Anthracite is a browser extension that applies a modern dark mode theme across the web. Designed for users seeking a cohesive and readable dark browsing experience, it offers a restrained and consistent visual style that avoids the blunt inversion common in some other dark mode tools. The extension provides calm surfaces and a modern palette, aiming to make web pages feel intentional and clear rather than overprocessed.
The tool features eight built-in themes, including options like Classic, OLED, Graphite, and Obsidian, and allows users to create and edit custom palettes. Anthracite emphasizes local customization, with all settings stored on the device, ensuring users' preferences remain private. The extension is described as lightweight and transparent in its operation, with zero telemetry reported. Playful extras are available for those who want additional customization, but the overall design philosophy is to offer useful features without unnecessary complexity.
Anthracite is available for multiple browsers, including Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari, with installation possible through each browser’s extension store. For users who prefer manual installation, direct downloads of packaged builds are also offered. 0 license. Development and copyright are attributed to psyopgirl, and users are invited to support ongoing maintenance and development through donations.
This extension is intended for individuals who want a darker, more cohesive web experience that prioritizes readability, polish, and user trust.
In the Browser DevTools & extensions space, Anthracite takes a focused approach. It focuses on applying a consistent dark mode theme across all websites and browsers with privacy and customization. Anthracite is an open-source project aimed at web users seeking dark mode across browsers. The project is open source (Open Source). It runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Behind Anthracite is psyopgirl, and the product first shipped in 2026. Across PulseGate's embedding index, Anthracite has few near neighbours, marking it as relatively distinct. Among its 6 catalogued features are universal dark mode, multi-browser support, and local settings.
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