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jark006/JarkViewer

A minimalist, fast Windows image viewer that opens AVIF, HEIC, JPEG XL, RAW, animated and Live Photos, with a built-in video and audio player.

Open-source alternative to:Windows Photos

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What is it?

JarkViewer is a lightweight image viewer for Windows that opens common formats like JPEG and PNG as well as newer ones such as AVIF, HEIC, JPEG XL, and QOI, plus RAW camera files, animated images, iOS Live Photos and Android motion photos. Video and audio files open in a separate built-in player with seeking, volume control, a live spectrum view for audio, and a media info panel.

It ships as a single portable executable with statically linked dependencies, so it runs without installation. Common actions such as zooming, rotating, panning, slideshows, frame-by-frame browsing of animations, and moving or deleting files are mapped to keyboard shortcuts and mouse gestures.

Beyond viewing, it includes a print preview with black-and-white and dithering modes, a markup editor with shapes, text and mosaic tools, batch conversion and resizing, and file renaming. On Windows it can register file associations and provide Explorer thumbnails for supported formats through a bundled DLL.

Key features

  • 01Opens AVIF, HEIC, JPEG XL, QOI, RAW and many other formats.
  • 02Plays iOS Live Photos and Android motion photos, and exports embedded videos without re-encoding.
  • 03Built-in player for video and audio with seeking, volume control and a media info panel.
  • 04Batch convert, resize, rotate and rename images in a folder.
  • 05Markup editor with shapes, text, mosaic and crop tools.
  • 06Portable single executable with statically linked dependencies.

Use cases

  • Viewing modern photo formats from iPhones or Android phones on a Windows PC.
  • Browsing RAW camera files and Stable Diffusion or ComfyUI outputs with their embedded metadata.
  • Quickly marking up or cropping screenshots before sharing.
  • Converting a folder of HEIC or AVIF photos to JPEG or PNG in one pass.

Topics

#image-viewer#avif#heic#jpeg-xl#raw-image#live-photo#windows#photo#heif#ico

FAQ

What is JarkViewer?
A minimalist, fast Windows image viewer that opens AVIF, HEIC, JPEG XL, RAW, animated and Live Photos, with a built-in video and audio player. JarkViewer is a lightweight image viewer for Windows that opens common formats like JPEG and PNG as well as newer ones such as AVIF, HEIC, JPEG XL, and QOI, plus RAW camera files, animated images, iOS Live Photos and Android motion photos. Video and audio files open in a separate built-in player with seeking, volume control, a live spectrum view for audio, and a media info panel.
Is JarkViewer free to use? What license does it have?
JarkViewer is open source under the GPL-3.0 license. Check the license terms before using it in commercial products.
Is JarkViewer still maintained?
Actively maintained. The last commit to JarkViewer was on Oct 17, 2026.
What can I use JarkViewer for?
Viewing modern photo formats from iPhones or Android phones on a Windows PC. Browsing RAW camera files and Stable Diffusion or ComfyUI outputs with their embedded metadata. Quickly marking up or cropping screenshots before sharing. Converting a folder of HEIC or AVIF photos to JPEG or PNG in one pass.
Where can I get JarkViewer?
The source code and installation instructions are on GitHub: https://github.com/jark006/JarkViewer

Summary generated by AI from the project's README. GitHub stats refresh daily.

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