Strongest fit
Who it is built for
- Browser users who need page-aware AI assistance
- People comparing responses from multiple AI models
- Users automating research and routine browser tasks
Sider
Browser assistant for chat, automation, and webpage customization
Sider is a browser-focused AI assistant available as an extension and across desktop and mobile platforms. It brings multiple AI models into a side panel for page-aware chat, summaries, translation, and document analysis, while also offering browser automation and natural-language webpage customization.
SISiderProduct screenshot pending
- Best for
- Browser users who need page-aware AI assistance
- Pricing signal
- Not publicly listed
- Primary category
- Browser extensions
- Last verified
- Jul 30, 2026
The decision
Should Sider make your shortlist?
Start with the job, the team, and the constraints. Product fit becomes much clearer when those three line up.
Practical use cases
Jobs it can take on
- Summarize and ask follow-up questions about a webpage, PDF, or video
- Translate webpages, PDFs, and images in the browser
- Research, compare, and organize information across websites
Before you choose
Know the tradeoffs
- The services are not designed for use where HIPAA or FISMA compliance is required.
- Generated content is informational and users are responsible for verifying its accuracy and suitability.
Inside the product
What you can actually do with it.
The core product capabilities, grouped around the work they enable.
Sider Chat
The side panel lets users chat with GPT, Claude, Gemini, Grok, DeepSeek, and other models about the content they are viewing.
Sider Claw
The browser agent can research, compare, extract, and organize information across websites.
Sider Code
Users can describe visual or functional changes to a webpage and have Sider update the page in real time.
Typical workflow
Install Sider on a supported platform and open its side panel while viewing content in the browser. Choose Chat to analyze the current page, Claw to complete browser tasks, or Code to modify a webpage through natural-language instructions. Results remain connected to the active browser context.
Plans and official links
Plans and accessNot publicly listed.
See the entry price, free access options, company details, and direct vendor destinations in one place.
Starting pointNot publicly listed
Free plan
See plans- Provider
- Vidline Inc.
- Based in
- US
Official destinations
Choosing for a real workflow?
Make the tool work with the rest of your operation.
We map the workflow, connect existing systems, choose what to buy, and build what is missing.