Sider

Sider is a browser extension and cross-platform app that helps you work with web content faster. It brings multiple AI models into one interface—GPT-4o, Claude AI, Gemini, and Llama—to support reading, writing, and everyday text tasks online.

What you can do with Sider

• Chat with a universal assistant and switch between supported AI models
• Read and understand web pages with an AI reader
• Write, rewrite, and improve text with an AI writer
• Use ChatPDF to interact with PDF documents
• Edit images: remove or replace backgrounds, and generate images from text
• Translate between many languages
• Summarize long texts into short takeaways
• Check grammar and style, and run plagiarism checks

Availability and setup

Sider works as a browser extension and as mobile/desktop apps:

• Browser extensions: Safari, Chrome, Edge
• Mobile apps: iOS, Android
• Desktop apps: macOS, Windows

To get started, install the extension or app from the official website, sign in, choose your preferred AI models and features, then select text on a web page to get help in context. Sider supports Russian-language prompts and is available for free.