Monica

An all-in-one AI assistant browser extension integrating search, reading, writing, and translation — one of the most widely used AI browser extensions globally. Monica operates as a browser extension, allowing users to invoke AI capabilities on any webpage without switching applications. Core features include sidebar AI chat (talk to AI on any webpage), selected text explanation, translation, summarization, and rewriting, YouTube video summarization, PDF and webpage content analysis, AI writing assistance (email replies, comment generation, etc.), image generation, and multi-model support. Suitable for information lookup during daily web browsing, reading and translating foreign-language webpages, email composition and replies, social media content creation, online learning and research, and more. Particularly efficient when reading foreign-language materials and long articles. Ideal for all frequent browser users, especially those who regularly need to read foreign-language content, professionals needing AI assistance for daily office tasks, researchers, and students. Ubiquitous browser coverage makes it one of the most conveniently accessible AI tools. Integrating multiple functions into a single extension reduces the friction of switching between tools, making it the most efficient daily AI companion.