Best Sider alternatives (2026)
Looking for an alternative to Sider? Here are the 2 best options, ranked by community votes and compared on price and features. Sider is your ai sidebar for smarter browsing, writing, and research., so these tools solve similar problems.
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Your all-in-one AI assistant for smarter browsing and productivity.
Monica is a freemium AI-powered browser extension that brings together ChatGPT, Claude, and other leading AI models into a single, unified sidebar accessible directly from any webpage. Designed for knowledge workers, students, researchers, and everyday users who want to supercharge their browsing experience, Monica makes it effortless to summarize articles, translate text, draft emails, explain complex topics, and interact with AI without switching between tabs or apps. What sets Monica apart is its deep integration with your browser workflow — you can highlight any text on a webpage and instantly get explanations, rewrites, or translations in context, all without leaving the page you are on. Monica also supports AI-powered image generation, PDF reading and Q&A, and a conversational chat interface that retains context across your session. Whether you are a professional trying to speed up research, a content creator looking for writing assistance, or a student needing help understanding dense material, Monica serves as an always-available AI copilot that dramatically reduces friction in everyday digital tasks. Its cross-browser compatibility and support for multiple AI models give users flexibility that single-model tools cannot match, making it a genuinely versatile addition to any productivity toolkit.
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Automate browser tasks and chat with any webpage using AI.
HARPA AI is a freemium AI-powered Chrome browser extension that combines a ChatGPT-style assistant with web automation capabilities, letting users interact with any webpage, automate repetitive browser tasks, and extract data without writing code. It is designed for professionals, marketers, researchers, and productivity enthusiasts who want to supercharge their browsing experience by connecting powerful large language models directly to the content they encounter online. What sets HARPA AI apart is its hybrid approach: it not only lets you ask questions about the page you are viewing, summarize articles, or rewrite content, but also enables you to build no-code automation workflows that monitor prices, track website changes, fill forms, and scrape data on a schedule. The extension integrates with multiple AI backends including ChatGPT, Claude, Gemini, and local models, giving users flexibility in choosing the intelligence layer that powers their tasks. Whether you are a content creator looking to draft social posts from any article, a sales professional researching leads, or a developer prototyping automation flows without spinning up infrastructure, HARPA AI provides a versatile AI co-pilot that lives right inside your browser and works across virtually every website you visit.
See more in AI Browser Extensions.