Arcmark is a native macOS bookmark manager inspired by the Arc Browser, designed to attach to any browser window as a sidebar. It provides a unified interface for managing bookmarks across Chrome, Safari, Firefox, Brave, and Arc itself. The core value lies in workspace-based organization, where users can create separate collections with custom colors for different contexts like work, personal, or research. Unlike browser-native bookmark systems, Arcmark keeps all data local in a single JSON file on the user's Mac, ensuring privacy and offline availability. It is free and open source under the MIT license, built with Swift and AppKit for native performance. This tool targets Mac users who want a consistent bookmarking experience regardless of the browser they are using, eliminating the silos created by browser-specific bookmarks.
The primary problem Arcmark solves is the fragmentation of bookmarks across multiple browsers. Many users employ different browsers for work, personal tasks, or development, and each has its own bookmark manager. This leads to confusion and wasted time when searching for a specific link. Arcmark addresses this by providing a single sidebar that works with all browsers, making bookmarks accessible from anywhere. Additionally, the hierarchical organization with workspaces and nested folders offers better categorization than flat lists. The local-first approach also eliminates the privacy risks of cloud-based bookmark syncing, as data never leaves the user's machine. For users who value control and simplicity, Arcmark turns bookmark management into a streamlined, stress-free experience.
Workspace organization is a standout feature of Arcmark. Users can create multiple workspaces, each assigned a custom color for instant visual recognition. Within a workspace, nested folders can be created and rearranged with simple drag-and-drop, allowing a logical hierarchy that mirrors real-world projects. Inline editing enables quick renaming of folders and links directly in the list without opening modal dialogs. The auto-favicon and title feature automatically fetches website icons and page titles when a bookmark is added, saving manual data entry. This combination of visual cues and efficient interaction reduces cognitive load and speeds up the process of building and maintaining a library of links. Workspaces can be reordered, and folders can be moved between workspaces using drag-and-drop, offering flexible organization.
Search and filter capabilities make Arcmark powerful for large collections. The search function scans bookmark titles, URLs, and folder names, providing real-time results as the user types. Results can be filtered by workspace or specific folder, narrowing the scope to a relevant context. This means a researcher with thousands of bookmarks can instantly find a specific paper without scrolling. Additionally, Arcmark supports importing bookmarks from major browsers including Chrome, Safari, Firefox, and Arc. The import preserves folder structures and handles nested hierarchies, making migration seamless. For users switching from browser-native systems, this feature eliminates the need to manually recreate their organization. The combination of robust search and easy import ensures that users can maintain a comprehensive, easily navigable bookmark collection.
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Arcmark offers always-on-top mode, which pins the app window above all other applications. This is particularly useful during tasks that require constant reference to a set of bookmarks, such as coding, writing, or research. The sidebar attachment system works with any browser, appearing on the left or right side of the window. Users can toggle the sidebar via a keyboard shortcut or menu bar icon, making it quick to access. The always-on-top mode ensures that the bookmark list remains visible even when using full-screen applications, eliminating the need to switch windows. These capabilities transform Arcmark from a static storage tool into an active productivity aid, enabling users to keep their curated resources always at hand.
Arcmark's workflow is centered around local-first data management. All bookmarks, workspaces, and folders are stored in a single JSON file on the user's Mac. This file is automatically saved as changes are made, ensuring no data loss. The app runs as a standalone macOS application, using Swift and AppKit for native look and feel. Users can add bookmarks by dragging a URL from a browser's address bar into the Arcmark sidebar, or by using the inline add feature. The interface is designed for speed: right-click context menus, keyboard shortcuts, and drag-and-drop are all supported. There is no need for an internet connection, accounts, or cloud sync—everything operates offline. This simplicity appeals to users who prioritize control and privacy over convenience features that rely on cloud services.
Concrete scenarios showcase Arcmark's utility. A freelance designer creates separate workspaces for each client, each with custom colors and nested folders for assets, references, and color palettes. The always-on-top mode keeps the client's bookmark collection visible while working in design software. A researcher uses nested folders and search to manage links to academic papers, filtering by workspace for different projects. A developer maintains a workspace for API documentation and another for code snippet libraries, accessible from any browser via the sidebar. A marketer imports existing bookmarks from Chrome and Safari into one unified sidebar, then uses always-on-top mode to reference competitor sites while drafting reports. A student creates workspaces for each course, dropping lecture notes and supplementary links into folders. In each case, the local-first storage guarantees that bookmarks are never lost or mined.
Arcmark is built exclusively for macOS, using Swift and AppKit for native performance. It is free and open source under the MIT license, available for download from GitHub. The app targets Mac users who work with multiple browsers, including Chrome, Safari, Firefox, Brave, and Arc. Specific roles include designers, researchers, developers, marketers, and students—anyone who accumulates a large number of bookmarks across different contexts. The tech stack ensures smooth integration with macOS features like menu bar, window management, and keyboard shortcuts. There are no premium tiers or subscriptions; the app is completely free. Its open-source nature invites community contributions, ensuring continuous improvement and customization. Arcmark offers a simple, powerful, and private solution for managing bookmarks across all browsers, with workspace organization and local-first storage as its core strengths.
Arcmark is designed for Mac users who work with multiple browsers such as Chrome, Safari, Firefox, Brave, and Arc. It is ideal for professionals who manage large collections of bookmarks across different contexts, including freelance designers, researchers, developers, marketers, and students. The app is also suitable for privacy-conscious users who prefer local data storage over cloud-based solutions. Additionally, open-source enthusiasts and developers who want to customize their bookmark manager will find value in Arcmark's MIT-licensed codebase built with Swift and AppKit.