ifuchen113/glassreader

GlassReader is a free, open source Mac application for reading files that already sit on your own computer. It handles comics, PDFs, plain images, and compressed archive files, all through a clean native window built with Apple's own SwiftUI and AppKit tools rather than a wrapped web page. On the file side it can open individual files, whole folders, or drag and drop items straight into the window. It reads ZIP, CBZ, RAR, and 7Z archives, including ones protected with a password, along with PDF documents and common image formats such as JPG, PNG, WebP, GIF, BMP, TIFF, and HEIC. For actually reading, it offers single page and double page layouts, standard left to right order or manga style right to left order, and five ways to fit an image on screen including fit to width, original size, and a smart fit option. You can keep several files open in tabs, and the app remembers which tabs were open, how far you had read into each file, and which page mode and direction you last used for it, so reopening a file picks up where you left off. Other conveniences include reading history with a private browsing mode you can turn on to avoid logging anything, a favorites list toggled with a star button, thumbnail previews for jumping straight to a page, mouse and keyboard and scroll wheel navigation, a slideshow with automatic page turning, and both a standard fullscreen mode and an immersive fullscreen mode with a floating toolbar and progress bar. The interface is translated into Chinese, English, Japanese, Korean, Russian, French, German, and Spanish, and the app can be registered with macOS as an option in the system's Open With menu for supported file types. No account or sign in is required. All favorites, history, progress, and preferences stay stored locally on your Mac. Archive passwords are kept only for the length of the current app session so a reopened archive does not ask again, and the developer states passwords are not intentionally sent anywhere. It requires macOS 14.0 or later and an Apple Silicon Mac, and is downloaded as a ready to run app from the project's Releases page. It is licensed under the GNU General Public License Version 3.0.