Sider AI

AI Chat & Assistants

Browser AI sidebar extension that provides instant access to ChatGPT, Claude, and Gemini from any webpage for summarizing, translating, writing, and chatting.

4.2
WebiOSAndroidmacOSWindows

What is Sider AI?

Sider AI is a powerful browser extension that adds an AI-powered sidebar to Chrome, Edge, and other Chromium-based browsers. It provides seamless access to multiple leading AI models — including ChatGPT (GPT-4o), Claude, and Gemini — directly from any webpage without switching tabs. With Sider, you can highlight text on any page to instantly summarize, translate, rewrite, or explain it. The extension also offers a built-in chat interface, AI-powered reading assistant, and writing tools. Key features include webpage summarization, YouTube video summarization, email drafting, cross-language translation, and code explanation. Sider is particularly useful for researchers, content creators, and professionals who work across multiple websites and need quick AI assistance without disrupting their workflow. It has been downloaded over 4 million times and consistently ranks among the top AI browser extensions.

Sider AI screenshot

Pricing Plans

1Free (30 queries/day)
2Basic $8.99/mo
3Pro $14.99/mo
4Unlimited $29.99/mo

Key Features

Multi-model AI sidebar (ChatGPT, Claude, Gemini)
Text selection AI tools (summarize, translate, rewrite, explain)
Webpage and YouTube video summarization
AI-powered email and writing assistant
Built-in chat interface with conversation history
Custom prompt templates and shortcuts

Pros & Cons

Pros

  • Access multiple AI models (ChatGPT, Claude, Gemini) in one extension
  • Works on any webpage without leaving the current tab
  • Powerful text selection tools for instant summarize/translate/rewrite
  • YouTube video summarization feature saves time
  • Cross-browser support (Chrome, Edge, Opera, Brave)

Cons

  • Free tier limited to 30 queries per day
  • Higher-tier plans can be expensive for individual users
  • Performance can slow down on resource-heavy web pages
  • Desktop app features are more limited than the browser extension

Frequently Asked Questions

Q. Which AI models does Sider support?

A. Sider provides access to multiple AI models including OpenAI's GPT-4o, Anthropic's Claude, Google's Gemini, and others. The available models depend on your subscription plan, with higher-tier plans offering access to more advanced models.

Q. Does Sider work with all websites?

A. Sider works on virtually all websites as a browser extension. You can use it to summarize articles, translate content, chat about page content, and more. Some restricted corporate or banking sites may limit extension functionality for security reasons.

Q. Is my data private when using Sider?

A. Sider processes queries through the respective AI model providers (OpenAI, Anthropic, Google). Your conversation data is handled according to each provider's privacy policy. Sider itself states it does not store or sell user data, but queries do pass through third-party AI APIs.

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