Sider lives beside the websites you already use — from reading along with you to finishing whole tasks for you.
One sidebar. Three ways to work with the web.
Summarize, explain, translate, and ask follow-up questions about the page in front of you.
Explore Sider Chat →Research, compare, extract, and organize information across the websites you already use.
Explore Sider Claw →Describe what you want changed. Sider Code updates the page and remembers it for future visits.
Explore Sider Code →Bring leading AI models into your current page. Sider Chat helps you summarize long videos, translate foreign languages, explain complex ideas, and ask follow-up questions until the content makes sense.
Explore Sider ChatGive Sider Claw a task and watch it work across real websites, use your logged-in sessions, and turn multi-step browser work into usable results.
Explore Sider ClawTell Sider Code what you want changed. It updates the page in real time and remembers your customization for future visits.
Explore Sider CodeUnderstand"Sider 非常好用，网页翻译功能更是一绝。当时用的插件有 6–7 个，现在唯独留下了这一个。"
Act"I asked Claw to compare parts across three stores and drop everything into a sheet. It did the afternoon's work before lunch."
Customize"Our internal dashboard was unreadable. I told Sider Code what to fix, and now it loads that way every morning."
Chat helps you understand the page you're reading — summarize, explain, translate, ask follow-ups. Claw is an agent that finishes multi-step work across real websites for you. Code customizes how any website looks and works, using plain words. All three live in one sidebar.
Sider works in Chrome and Edge. Install once and Chat, Claw, and Code are all available from the same sidebar.
Claw works inside your own browser, so it can use sessions you're already signed in to — that's what lets it finish real tasks. It only acts on tasks you give it, you can watch every step it takes, and you stay in control of your accounts at all times.
Yes — Sider is free to install and use, with daily free credits. Paid plans add higher limits and access to more advanced models.
Sider works with leading models — including GPT, Claude, Gemini, and DeepSeek — plus Sider's own Fusion mode that picks the right model for the task. You can switch models anytime from the sidebar.
Yes. Chat and Code work on the page you have open — any article, video, doc, or web app. Claw can navigate across multiple websites and tabs to finish a task end to end.
Always. Code's changes are reversible — toggle a customization off, edit it, or remove it entirely, and the page returns to normal. Saved changes only apply for you, in your browser.
Understand it, automate it, reshape it — Sider works where you already do.
Add to Chrome