Sider
AI sidekick for reading, writing, and chatting on any webpage
Introduction
Sider is an AI sidekick that starts as a Chrome and Edge extension and helps you read and write on any webpage. It can chat about links, images, PDFs, and YouTube videos, and it includes writing, translation, and summary tools. Apps for iOS, Android, macOS, and Windows are also available.
- Added on
- Nov 2, 2026
- Website
- sider.ai
- Pricing model
- Freemium
Product information
What is Sider?
Sider is an AI assistant that adds chat, reading, and writing help to your browsing workflow.
How to use Sider?
Install the Chrome or Edge extension, then select any text to explain, translate, summarize, or rewrite it with the sidebar.
Core features of Sider
- ChatGPT sidebar
- AI reader and writer
- ChatPDF integration
- Image tools
- Group AI chat
Use cases of Sider
- 1Reading and writing on any webpage
- 2Summarizing YouTube videos
- 3Translating text
- 4Checking grammar and improving writing
Frequently asked questions about Sider
What is Sider?+
Sider is an AI sidekick that helps you read, write, and chat about content on any webpage.
Which AI models does Sider support?+
The product information lists ChatGPT, Claude, Gemini, Bard, and New Bing among the supported models.
What platforms does Sider run on?+
Sider is available as a Chrome and Edge extension, and as apps for iOS, Android, macOS, and Windows.
Which category is Sider in?+
Sider is listed under AI Assistants, AI Writing Assistant.

