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IMAGE

WMF to AVIF Converter — Free, Online, No Signup

Convert WMF files to AVIF online with no signup required.

Reverse conversion

WMF at a glance

WMF

The original WMF specification was published in the Windows 3.1 SDK documentation in 1992. Aldus Corporation independently added a 'placeable' header for device independence, which Microsoft later incorporated in Windows 2000. The format specification was republished in 2006 under the Microsoft Open Specification Promise.

AVIF at a glance

AVIF

AVIF emerged from the Alliance for Open Media's work around AV1 and uses the HEIF family as its structural container, which connects it to both modern web delivery and newer image-container design.

Format comparison

Feature
WMF
AVIF
File type

Vector

Image

Extensions
  • .wmf

  • .avif

MIME type
  • image/wmf

  • image/avif

Created year

1990

2019

Inventor

Microsoft Corporation

Alliance for Open Media

Status

legacy

active

Transparency

Not supported

Not supported

Animation

Not supported

Supported

Primary use cases
  • illustration

  • diagramming

  • brand asset delivery

  • capture ingest

  • editing

  • web or print delivery

Layer support

Not supported

Not supported

Vector scaling

Supported

Not supported

When to use each format

When to use WMF

  • Your source file is already in WMF.
  • Preserve source expectations before exporting to AVIF.
  • WMF is commonly used in vector workflows.

When to use AVIF

  • Your target workflow expects AVIF.
  • Improve delivery compatibility with AVIF.
  • AVIF is commonly used in image workflows.

FAQs

Why convert WMF to AVIF?

Convert to AVIF when you need compact, high-quality web or app images, especially for responsive delivery, ecommerce, editorial sites, and modern UI assets.

It is a strong target when bandwidth savings and visual quality both matter.

What changes when converting WMF to AVIF?

This conversion changes how the format behaves in downstream tools and delivery environments.

Moving to AVIF adds animation support. Moving to AVIF removes vector scaling.

What should I review after converting WMF to AVIF?

Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.

Format resources

WMFAVIF

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