Browse free open source Image Viewers and projects below. Use the toggles on the left to filter open source Image Viewers by OS, license, language, programming language, and project status.

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  • 1
    WinDjView

    WinDjView

    A fast, compact, and powerful DjVu viewer

    WinDjView is a fast, compact and powerful DjVu viewer for Windows with tabbed interface, continuous scrolling and advanced printing options, based on free DjVuLibre library. MacDjView is a simple DjVu viewer for Mac OS X, also with continuous scrolling.
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    Downloads: 4,610 This Week
    Last Update:
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  • 2
    Skim

    Skim

    A PDF Reader and Note-taker for OS X

    Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file. Skim requires OS X 10.10 or higher.
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    Downloads: 3,774 This Week
    Last Update:
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  • 3
    GPXSee

    GPXSee

    GPS log file viewer and analyzer

    GPS log file viewer and analyzer with support for GPX, TCX, KML, FIT, IGC, NMEA, SLF, SML, LOC, GPI, GeoJSON and OziExplorer files.
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    Downloads: 4,494 This Week
    Last Update:
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  • 4
    SageThumbs

    SageThumbs

    Powerful Windows shell extension allowing to preview images.

    SageThumbs is a powerful shell extension allowing to preview enormous amount of image formats directly in Windows Explorer by using Pierre-e Gougelet's GFL library (XnView's author). Please read carefully the following information: As SageThumbs is a Windows Explorer context menu extension, there is no an executable file that you should launch to bring it up. To use it, just open any folder with image files in Windows Explorer, and then right-click a file you want to preview. You'll see the thumbnail immediately in the context menu. System Requirements: * Windows XP/2003/Vista/2008/7/2012/8/8.1 32/64-bit * About 5 Mb of disk space + additional space for cache
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    Downloads: 4,603 This Week
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  • 5
    gPhoto
    gPhoto is a program and library framework that lets users download pictures from their digital cameras. The libgphoto2 library gives you access to hundreds of models of digital cameras on several platforms. GIT repo and Issue tracker lives at https://github.com/gphoto/ these days.
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    Downloads: 3,484 This Week
    Last Update:
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  • 6

    GraphicsMagick

    Swiss army knife of image processing

    GraphicsMagick provides a set of commandline tools and programming APIs for manipulating, editing, and converting raster and vector images. It is derived from ImageMagick, with the objective of providing better stability and performance than ImageMagick while retaining the original MIT/X11 license.
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    Downloads: 3,132 This Week
    Last Update:
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  • 7
    DjVu is a web-centric format for distributing documents and images. DjVu was created at AT&T Labs-Research and later sold to LizardTech Inc. DjVuLibre is a GPL implementation of DjVu maintained by the original inventors of DjVu.
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    Downloads: 2,009 This Week
    Last Update:
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  • 8
    FreeImage is a library project for developers who would like to support popular graphics image formats (PNG, JPEG, TIFF, BMP and others). Some highlights are: extremely simple in use, not limited to the local PC (unique FreeImageIO) and Plugin driven!
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    Downloads: 1,928 This Week
    Last Update:
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  • 9
    JPEGView - Image Viewer and Editor

    JPEGView - Image Viewer and Editor

    Lean and fast image viewer with minimal GUI

    JPEGView is a lean, fast and highly configurable viewer/editor for JPEG, BMP, PNG, WEBP, TGA, GIF and TIFF images with a minimal GUI. Basic on-the-fly image processing is provided - allowing adjusting typical parameters as sharpness, color balance, rotation, perspective, contrast and local under-/overexposure.
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    Downloads: 1,211 This Week
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  • 10
    Cool Reader

    Cool Reader

    A cross-platform XML/CSS based eBook reader

    CoolReader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices. Supported formats: FB2, TXT, RTF, DOC, TCR, HTML, EPUB, CHM, PDB, MOBI. Platforms: Win32, Linux, Android. Ported on some eInk based devices.
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    Downloads: 471 This Week
    Last Update:
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  • 11

    Developer's Image Library

    A full featured cross-platform image library

    Developer's Image Library (DevIL) is a cross-platform image library utilizing a simple syntax to load, save, convert, manipulate, filter and display a variety of images with ease.
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    Downloads: 391 This Week
    Last Update:
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  • 12
    DJV

    DJV

    DJV provides professional review software for VFX, animation, and film

    DJV provides professional review software for VFX, animation, and film production. Playback high resolution, high bit-depth, image sequences and videos, with frame accurate control and color management. Available for Linux, Apple macOS, and Microsoft Windows. Source code is provided under a BSD style open source license.
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    Downloads: 376 This Week
    Last Update:
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  • 13
    libmng -THE reference library for reading, displaying, writing and examining Multiple-Image Network Graphics. MNG is the animation extension to the popular PNG image-format.
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    Downloads: 1,223 This Week
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  • 14
    GeoTools, the Java GIS toolkit

