output.svgThat gives a single-colour trace. For colour, the converter on this page traces each colour separately and combines them, without installing anything.
BMP to SVG converter FAQ
Will I lose quality converting BMP to SVG?
The SVG is an interpretation, not a copy: tracing rebuilds the BMP as shapes. For logos and flat graphics it looks the same and stays sharp at any size; for photos, fine detail is simplified.
Why is the SVG a different size from the BMP?
It depends on the artwork. A simple logo traced to SVG is often a few kilobytes; a detailed image produces thousands of shapes and a larger file than the BMP. Fewer colours give a smaller SVG.
Are my BMP files uploaded anywhere?
No. The conversion runs inside this browser tab using your browser's own image decoder, so your files stay on your device. You can disconnect from the internet after the page has loaded and it still works.
Can I convert several BMP files to SVG at once?
Yes. Select or drop as many files as you like; they are converted one after another and each gets its own download button.
How do I open an SVG file?
SVG renders natively in every browser. SVG is common for logos, icons, charts and illustrations on the web.
Is this BMP to SVG converter free?
Yes. There is no sign-up, no watermark and no limit on how many files you convert. The site is paid for by advertising, and because conversions run on your device there is no server cost per file.
Can I convert BMP to SVG on my phone?
Yes. The converter works in Safari on iPhone and iPad and in Chrome on Android. Converted files are saved to the Downloads folder.