Convert BMP to PNG

Convert BMP to PNG online in bulk with lossless quality — free BMP to PNG converter.

Images

About

About the BMP to PNG Converter

Upload one or more BMP images and get lossless PNG files back instantly — PNG compresses the same exact pixel data without throwing anything away, so you get all of BMP's zero-quality-loss guarantee in a far smaller, more widely supported web file.

PNG compresses without losing a single pixel, so a BMP converted to PNG looks identical but is usually a fraction of the size — especially for screenshots, icons and diagrams with large areas of flat colour. There's no quality setting to worry about, because PNG output is always lossless.

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Guide

Using the BMP to PNG Converter

  1. 1

    Step 1

    Click the upload area and choose one or more BMP images — add as many as you like.

  2. 2

    Step 2

    "Convert from" is preset to BMP and "Convert to" to PNG below.

  3. 3

    Step 3

    The quality setting has no effect on this PNG output, which is lossless.

  4. 4

    Step 4

    Click Convert, then save each converted image with its own Download button.

  • Lossless — every pixel matches the original BMP
  • Usually far smaller files, especially for screenshots and graphics
  • No quality setting needed; PNG output is always full quality
  • Convert as many images as you like in one batch, each with its own Download button
  • Shows each file's size before and after
  • Runs in your browser — free, nothing uploaded and no watermark

Developers

Developers convert BMP icons and resources from old projects.

Documentation writers

Writers turn screenshots from legacy tools into PNGs for manuals.

Designers

Designers bring BMP artwork into editors and web pages as PNG.

Archivists

Archivists shrink BMP collections without losing any detail.

Popular conversions

JPG PNG JPG WebP JPG BMP PNG JPG PNG WebP PNG BMP WebP JPG WebP PNG WebP BMP BMP JPG BMP WebP

Examples

BMP to PNG examples

3 worked examples

01

A screenshot

A 1440×900 uncompressed screenshot.bmp (3.71 MB) compresses losslessly to a 151 KB PNG with every pixel unchanged.

02

Logo artwork

Flat-colour artwork compresses especially well: a 768 KB logo.bmp becomes a 69 KB logo.png — the name is kept, only the extension changes.

03

A scanned page

Photo-like content compresses less: a 6.22 MB BMP scan becomes a 3.92 MB PNG — still lossless, but convert to JPG if you need it much smaller.

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FAQ

Frequently asked questions

Quick answers to common questions about the BMP to PNG Converter.

How do I convert BMP to PNG?

Upload your BMP image(s) above — the format is already preset to BMP to PNG — then click Convert. Each file converts entirely in your browser.

Is this BMP to PNG converter free?

Yes. It's free, with no sign-up and no limit on how many images you convert.

Will I lose any quality converting BMP to PNG?

No — PNG is lossless, so every pixel from the original BMP is preserved exactly, just stored more efficiently with compression.

Why convert BMP to PNG instead of JPG?

PNG keeps the same zero-quality-loss guarantee BMP has, while JPG trades some quality for an even smaller file — PNG is the better choice when you want a smaller file but can't accept any loss.

Are my images uploaded to a server?

No. Every conversion happens directly in your browser using the browser's own image encoder — your files never leave your device.

Can I convert PNG back to BMP?

Yes — use the dedicated PNG to BMP converter page, or just swap the format dropdowns here.

Why does the quality setting do nothing for PNG?

PNG is lossless, so there's nothing to tune — every pixel is always stored exactly. The quality box only affects JPEG and WebP output.

Does the PNG keep the original dimensions?

Yes. The image is converted at its exact pixel size; nothing is resized, cropped or recoloured.

Can I convert a whole folder of BMP files?

Yes. Select or drop as many BMP files as you like — new files are added to the list instead of replacing it, each one can be removed individually, and every result gets its own Download button.

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