.ico file: how to open it on Windows
36 Windows apps register the .ico extension. Install one of them to open the file with a double-click.
About the format
Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).
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ImageGlassA lightweight, versatile image viewer
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File ConverterFile Converter is a very simple tool which allows you to convert and compress one or several file(s) using the context menu in windows explorer.
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IrfanViewFast and compact image viewer and converter
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MPV (Official CI build, MSVC)A free (as in freedom) media player for the command line. It supports a wide variety of media file formats, audio and video codecs, and subtitle types.
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PicView100% free and open source picture viewer
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FreeCADA general purpose open source parametric 3D CAD modeler
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XnView MPProfessional Image Viewer & Photo Management
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ImagineImagine Freeware Image & Animation Viewer for Windows
- GIMP
GIMP is an acronym for GNU Image Manipulation Program. It is a freely distributed program for such tasks as photo retouching, image composition and image authoring.
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SageThumbsA powerful shell extension allowing to preview enormous amount of image formats directly in Windows Explorer.
- Vivaldi
Powerful, Personal and Private web browser.
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ImageGlass (MSI)A lightweight, versatile image viewer
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qViewAn image viewer designed with minimalism and usability in mind.
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qView NightlyqView is an image viewer designed with minimalism and usability in mind.
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JarkViewerA simple image viewer.
- Okular
The Universal Document Viewer
- WPS Office
Complete office suite with PDF editor
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Quick Picture ViewerLightweight, versatile desktop image viewer for Windows. The best replacement for the default Windows photo viewer.
- ACDSee Free
ACDSee Free is a fast and powerful file browser, ideal for viewing RAW images, as well as searching and sorting your media libraries.
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madamiruDynamic multi-multimedia player
- 搜狐影音
Versatile media player by Sohu Video.
- PicPick
All-in-one design tool for everyone
- ACDSee Photo Studio Ultimate 2026
Navigate Your Creative Path and Digital Assets with AI-Powered Precision
- ACDSee Photo Studio Home 2026
ACDSee Photo Studio Home 2026 equips you with the tools to master your extensive photo collection.
- ACDSee Photo Studio Professional 2026
ACDSee Photo Studio Professional supplies you with a resourceful toolkit that blends cutting-edge, locally powered Artificial Intelligence (AI) with legendary digital asset management and sophisticated RAW image editing.
- XnView
Best Photo Viewer, Image Resizer & Batch Converter for Windows.
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FICture2Fast and lightweight image viewer with DirectX rendering
- WPS Office
Complete office suite with PDF editor
- 爱奇艺万能播放
Super Powerful Video Player
- ACDSee Gemstone Photo Editor 15
ACDSee Gemstone Photo Editor 15 is your launchpad for limitless creativity, built to fuel every graphic design and photo editing journey. Engineered for both precision and ease, Gemstone gives you the freedom to explore new creative frontiers.
- Axialis IconGenerator
Axialis IconGenerator is a free icon production tool for professional developers, UI designers and illustrators. It lets you create vector & bitmap icons in seconds from a database of ready-to-use icon sets.
- BandiView
A New Standard for Image Viewers
- Pichon
Dive into Pichon, your new all-around graphics collection!
- Okular (AppX / Portable)
The Universal Document Viewer
- PicPick
All-in-one design tool for everyone
- Vovsoft Batch Image Converter
Vovsoft Batch Image Converter is a simple tool for converting between graphic formats in batches. With its help, you can easily obtain images in the desired format out of a folder containing pictures of diverse types.
Related guide: Change the default app for a file type in Windows