AI Tool

Sider pricing, features, company info, and alternatives

A factual product page for Sider, the browser-side AI assistant from Vidline Inc.

Last updated April 2026 · Pricing and features verified against official documentation

Product Snapshot

Sider is a browser-focused AI assistant from Vidline Inc. It centers on a sidebar workflow for reading, writing, translating, and saving research while you browse, with companion apps available on other platforms.

What You Can Do With It

• Chat with multiple AI models from a browser sidebar while keeping the current page in view.
• Summarize webpages, YouTube videos, PDFs, and other files, then save the result to Wisebase.
• Translate pages or selected text, rewrite copy, and use OCR and image tools from the sidebar and context menu.
• Store chats, clips, sources, and reports in Wisebase so you can search and reuse them later.

Why It Stands Out

Sider combines browser-side chat, page reading tools, translation, and a knowledge base into one account. The product is built around active browsing workflows rather than a separate chat-only app.

It also exposes a broader set of browsing helpers than a simple summarizer: users can ask questions about pages, save clipped material, and turn saved material into follow-up work inside Wisebase.

Tradeoffs To Know

• The public pricing surface is split across the website and App Store listings, and the help center says some older Starter, Pro, and Unlimited plans are legacy and closed to new customers.
• The privacy policy says chats, registration data, and uploaded files can be stored on Sider servers in Amazon US data centers, and chat data can be shared with the AI providers you choose.
• The help center uses a credit system for advanced features, so heavier use depends on plan limits rather than a single flat subscription.