ParaPara is described as 'Image viewer created with lightweight and high-speed operation in mind' and is an app. There are four alternatives to ParaPara for a variety of platforms, including Linux, Flathub, Mac, Windows and GNOME apps. The best ParaPara alternative is nomacs, which is both free and Open Source. Other great apps like ParaPara are qView, gThumb and Eye of GNOME.
nomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images.
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Fast and lightweight Qt-based image viewer with support for Windows, macOS, and Linux. Features include multiple format support, customizable interface, GIF playback, high-resolution display compatibility, and efficient navigation through keyboard shortcuts.
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gThumb is an image viewer and browser for the GNOME Desktop. It also includes an importer tool for transferring photos from cameras.
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Eye of GNOME is the official image viewer for the GNOME Desktop environment. With it, you can view single image files, as well as large image collections. The Eye of GNOME supports a variety of image file formats.
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