To convert BMP to PNG, choose your BMP images above, adjust the options if needed and press "Convert to PNG". The PNG downloads instantly: free, with no sign-up, and the file never leaves your device.
About the BMP to PNG Converter
This BMP to PNG converter turns images from BMP into PNG without installing software or uploading anything. It solves a common problem: BMP files are huge and cannot be used on most websites. Converting to PNG gives you lossless quality with transparency, ideal for screenshots, logos, icons, charts and any image that needs a transparent background.
The converter decodes your BMP with your browser's own image engine and writes the PNG with the built-in canvas encoder, so quality settings are applied precisely. Because everything happens on your own device, your images are never uploaded, stored or seen by anyone else, which makes it safe for ID photos, Aadhaar or PAN scans and personal pictures.
What to expect: PNG stores the pixels without further quality loss; camera metadata such as GPS location is removed because the image is re-encoded.
How to use the BMP to PNG Converter
- Click "Choose files" or drag your BMP images onto the box. You can add several at once.
- Optionally set a maximum width to resize while converting; leave it empty to keep the original size.
- Press "Convert to PNG". The conversion runs on your device and shows its progress.
- Download each PNG file, or use "Download all (ZIP)" when you converted several.
- Open the result in every browser or Windows Photos to check it; your original BMP is never changed.
Tips & benchmarks
- PNG is lossless, so the result will look identical to the source; photos may become noticeably larger than the original.
- Password-protected (encrypted) archives cannot be converted; extract them with the password first.
- Keep the file name simple (letters, numbers and hyphens) if you plan to upload the PNG to a website or government portal.
Frequently asked questions
How do I convert BMP to PNG?
Click "Choose files", select your BMP images, adjust the options if you want, and press "Convert to PNG". The PNG downloads immediately; with several files you can download everything as one ZIP.
Is this BMP to PNG converter free and safe?
Yes. It is completely free, with no sign-up, no daily limit and no watermark. The conversion runs inside your browser, so your images never leave your phone or computer and nothing is stored on News Appite's servers.
Will converting BMP to PNG reduce the quality?
No. PNG stores the image without lossy compression, so the result looks exactly like your BMP.
Can I convert several BMP files at once?
Yes. Add as many BMP files as you like; they are converted one after another and you can download them individually or together as a ZIP.
Does it work on iPhone, Android and Mac?
Yes. The converter works in any modern browser, including Chrome, Safari, Edge and Firefox, on Android, iPhone, iPad, Windows, macOS and Linux. No app is needed.
What is the difference between BMP and PNG?
BMP (Windows Bitmap) is a uncompressed raster image best suited to legacy Windows software, embedded displays, machine vision and printing tools that need raw pixels. PNG (Portable Network Graphics) is a lossless raster image best suited to screenshots, logos, icons, charts and any image that needs a transparent background.
Is there a file size limit?
There is no upload limit, because nothing is uploaded. The practical limit is your device's memory: files of a few hundred megabytes work on most computers, and phones handle smaller files comfortably.
How do I convert BMP to PNG on Windows 10 or 11?
Open this page in Chrome or Edge, drag the BMP files onto the upload box and click "Convert to PNG". Nothing has to be installed, and the files are saved to your Downloads folder.
How do I convert BMP to PNG on a Mac?
Open this page in Safari or Chrome, drop the BMP files onto the upload box and click "Convert to PNG". It works the same on Intel and Apple silicon Macs.
Does BMP to PNG keep a transparent background?
Yes. PNG supports transparency, so transparent areas of your BMP stay transparent.
How do I convert BMP to PNG in Python?
Use Pillow: Image.open('input.bmp').save('output.png'). If you just need the file, this converter does it in the browser without writing any code.
BMP ko PNG kaise kare?
Is page par "Choose files" dabaiye, apni BMP file chuniye aur "Convert to PNG" par click kijiye. PNG file turant download ho jaati hai. Ye bilkul free hai, sign-up nahi chahiye, aur aapki file kisi server par upload nahi hoti.
BMP vs PNG: format comparison
| BMP | PNG | |
|---|---|---|
| Full name | Windows Bitmap | Portable Network Graphics |
| Type | Uncompressed raster image | Lossless raster image |
| Created by | Microsoft, late 1980s | PNG Development Group / W3C, 1996 |
| Compression | Usually uncompressed | Lossless (Deflate) |
| Transparency | No | Yes |
| File extension | .bmp | .png |
| MIME type | image/bmp | image/png |
| Best for | Legacy Windows software, embedded displays, machine vision and printing tools that need raw pixels | Screenshots, logos, icons, charts and any image that needs a transparent background |
| Opens in | Windows Paint, Windows Photos, older Office versions and most image editors | every browser, Windows Photos, macOS Preview, Photoshop, Canva and GIMP |
What is a BMP file?
BMP is the classic Windows bitmap format. It stores raw pixel data with little or no compression, so files are large, but almost every old program, embedded device and industrial machine can read it.
What is a PNG file?
PNG was designed in 1996 as a patent-free replacement for GIF. It stores every pixel exactly, supports millions of colours and full alpha transparency, which is why screenshots, logos and interface graphics are usually PNG files.
Need it the other way round? Use the PNG to BMP Converter.
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