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EMF to AVIF Converter

Convert EMF to AVIF online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

  • Free to use
  • No file stored beyond 1 hour
  • Encrypted over TLS 1.2/1.3
  • No watermarks

Drag and drop your files here or click to upload.

Maximum file size is 1GB

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

  1. 01

    Upload your file

    Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

  2. 02

    Choose an output format

    Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

  3. 03

    Convert & download

    Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

EMF to AVIF

Why convert EMF to AVIF?

EMF is a vector format, while AVIF is a flexible (lossy or lossless) format. AVIF can have a transparent background, EMF can't.

  • Where AVIF works best

    The smallest high-quality images for the web.

EMF vs AVIF: what's the difference?

PropertyEMFAVIF
TypeImageImage
CompressionVector (sharp at any size)Lossy or lossless
Transparent backgroundNoYes
AnimationNoYes
Opens inWindows and Microsoft OfficeChrome, Edge, Firefox and Safari 16+; many apps can't open it yet
Best forVector graphics in Office documentsThe smallest high-quality images for the web

What is an EMF file?

Enhanced Metafile

Developed By
Microsoft
Initial Release
1993
MIME Type
image/emf

The Enhanced Metafile (EMF) is a 32-bit vector graphics format developed by Microsoft as a successor to the 16-bit Windows Metafile (WMF). It stores a sequence of device-independent GDI (Graphics Device Interface) drawing commands, allowing graphics to be rendered seamlessly across different output devices like printers and high-resolution displays. EMF resolves the coordinate limit issues of WMF and is commonly used within the Microsoft Office ecosystem for clipart and vector data storage.

How to open an EMF file

EMF files are natively supported by the Microsoft Windows operating system and can be opened with Windows Photo Viewer, Microsoft Paint, and Microsoft Office applications (Word, PowerPoint). On macOS, Apple Preview can convert and display EMF files. Cross-platform editing is possible using LibreOffice Draw or Inkscape, which can interpret the GDI commands and convert them to standard SVG paths.

What is an AVIF file?

AV1 Image File Format

Developed By
Alliance for Open Media
Initial Release
2019
MIME Type
image/avif

The AVIF (AV1 Image File Format) is an open, royalty-free raster image container specified by the Alliance for Open Media (AOMedia) in ISO/IEC 23000-12. It encapsulates image sequences or still images compressed with the AV1 video codec within the HEIF (High Efficiency Image File Format) container structure. AVIF supports high dynamic range (HDR) utilizing Perceptual Quantizer (PQ) or Hybrid Log-Gamma (HLG) transfer functions, wide color gamut (WCG), and 4:2:0, 4:2:2, or 4:4:4 chroma subsampling, offering superior compression efficiency over JPEG and WebP.

How to open an AVIF file

Native support for AVIF is available in modern web browsers including Google Chrome (v85+), Mozilla Firefox (v93+), and Safari (v16+). For local viewing, Windows 10 and 11 require the installation of the free 'AV1 Video Extension' from the Microsoft Store to enable support in the Photos app and File Explorer. macOS 13 (Ventura) and iOS 16 provide system-level support. Graphics editors like GIMP, Paint.NET, and Adobe Photoshop (via plugin) can also decode and edit these files.

More tools

More free vector tools

All vector conversions

Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

  • Convert EMF to AVIF in seconds

    Every EMF to AVIF conversion runs on our servers, so your device stays fast and the output quality stays intact.

  • Fast, cloud-powered

    No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

  • Secure & private

    Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

  • Free - no account needed

    Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.

Developer API

Convert EMF to AVIF via API

Automate EMF to AVIF conversions in three steps: create a job, upload your file, then poll for the result.

Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.

# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tag": "emf-to-avif",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "avif"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.emf

# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
  -H "Authorization: Bearer YOUR_API_KEY"

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