Sider

Sider is a multi-functional AI assistant that lives as a browser sidebar, helping you read, write, chat, code, and create content more efficiently. It bundles popular language models like GPT-4o, Claude, Gemini, GPT-5.3-Codex, and o1, offering access to cutting-edge AI in one interface. Designed for anyone who spends a lot of time in the browser, Sider provides tools such as AI chat, article summarization, writing assistance, image generation, PDF interaction, and code explanation. It also includes specialized features like Wisebase (research knowledge base), Deep Research, and Scholar Research for in-depth work. Sider operates primarily as a Chrome extension with a sidebar that appears on any website. You can highlight text to summarize, rewrite, translate, or explain it contextually. It also has its own chat interface for free-form conversations and can handle multiple file types (PDF, Word, Excel, images). What sets Sider apart is its all-in-one nature: instead of juggling multiple AI tools, you get a single sidebar with a wide array of capabilities. It also offers integration with popular platforms like YouTube (for video summarization), Google Search, and social media. For power users, Sider provides a customizable context menu and keyboard shortcuts. Sider is practical for students, researchers, writers, developers, and professionals who need AI assistance without leaving their browser. Its freemium model gives daily free queries, with affordable paid plans for higher usage.