Convert BMP to PNG
Compress a bulky uncompressed Bitmap into a clean PNG container. Runs entirely in your browser, so your data never leaves your device.
Drop a file here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Convert BMP to PNG
- 1. Drop in your BMP file. Add the bitmap image you want to shrink, typically a large, uncompressed file exported from an older tool, screenshot utility, or scanner.
- 2. Let the tool re-encode it. It reads the raw, uncompressed pixel grid stored in the BMP format and re-encodes it with lossless PNG compression to reduce file size.
- 3. Download the resulting PNG. Save the converted file, now considerably smaller than the original bitmap while keeping every pixel exactly the same.
When to use Convert BMP to PNG
Convert BMP to PNG compresses a bulky uncompressed Bitmap into a clean PNG container without losing any pixel data. It is a common cleanup step whenever a system or older tool exports images as BMP by default, leaving files far larger than they need to be.
- Shrinking a legacy screenshot tool's output. An older screenshot utility or remote desktop tool saves images as uncompressed BMP, and converting them to PNG keeps them small enough to share or archive.
- Preparing a scanned image for the web. A scanner defaults to BMP output for a document scan, and converting it to PNG makes the file practical to upload or email.
- Cleaning up a Windows-native export. A Windows application exports images only as BMP, and converting them to PNG makes the assets usable in web pages and modern design tools.
Examples
Shrink a bitmap
Input
scan.bmp (5 MB)
Output
scan.png: compressed, lossless
About the Convert BMP to PNG tool
Convert BMP to PNG is a free online tool that works entirely inside your web browser. Compress a bulky uncompressed Bitmap into a clean PNG container. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 108 PNG utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
There is nothing to configure. Provide the input and the result appears on its own. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Does Convert BMP to PNG cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
Which files does Convert BMP to PNG accept?
It accepts BMP bitmaps. There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.