BMP to PNG converter. Convert bitmap images to PNG with lossless compression. Reduce BMP file size up to 90%. 100% browser-based — no uploads required.
100% browser-based — your data never leaves your device
Convert BMP bitmap images to PNG format with lossless compression. Reduce file size up to 90% while preserving every pixel.
Drop a BMP file or click to browse
Supports all standard BMP formats — 1-bit to 32-bit color depth
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BMP to PNG Converter is a free online image tool that convert bmp bitmap images to png format with lossless compression. reduce file size up to 90% while preserving every pixel. It works entirely in your browser — no downloads, no installations, and no server uploads required. web designers, e-commerce managers, social media marketers use BMP to PNG Converter when they need a fast, privacy-respecting way to process image data without installing additional software. It supports capabilities such as lossless conversion, file size reduction, side-by-side preview. Additional features include browser-based. Common use cases include converting old bmp screenshots and diagrams to png for modern web use, reducing bmp file sizes for email attachments and cloud storage, archiving bitmap images in png format for lossless long-term storage. All processing happens locally using modern browser APIs, which means your data never leaves your device. This makes BMP to PNG Converter ideal for working with sensitive data, proprietary code, or any situation where privacy matters.
BMP to PNG Converter is a free online image tool that helps you convert bmp bitmap images to png format with lossless compression. reduce file size up to 90% while preserving every pixel. Key capabilities include lossless conversion, file size reduction, side-by-side preview. All processing is done locally in your browser — no data is uploaded, stored, or shared with any server. There are no sign-ups, no file size limits, and no hidden charges. It is commonly used to converting old bmp screenshots and diagrams to png for modern web use.
Select a BMP bitmap image from your device or drag and drop it onto the upload area.
Click the Convert button to transform your BMP into a compressed PNG. The conversion happens instantly in your browser.
Preview the converted PNG and download it. The PNG preserves all visual quality while being significantly smaller than the original BMP.
| Category | Details |
|---|---|
| Input Limits | Maximum resolution: Device / browser memory bound |
| Maximum file size: Browser memory bound | |
| Supported Formats | PNG, JPEG, WebP, GIF, SVG, BMP, ICO, AVIF |
| Browser Engine |
|
All operations run entirely in your browser using built-in Image APIs. No server uploads, no data storage, and no third-party requests.
BMP to PNG Converter is ideal when you need to converting old bmp screenshots and diagrams to png for modern web use without installing software or uploading data to a server. Since everything runs in your browser, there is no setup time and no risk of your data being stored on external servers. For for server-side batch image processing, consider using ImageMagick. For for programmatic image manipulation in applications, Sharp (Node.js) may be a better fit. BMP to PNG Converter fills the gap between heavyweight desktop tools and insecure online services that require uploading your data.
No. BMP to PNG Converter processes everything entirely in your browser using JavaScript. Nothing you type, paste, or upload is ever transmitted to any server. Your data never leaves your device.
BMP files are uncompressed and can be 2-10x larger than PNG. PNG uses lossless compression that preserves all pixel data while drastically reducing file size, making images faster to upload, share, and store.
No. PNG uses lossless compression, meaning every pixel is preserved exactly. The visual quality is identical to the original BMP — only the file size is smaller.
Every pixel from your BMP is preserved in the PNG output. Perfect for screenshots, diagrams, and archival-quality images.
PNG compression shrinks BMP files by 50–90% depending on image complexity. See the exact savings after conversion.
Compare original BMP and converted PNG visually with size and dimension info for both files.
All processing happens in your browser using Canvas API. Your images never leave your device — no uploads, no servers.
BMP to PNG Converter is useful in a variety of scenarios across different workflows:
Converting old BMP screenshots and diagrams to PNG for modern web use
Reducing BMP file sizes for email attachments and cloud storage
Archiving bitmap images in PNG format for lossless long-term storage
Preparing BMP images for web publishing where PNG is the standard format
PNG's lossless compression excels with screenshots, diagrams, and text-heavy images. Unlike JPEG, PNG preserves sharp edges and text clarity perfectly.
The tool shows exact file sizes for both BMP and PNG. Complex photographic BMPs may compress less than simple diagrams, but PNG is always smaller than BMP.
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