How to Convert BMP to PNG on Android

Android handles BMP files fine — you can open them, view them, and share them. But converting BMP to PNG on Android used to require a dedicated app. It no longer does. A browser-based converter runs directly in Chrome or Firefox on your phone and processes the file locally, with nothing uploaded. Here is how to do it, plus two additional methods using apps already on your device.

Method 1: Browser Converter — No App Download Required

This works on every Android phone and tablet — Samsung, Pixel, OnePlus, or any other brand:

1. Open Chrome (or Firefox) on your Android device
2. Go to the free BMP to PNG converter
3. Tap the upload area and select your BMP file from Files, Downloads, or wherever it is stored
4. The PNG downloads automatically to your Downloads folder

The conversion runs in the browser in your browser — no data leaves your phone. The PNG file is identical in quality to the BMP, just 5-20x smaller.

To find the PNG after downloading: open the Files app (or Samsung My Files), go to Downloads, and the file will be there.

Method 2: Google Photos (If the BMP Is in Your Gallery)

If the BMP file is in your Android photo gallery or Google Photos:

1. Open Google Photos and find the BMP image
2. Tap the three-dot menu (top right) > Save to device or Download
3. Google Photos may automatically convert it to a more efficient format when syncing, but this is not guaranteed for BMP files

Google Photos is not a reliable BMP-to-PNG converter — it is primarily a viewer and backup service. Use the browser method above if you specifically need a PNG file with a guaranteed lossless result.

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Method 3: Samsung My Files (Samsung Galaxy Devices)

Samsung Galaxy phones include a built-in Files app called My Files. It can open BMP files and view them, but does not have a built-in format conversion feature.

What you can do from My Files:

• Locate the BMP file and confirm it opens (double-tap to open in Gallery or an image viewer)
• Share the file directly to the browser converter: long-press the file > Share > choose Chrome > paste the converter URL

Samsung Gallery (the default photo viewer on Galaxy devices) can display BMP files but does not export to PNG. For conversion, the browser method is still the fastest option on Samsung.

Why Do I Have a BMP File on My Android Phone?

BMP files appear on Android from a few common sources:

• Email attachments or file transfers from Windows PCs: Someone sent you a BMP from a Windows machine where Paint or an older program saved it that way
• Downloads from older websites: Some legacy sites still serve BMP images
• Bluetooth transfers from Windows: Files transferred via Bluetooth sometimes retain their original BMP format
• Specific apps: Some industrial, medical, or engineering apps produce BMP output

Android does not natively produce BMP files — your phone camera saves as JPG or HEIC, and screenshots save as PNG. If you have a BMP, it came from an external source.

Converting Multiple BMP Files at Once on Android

The browser converter handles multiple files in one go:

1. Open the BMP to PNG converter in Chrome on your Android device
2. Tap the upload area — in the file picker, long-press the first BMP file to enter selection mode, then tap each additional BMP you want to convert
3. Tap Open — all selected files are added to the converter
4. A ZIP file containing all the PNGs downloads to your Downloads folder

The ZIP can be opened directly from the Downloads folder using My Files or any file manager app.

Frequently Asked Questions

Can I open a BMP file on Android without converting it?

Yes. Android's built-in Gallery, Google Photos, and Samsung Gallery all open BMP files for viewing. You only need to convert if you want a smaller file, need PNG specifically, or the receiving app does not accept BMP.

Does the browser converter work on Android Chrome without any setup?

Yes. Open the converter URL in Chrome on Android and it loads immediately. The modern browser technology image processing engine downloads once (about 3MB) and is then cached for future visits. No install, no account, no permissions required beyond basic browser access to your files when you select them.

Will converting BMP to PNG reduce image quality on Android?

No. PNG is a lossless format. The conversion preserves every pixel exactly. The PNG will look identical to the BMP — the only change is file size, which will be 5-20x smaller.