BMP Converters

Convert BMP to PNG, JPG and WebP, or turn images back into BMP, free in your browser.

Convert BMP to PNG

9 free tools · no signup · no watermarks

About these bmp converters

Convert BMP to PNG, JPG or WebP, or turn PNG, JPG and WebP images back into BMP. BMP (Bitmap) files are uncompressed, which keeps perfect quality for editing but makes them large and unsuitable for the web.

Every conversion runs locally in your browser: nothing is uploaded, there are no file size limits, and BMP files are written right on your device.

WHICH BMP TOOL TO USE

  • BMP to PNG for a smaller, lossless copy that opens everywhere
  • BMP to JPG for the smallest possible photo files
  • BMP to WebP when the image is going on a website
  • PNG, JPG or WebP to BMP when an old app or device needs a raw bitmap
  • Compress BMP to shrink a BMP while keeping the .bmp format

BMP vs PNG vs JPG vs WebP at a glance

Format Compression Transparency Best for
BMP None (very large) No Editing, legacy Windows apps and raw bitmaps
PNG Lossless (smaller) Yes Lossless graphics, screenshots and logos
JPG Lossy (smallest) No Photos for sharing and the web
WebP Lossy or lossless (tiny) Yes Modern websites where loading speed matters

What is a BMP file?

BMP (Bitmap) is an uncompressed image format Microsoft created for Windows. It stores every pixel exactly, which makes it simple and perfectly lossless, but also very large.

  • Uncompressed and lossless, so quality is perfect with no artifacts
  • Very large files, often 10 to 50 times bigger than a PNG or JPG
  • Widely supported on Windows, but a poor fit for the web
  • Little practical transparency support compared with PNG

BMP vs PNG: which should you use?

  • Choose PNG for almost everything: it is lossless like BMP but far smaller
  • PNG has full transparency, which standard BMP does not
  • Keep BMP only when an app, device or workflow specifically requires it
  • For photos headed to the web, JPG or WebP beat both on file size

Why are BMP files so large?

BMP stores each pixel with no compression at all, so a single photo can run to tens of megabytes. PNG adds lossless compression and JPG adds lossy compression, which is why both are dramatically smaller for the same image.

How do I make a BMP file smaller?

  • Convert it to PNG for a smaller copy that is still lossless
  • Convert it to JPG or WebP for the smallest files of all
  • Or use Compress BMP to reduce its dimensions while keeping the .bmp format

Explore more image tool hubs

  • PNG Converters: Convert, compress and edit PNG files: the format for screenshots, logos and transparent graphics.
  • Image Compressors: Every compression tool in one place: shrink JPG, PNG, WebP and GIF files, or hit an exact size target.
  • WebP Converters: Convert images to WebP for a faster website, or turn WebP files back into JPG and PNG that open anywhere.
PNG Converters

BMP Converters FAQ

What is a BMP file?

BMP (Bitmap) is an uncompressed image format from Microsoft. It keeps every pixel exactly, which is great for editing but makes files very large and a poor fit for the web.

Should I use BMP or PNG?

Use PNG in almost every case. It is lossless like BMP but far smaller, supports transparency and opens in every browser. Keep BMP only when a specific app or device requires it.

Why are BMP files so large?

BMP applies no compression at all, so every pixel is stored in full. Converting to PNG for lossless or JPG for lossy shrinks the file dramatically with no visible quality drop.

Can BMP files have transparency?

Standard 24-bit BMP files do not support transparency, and support for 32-bit alpha BMP is patchy. If you need transparency, use PNG or WebP instead.

How do I make a BMP file smaller?

Convert it to PNG, JPG or WebP for a much smaller file, or use Compress BMP to reduce its dimensions while keeping the BMP format. All of it happens in your browser.

Can I use BMP images on websites?

It is not recommended. BMP files are huge and slow to load, and some browsers display them poorly. Convert to PNG, JPG or WebP for anything on the web.

Are conversions done on your servers?

No. BMP files are decoded and written entirely in your browser, so your images never leave your device and there are no size limits or daily caps.