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Free image converters for Windows

To convert image formats on Windows for free, the apps below document image conversion on Windows with a free pricing model. Compare batch support and which formats each one lists.

Conditions checked

  • Windows
  • Convert image formats
  • Free

Before you choose

A free license can be limited to personal or non-commercial use; check the notes. Formats that aren't listed are unknown, not unsupported.

Documented conditions compared

Each cell reflects the catalog's current qualified sources for this platform. Not documented means unknown, not unsupported. Notes and sources are on each app below.

AppBatch processingHEIC filesWebP files
Format FactoryNot documentedDocumentedDocumented
iMazing ConverterNot documentedDocumentedNot documented
IrfanViewDocumentedDocumentedDocumented
Shutter EncoderDocumentedNot documentedDocumented
XnConvertDocumentedNot documentedDocumented

Products with evidence for these conditions

Listed alphabetically, with no paid placement. Inclusion establishes these documented conditions, not a hands-on endorsement or a guarantee of fit.

  • Format Factory

    Windows

    Windows · Convert image formats · Free · HEIC files · WebP files

  • iMazing Converter

    Windows

    Windows · Convert image formats · Free · HEIC files

    • Converts HEIC photos to JPG or PNG only.
    • Converts HEIC photos to JPG or PNG; it doesn't convert other formats to HEIC.

  • IrfanView

    Windows

    Windows · Convert image formats · Free · Batch processing · HEIC files · WebP files

    • Freeware for non-commercial use.
    • Read-only, and only after installing a separate HEIC codec plugin; IrfanView can't save/export HEIC.
    • Reading and writing WebP requires installing IrfanView's WebP plugin; it isn't built in by default.

  • Shutter Encoder

    Windows

    Windows · Convert image formats · Free · Batch processing · WebP files

  • XnConvert

    Windows

    Windows · Convert image formats · Free · Batch processing · WebP files

    • Freeware for private or educational use, including non-profit organizations. Company use needs a paid licence, from €15 per licence; the page states the price only in euros.

Sources for the apps above were checked on 2026-09-26.

Also documented, but outside this guide's conditions

These apps have evidence for the same platform and task, but one condition above is unmet or not documented. That is why they are not listed above.

  • Wondershare UniConverter

    Free: Not supported according to the source

    Recorded: Subscription · One-time purchase

    The free trial converts only 1/3 of each video's length, allows 1 media-source download, and watermarks batch image conversions, so it isn't a usable free tier. Every plan, including the perpetual one, comes with a free trial of the AI creation tools that renews automatically at US$19.99 a month unless cancelled.

Common questions

Can I convert many images at once?

Where the batch column shows it as documented. Otherwise treat batch conversion as unknown and test on copies.

Is a free app free for work use?

Not always. Some free licenses cover only personal or non-commercial use, and some free editions keep important features paid. The notes on each card show what the sources record.

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