BMP to PNG Converter

Add your BMP files — drag in or click to browse.

Convert — each file becomes a lossless PNG locally.

Download — save each PNG, or click Download All as ZIP. ```

Yes. PNG is a lossless format, so the converted image keeps every pixel of the BMP exactly. Unlike JPG, it adds no compression artefacts, which makes it the right choice for screenshots, graphics, and anything with sharp edges or text.

Almost always, and often by a lot. BMP is uncompressed, while PNG compresses losslessly, so a PNG of the same image is typically much smaller with no quality difference. You keep exact quality and gain a far more practical file size.

Choose PNG for lossless quality, sharp graphics, or transparency. Choose JPG when you want the smallest possible file for a photo and can accept slight lossy compression. For exact reproduction, PNG is the better target.

If the source BMP has an alpha channel, PNG preserves it. Most standard BMP files have no transparency, so the PNG will simply have the same solid background, reproduced losslessly.

BMP files are huge and poorly supported on the web. PNG gives you a lossless, widely supported copy at a fraction of the size — ideal for sharing screenshots and graphics without losing any quality.

BMP (bitmap) is an old image format that stores pixels without compression, producing very large files. It's still used by some legacy software, but modern formats like PNG, JPG, and WebP are far more efficient for sharing and the web.

No. The converter runs entirely in your browser using the HTML5 Canvas, so your files are processed on your own device and never uploaded. Nothing is stored once you close the tab. That keeps your images private and makes conversion fast, because there's no upload or download to a server.

Yes. Drag in a whole batch and the tool converts them all locally. Download each result from its card, or click "Download All as ZIP" to save the entire set in one folder. There's no cap on the number of files beyond your device's memory.

Yes. It runs in your phone's browser with nothing to install, so you can convert files on Android or iOS and download the result. Small batches convert quickly; very large or high-resolution sets use more memory and are smoother on a computer, but everyday conversions work fine on mobile.

There's no artificial cap or paywall, because nothing is uploaded — the work happens on your device. The practical limit is your device's memory. A large batch of high-resolution images uses more memory and is smoother on a computer, but everyday conversions run quickly even on a phone.

No. There's nothing to download or install and no account to create. The converter runs in any modern web browser, on any operating system, so you don't need a desktop image editor or codec. Just open the page, add your files, and convert.

Yes, it's completely free with no account and no limits, and it adds no watermark — what you download is clean. Because everything runs locally in your browser, there's no paywall and no usage cap.