Sider
Sider offers an all-in-one AI assistant for your browser, enabling chat, writing, reading, translation, and research with top models like GPT-5 and Claude 4.
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Shop at SiderAbout Sider AI
Sider is a leading-edge AI assistant designed to integrate directly into your web browser, offering an unparalleled suite of tools to enhance your online experience. Developed to be your ultimate digital sidekick, Sider brings the power of advanced artificial intelligence, including access to top models like GPT-5, Claude 4, Gemini 2.5, and Grok 4, right to your desktop. It's built for efficiency, helping users to chat, write, read, translate, and research with remarkable ease and speed.
Key Features & Benefits
Comprehensive AI Chat & Content Creation
With Sider, you can engage with multiple sophisticated AI models from a single, convenient side panel. This allows for seamless switching between models, enabling you to compare answers and maintain context effortlessly. Beyond chat, Sider empowers you to become a content creator, assisting in the generation of AI presentations, websites, and even images, making complex creative tasks accessible to everyone. Whether you're drafting a report or designing a visual, Sider is your go-to AI tool.
Smart Summarisation, Translation & Research Tools
Boost your productivity with Sider's intelligent information processing capabilities. Instantly summarise lengthy webpages or YouTube videos to get the core message in seconds. The 'Explain highlighted text' feature provides immediate clarity on complex passages without disrupting your flow. For global users, Sider offers robust translation services in over 50 languages, complete with a bilingual view that preserves original formatting. Dive deeper into documents and files with advanced reading tools, extracting data and clarifying logic fast.
Your Personalised AI Knowledge Base: Wisebase
A standout feature of Sider is Wisebase, your dedicated AI knowledge base. This powerful tool allows you to store and organise all your AI chats, clips, sources, and reports in a searchable library that grows with your browsing. Query across saved PDFs, webpages, and notes, with answers intelligently grounded in your original sources. Wisebase helps you capture decisions, action items, and even convert documents into presentation-ready slides, ensuring all your valuable insights are kept in one accessible place.
Shipping & Returns
As a digital browser extension, Sider provides instant access upon installation. There are no physical delivery requirements.
Returns Policy
As a free-to-try browser extension, Sider does not have a traditional returns policy. Users can uninstall the extension at any time.
Company Information
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Sustainability
Polar is committed to sustainability, focusing on environmental responsibility, timeless design, responsible sourcing, long-lasting products, recycling, and ethical manufacturing practices.
Frequently Asked Questions
Does Sider support synchronisation of chat history across multiple devices?
Yes, Sider currently offers automatic synchronisation of chat history across multiple devices, allowing you to continue your conversations seamlessly.
How do I use web access features in Sider chats?
Sider allows you to use web access in chats to provide more current and relevant information. Specific instructions on enabling and utilising this feature can typically be found in the 'Feature Guides' section of the Sider Help Centre.
Can I use Sider's AI models to generate images?
Yes, Sider includes a 'painter' feature that enables AI models to generate images directly within your chats. Look for options related to image generation or the 'painter' tool in the chat interface.
What file formats are supported for uploading in the Sider chat interface?
Sider supports various file formats for uploading in the chat interface to facilitate deep reading and analysis. While specific formats are not listed here, common document types like PDFs are generally supported. Please refer to the Sider Help Centre for a comprehensive list.
How do I update the Sider extension to the newest version?
Sider extensions typically update automatically. However, if you need to manually update, you can usually do so through your browser's extension management page. Instructions are available in the Sider Help Centre.
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Be the first to write a reviewSider Quick Facts
| Standard Delivery | As a digital browser extension, Sider provides instant access upon installation. There are no physical delivery requirements. |
| Free Delivery | Not available |
| Click & Collect | Not available |
| Returns Policy | As a free-to-try browser extension, Sider does not have a traditional returns policy. Users can uninstall the extension at any time. |
| Student Discount | Not available |
| NHS Discount | Not available |
| Military Discount | Not available |
| International Shipping | Not available |
| Payment Methods | Visa, Mastercard |
Last verified: February 2026
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Contact Information
Customer Service Email
contact@sider.aiCustomer Service Hours
Please allow 3-7 business days for a response due to high email volume.
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