PNG to BMP converter: free, fast and secure
Convert PNG to BMP online for free with ConvertKaro. It is fast, private and works on any phone or computer. Some older Windows software, embroidery machines and industrial printers only accept uncompressed BMP files.
Unlike most converters, ConvertKaro never uploads your images. The conversion happens on your own device, so it is quicker, there are no file limits, and your photos stay private.
How to convert PNG to BMP in 3 steps
- Add your PNG files. Tap “Select files” or drag and drop one or more .png images into the box above. You can also paste a screenshot with Ctrl+V.
- Adjust the options. The default settings work for most images, so you can skip this step.
- Download your BMP. Conversion starts instantly. Download each BMP file, or all of them at once as a ZIP.
Why use ConvertKaro PNG to BMP? Free, fast and secure
Here is what makes this PNG to BMP tool different from most websites.
100% Free
Every feature of this tool is free for everyone. We do not lock better quality or bigger files behind a paid plan.
Fast results
Your file is processed right inside your browser, so there is no upload or download queue. Most jobs finish in a second or two, even on a slow mobile connection.
Secure and private
Privacy is built in: the conversion runs locally with JavaScript, so your data is never sent to us or anyone else. Close the tab and everything is gone.
No signup, no watermark
No registration and no watermark, ever. What you download is exactly your file.
Works on every device
Works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows, Mac and Linux. No app to install.
Quality you control
The BMP output keeps the full resolution of your PNG, with high-quality resizing and correct colours.
ConvertKaro vs other online converters
| ConvertKaro | Typical online tool | |
|---|---|---|
| Price | Free forever, every feature | Free trial, then paid plans |
| Your files | Stay on your device | Uploaded to a server |
| Signup | Not needed | Often required |
| Watermark or ads on result | Never | Common on free plans |
| Speed | Instant, no upload wait | Depends on upload speed |
| Daily limits | None | Usually limited |
PNG vs BMP: what is the difference?
This table shows the main differences between PNG and BMP.
| PNG | BMP | |
|---|---|---|
| Full name | Portable Network Graphics | Bitmap Image File |
| Type | Raster, lossless | Raster, uncompressed |
| Compression | Lossless | None |
| Transparency | Yes | No |
| Animation | No | No |
| File size | Large for photos, small for graphics | Very large |
| Support | Everywhere | Windows and most editors |
| Best for | Logos, screenshots, graphics with text, transparent images | Legacy Windows software, some printers and machines |
What is PNG?
PNG is a lossless image format, so it keeps every pixel exactly as it is. It supports full transparency, which makes it the standard choice for logos, icons, screenshots and graphics with sharp text. Because nothing is thrown away, photos saved as PNG are usually much larger than the same photo as JPG or WEBP. PNG works in every browser, design tool and operating system.
What is BMP?
BMP is the classic Windows bitmap format. It stores every pixel without compression, so the quality is perfect but the files are huge: a normal phone photo can become 10–30 MB. Today BMP is mostly used by older Windows programs, embroidery and printing machines, and some industrial software that expects raw pixel data.
When should you convert PNG to BMP?
- Legacy Windows software
- Embroidery, laser and industrial machines
- Programs that need raw, uncompressed pixels
- Some school and lab software
Tips for the best BMP results
- If your image has a transparent background, pick a background colour that matches where the image will be used.
- You can convert many PNG files at once. They are processed one after another and can be downloaded together as a ZIP.
- Keep your original PNG files until you have checked the converted BMP images.
How PNG to BMP keeps your photos and images private
When you add a file to PNG to BMP, it is opened with your browser’s own engine, processed in memory and offered back to you as a download. ConvertKaro never receives a copy. This is why the tool is fast even on 4G, why there is no daily limit, and why it is safe for confidential photos and images like ID proofs, bank documents, contracts and family photos.
Using PNG to BMP on your phone
On a phone, open this page in Chrome or Safari, tap the main button and pick files from your gallery, Files app or Google Drive. Results download straight to your phone, usually into the Downloads folder or Files app. You can also add this page to your home screen for one-tap access next time.
Who uses PNG to BMP?
PNG to BMP is used every day by people from many backgrounds, for example:
- Students uploading photos and signatures to exam and admission forms
- Online sellers preparing product photos for Instagram, Meesho, Amazon and Shopify
- Office staff handling ID cards, scans and screenshots
- Bloggers and web designers who need fast-loading images
- Anyone sharing pictures on WhatsApp, email or social media
Supported input: JPG, JPEG, PNG, WEBP, HEIC/HEIF (iPhone), AVIF, GIF, BMP, TIFF and SVG.
Frequently asked questions
Will converting PNG to BMP reduce quality?
BMP stores the image none, so no extra quality is lost during conversion.
Does BMP keep transparency from PNG?
BMP does not support transparency, so transparent areas are filled with a background colour. White is the default, and you can pick any colour before converting.
Can I convert multiple PNG files to BMP at once?
Yes. Select or drop as many PNG images as you like. Each one is converted separately, and you can download them all together as a ZIP file.
Is PNG to BMP really free?
Yes, completely free. You can use it as many times as you want, and every option on the page is included at no cost.
Is it safe to use PNG to BMP online?
Yes. Your files are processed inside your own browser and are never uploaded to our servers, so nobody else can see them.
Does PNG to BMP work on mobile?
Yes, the tool is built mobile-first. Open this page on your phone, add your files and download the result directly.
Is there a file size limit in PNG to BMP?
There is no fixed limit set by us because files are not uploaded. Very large files depend on your device’s memory; most phones handle files of 100 MB or more without problems.
Will ConvertKaro add a watermark or ask me to sign up?
No. There is no watermark, no login and no email required. Your downloaded file is exactly your result.
Does PNG to BMP work offline?
Once this page has finished loading, the tool keeps working even if your internet connection drops, because all processing happens on your device.