WMZ to BMP Converter

WMZ to BMP online — seamless format conversion

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Batch Processing

Queue multiple WMZ files for conversion at once. Each file produces its own BMP output independently.

No Account Needed

No account creation required for basic conversions. Go from WMZ to BMP in seconds without any signup steps.

Visual Fidelity

From WMZ raw data to polished BMP output — the conversion maintains the visual integrity of your content.

How to convert WMZ to BMP

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose bmp or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your bmp file right afterwards

About formats

WMZ is a compressed variant of the Windows Metafile (WMF) format, introduced by Microsoft with Office 2000 in 1999. A WMZ file is simply a WMF file compressed using the gzip algorithm (RFC 1952), reducing the file size for more efficient storage and embedding within Office documents, web pages, and other containers. The underlying WMF format stores vector graphics as a sequence of GDI (Graphics Device Interface) function calls — commands that draw lines, curves, polygons, text, and bitmaps — recorded in a device-independent format that can be replayed at any resolution. WMZ preserves this vector nature: when decompressed, the file produces a standard WMF that renders through the Windows GDI subsystem using the same drawing primitives as on-screen display, ensuring visual fidelity across different output devices and resolutions. WMZ files are commonly found embedded in Microsoft Office documents (Word, Excel, PowerPoint), HTML email messages generated by Outlook, and web content produced by Office's Save as Web Page feature. The format is also used for clip art and template graphics distributed with Office installations. One advantage is space efficiency: gzip compression typically reduces WMF file sizes by 60-80%, meaningful when many small graphics are embedded in a single document or web page. The format's deep integration with the Microsoft Office ecosystem is another practical strength — WMZ graphics render natively in all Office applications without additional software, and can be extracted, decompressed, and converted using tools like LibreOffice, ImageMagick, Inkscape, and standard gzip utilities.
Developer: Microsoft
Initial release: 1999
BMP (Bitmap) is a raster image file format developed by Microsoft for the Windows operating system, introduced with Windows 3.0 in 1990. The format stores pixel data in a straightforward structure: a file header specifying dimensions, color depth, and compression method, followed by an optional color palette and then the raw pixel array. BMP supports color depths from 1-bit monochrome through 4-bit and 8-bit indexed color to 16-bit, 24-bit true color, and 32-bit with alpha channel. Most BMP files store pixels uncompressed (BI_RGB), though optional RLE compression is available for 4-bit and 8-bit modes. Pixels are arranged in bottom-up row order by default, with each row padded to a 4-byte boundary. One advantage is absolute simplicity — the format has no complex encoding, filtering, or compression layers, making BMP files trivial to read and write programmatically in any language. This simplicity also means BMP images render with zero decoding overhead, useful in scenarios where decompression latency matters. The format's deep Windows integration is another strength: BMP is the native bitmap format for Windows GDI, clipboard operations, and device-independent bitmap (DIB) handling, ensuring first-class support across the entire Windows ecosystem. While BMP's lack of compression produces large files unsuitable for web use or storage-constrained environments, it remains widely used as an intermediate format in image processing, as a clipboard exchange format, and in embedded systems where decoding simplicity outweighs file size.
Developer: Microsoft
Initial release: 1990

Frequently Asked Questions

Why convert WMZ to BMP?

WMZ data from Microsoft Office documents and Windows clipboard becomes universally viewable once converted to BMP format.

How do I open BMP files?

You can open BMP with Windows Paint, any image viewer, or graphics editor. No specialized software is needed on most modern systems.

Does the conversion happen on my device?

Convertio handles all processing on its servers — your device just uploads the WMZ and downloads the BMP result.

How long does WMZ to BMP conversion take?

Seconds for most files. Convertio processes WMZ data on powerful servers, so even bigger files convert quickly.

What platforms support this conversion?

Any device with a web browser can run this conversion. Desktop, laptop, tablet, or phone — all supported equally.

Is WMZ to BMP conversion accurate?

Yes — the conversion engine renders WMZ content precisely into BMP format, retaining visual accuracy throughout.