    GeoTools, the Java GIS toolkit

    Toolkit for working with and mapping geospatial data

    GeoTools is an open source (LGPL) Java code library which provides standards compliant methods for the manipulation of geospatial data. GeoTools is an Open Source Geospatial Foundation project. The GeoTools library data structures are based on Open Geospatial Consortium (OGC) specifications.
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    Downloads: 167 This Week
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  • 15
    JarkViewer

    JarkViewer

    A lightweight, lightning-fast, and powerful image viewer

    JarkViewer is a lightweight, lightning‑fast image viewer for Windows 10/11 (64‑bit) that supports a wide range of modern image formats, from traditional JPEG/PNG to newer types such as AVIF, HEIC, JPEG XL, and various RAW files. It is designed as a native portable application with fully static linking, distributed as a single executable with no separate installer, making it simple to run from any folder or removable drive. The viewer handles static images, animated formats (GIF, animated WebP/PNG/APNG/JXL/AVIF), and special “live” photo types such as iOS Live Photos (.livp) and Android Motion Photos/Micro Videos, although audio playback for live photos is not yet supported. It also supports a broad set of RAW formats from various camera manufacturers, allowing photographers to browse their libraries without converting to JPEG first.
    Downloads: 24 This Week
    Last Update:
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  • 16
    mrViewer

    mrViewer

    Flipbook, Image Viewer and Audio-Video Player

    This project is no longer active. It has been replaced by mrv2 at: www.sourceforge.net/p/mrv2 A video player, interactive image viewer, and flipbook for use in VFX, 3D computer graphics and professional illustration.
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    Downloads: 110 This Week
    Last Update:
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  • 17
    Free editor for PDF documents. Complete editing of PDF documents is possible with PDFedit. You can change raw pdf objects (for advanced users) or use many gui functions. Functionality can be easily extended using a scripting language (ECMAScript).
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    Downloads: 171 This Week
    Last Update:
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  • 18
    FreeWRL VRML/X3D browser
    FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support. Platforms supported: Linux and other Unix-style platforms; Mac OS/X; Windows. Support for mobile platforms (iOS, Android, QNX) is under development.
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    Downloads: 107 This Week
    Last Update:
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  • 19
    FreeBooth

    FreeBooth

    Free Photo Booth Software for a simple offline photo booth

    This is a simple photobooth application. You can take pictures with a camera(e.g. a dslr) and they will be shown in the application immediatly. You need no internet at your event location. Every user can save an Email-adress to his favourit picture and you can send all Emails via the sending wizard when you have internet again e.g. the next day. But it also supportes direct email sending if you have internet. To get the pictures into the booth software you have to use a tethering software like EOS Utility for Windows or gphoto2 or darktable for Linux
    Leader badge
    Downloads: 148 This Week
    Last Update:
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  • 20
    ImageMagick

    ImageMagick

    Display, convert, and edit raster image and vector image files

    ImageMagick® is a free and open-source software suite for displaying, converting, and editing raster image and vector image files. It can read and write over 200 image file formats, and can support a wide range of image manipulation operations, such as resizing, cropping, and color correction. ImageMagick is written in C and is available for a wide range of operating systems, including Linux, macOS, and Windows. It can be used as a standalone application, or as a library that can be integrated into other software programs. Overall, ImageMagick is a powerful and versatile software suite for displaying, converting, and editing image files. Its support for scripting and automation, along with its other features, make it a valuable tool for a wide range of image-related tasks.
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    Downloads: 398 This Week
    Last Update:
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  • 21
    Ginkgo CADx
    Ginkgo CADx is an extensible multi-platform Open Source Medical Imaging software which provides a complete DICOM Viewer solution with advanced capabilities.
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    Downloads: 52 This Week
    Last Update:
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  • 22
    Gallery

    Gallery

    Intuitive web based photo gallery

    A slick, intuitive web based photo gallery. Gallery is easy to install, configure and use. Gallery photo management includes automatic thumbnails, resizing, rotation, and more. Authenticated users and privileged albums make this great for communities
    Downloads: 37 This Week
    Last Update:
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  • 23
    Kokua viewer

    Kokua viewer

    Kokua is a V3 based open source metaverse viewer project.

    Kokua is an open source metaverse viewer project based on the Second Life Viewer source. Disclaimer: This software is not provided or supported by Linden Lab, the makers of Second Life. The goal of Kokua is to greatly improve the usability of the Viewer through community involvement, thoughtful design, modern development methods, and a pro-change atmosphere.
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    Downloads: 225 This Week
    Last Update:
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  • 24
    Tulip
    Tulip is an information visualization framework dedicated to the analysis and visualization of relational data. Tulip aims to provide the developer/user with a complete library/software, supporting the design of interactive information visualization
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    Downloads: 38 This Week
    Last Update:
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  • 25
    DiffImg

    DiffImg

    Simple image comparison tool

    DiffImg is a simple image comparison tool which take two images with the same size as input. Some statitics are computed and the positions where pixel differ are displayed as a color mask.
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    Downloads: 44 This Week
    Last Update:
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