Sider AI
AI sidebar for your browser — chat, summarize, translate, and generate right on any webpage
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sider.aiAbout Sider AI
Sider AI is a browser extension and AI sidebar that adds ChatGPT, Claude, Gemini, and other AI models directly into your browsing experience. It lets you highlight text on any webpage and instantly get explanations, translations, summaries, or ask questions — without switching tabs. Sider also offers a full chat interface, PDF reader, AI search, image generation, and a writing assistant that works inside Gmail, Google Docs, and other web apps. It's one of the most popular AI browser extensions with 4M+ users.
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Key Features
Sider AI Pros & Cons
✅ Pros
- +Access to ALL major AI models in one sidebar ($5/mo)
- +Highlight-to-explain is genuinely faster than copying to ChatGPT
- +YouTube summarization is a standout feature
- +Writing assistant in Gmail is seamlessly integrated
- +Free tier is usable for casual research
⚠️ Cons
- −Can slow down browser slightly when active
- −Free tier query limits hit quickly for heavy users
- −Some users prefer single-model focus (just ChatGPT) over multi-model
- −UI can feel cluttered with so many features
Who Is Sider AI Best For?
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