WMZ to HEIC Converter

Turn WMZ data into HEIC images — browser-based

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Works on Any Device

No platform restrictions. Desktop, laptop, tablet, or phone — Convertio handles WMZ to HEIC conversion everywhere.

Fast Conversion

Quick turnaround from WMZ to HEIC — powered by high-performance cloud servers that handle conversions efficiently.

Batch Processing

Batch mode lets you convert many WMZ files to HEIC at once — no need to process one at a time.

How to convert WMZ to HEIC

1

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

2

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

3

Let the file convert and you can download your heic 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
HEIC (High Efficiency Image Container) is Apple's branded implementation of the HEIF (High Efficiency Image File Format) standard that uses HEVC (H.265) as its image compression codec. Apple adopted HEIC as the default photo format on iPhones and iPads starting with iOS 11 in September 2017, replacing JPEG for newly captured images. HEIC files store photographs compressed with the intra-frame coding mode of the HEVC video codec, which applies sophisticated prediction, transform, and entropy coding techniques that achieve roughly 50% better compression than JPEG at equivalent visual quality. The ISOBMFF (ISO Base Media File Format) container supports multiple images in a single file, enabling Live Photos (a still plus a short video clip), burst sequences, depth maps from dual-camera systems, and HDR gain maps that allow compatible displays to render extended dynamic range. HEIC also stores alpha channels, auxiliary images for computational photography features (portrait mode depth data, semantic segmentation masks), and comprehensive EXIF/XMP metadata. One advantage is storage efficiency: iPhones shooting HEIC use roughly half the storage of equivalent JPEG captures with no visible quality loss, a significant benefit on devices where storage is finite and photos accumulate rapidly. The format's integration with Apple's ecosystem is another key strength — HEIC files are natively supported across macOS, iOS, iPadOS, and iCloud Photos, and automatic JPEG transcoding during file sharing ensures compatibility when sending photos to non-Apple devices. HEIC can also be opened by Windows 10/11 (with codec), GIMP, ImageMagick, and Adobe Lightroom.
Developer: MPEG / Apple
Initial release: 2015

Frequently Asked Questions

Why convert WMZ to HEIC?

Converting WMZ to HEIC lets you extract vector graphics from Office documents into standard image formats — HEIC is widely recognized and easy to share.

How do I open HEIC files?

Apple devices natively, Windows with HEVC extension will handle HEIC files without issues. The format is well-supported across platforms.

Does the conversion happen on my device?

No — conversion runs on Convertio servers. Your device handles only the upload and download, not the processing.

Can I convert multiple WMZ files at once?

Upload as many WMZ files as you need. Every file processes independently and delivers its own HEIC output.

What quality can I expect from HEIC output?

Quality depends on the source data, but HEIC format provides HEVC compression with excellent quality for excellent results.

Do I need to install anything?

No installation required. Convertio runs in your web browser — just open the page, upload your WMZ file, and convert.