Sider

Sider is an AI-powered browser assistant designed to bring chat, research, writing, translation, automation, coding, and creative tools directly into the browser. Its current positioning has expanded from a traditional AI sidebar into a broader browser AI platform built around Chat, Claw, Code, and Create.

Sider Chat lets users work with leading AI models such as GPT, Claude, Gemini, and Grok while viewing webpages, PDFs, images, and other content. It can summarize long articles, explain concepts, translate webpages and documents, and answer follow-up questions about the material being viewed.

A particularly useful part of Sider is its browser-aware workflow. Instead of copying information from a webpage into a separate chatbot, users can ask Sider to work with the content directly on the page. The platform also supports YouTube summarization, OCR, webpage summaries, grammar checking, and writing assistance.

Sider’s newer Claw feature moves beyond simple assistance into browser automation. It can perform tasks across real websites, including researching multiple sites, comparing prices, filling forms, and triaging Gmail. Sider describes Claw as an agent that can use logged-in browser sessions to complete multi-step tasks.

Sider Code takes a different approach by allowing users to customize webpages using natural-language instructions. Users can tell Sider what they want changed on a website, and the tool can modify how the page looks or works and remember those changes for future visits.

The Create section covers AI-generated creative work, including images, videos, slides, and documents. Current Sider materials list models such as GPT Image 2, Nano Banana Pro, and Seedance 1.5 Pro for creative generation.

Sider also has a broader research and knowledge environment through Wisebase. Users can collect websites, PDFs, presentations, documents, and other files, then use AI to analyze the collected material, save insights, and generate drafts or FAQs.

For document-heavy workflows, Sider provides ChatPDF, allowing users to summarize, translate, and ask questions about PDF files. It also provides translation for webpages, PDFs, and images. Sider states that its translation tools support more than 50 languages.

Sider’s feature set also includes data analysis, AI writing, audio-to-text, AI read-aloud, OCR, image generation and editing, and YouTube summarization. This makes the platform useful across research, content creation, education, and general productivity rather than limiting it to one AI function.

The service is available across Chrome, Edge, Windows, macOS, iOS, and Android, with one account supporting multiple platforms.

Sider currently reports 10M+ active users and 100K+ five-star ratings, and its website lists Chrome recognition including Editors’ Picks 2026 and Favorites of 2025. These are figures reported by Sider itself rather than independent verification.

Pricing

Sider uses a freemium subscription model based on credits. Its current pricing page says that all plans include the platform’s features, while higher plans provide more credits and a stronger cloud computer.

Sider provides a free tier, while paid subscriptions provide larger credit allowances and greater access to its advanced models and agentic features. Because Sider’s pricing page currently presents plan benefits primarily through credits and does not expose all numerical prices in the accessible page text, the safest listing is to describe the pricing as Free + paid subscription plans, rather than inventing a current price.

Review

Sider is particularly strong for people who spend a lot of time working inside a web browser. Its biggest advantage is the combination of contextual AI and browser functionality: users can read, research, write, translate, analyze, and automate without constantly moving between separate applications.

Its move into Claw and Code also makes Sider more capable than a conventional browser sidebar. Claw handles multi-step browser tasks, while Code lets users customize webpages through natural language.

The breadth of features is both a strength and a possible drawback. Users who only need a basic chatbot may find Sider’s large collection of tools unnecessary. In addition, its credit-based system means heavy users need to pay attention to consumption.

Best suited for: students, researchers, marketers, writers, professionals, developers, and users who want AI assistance directly within their browser.