Obsno: Your AI Sidebar for Every Webpage

Introduction

Obsno is a Chrome extension that acts as an AI assistant right next to every webpage you visit. It allows users to chat, summarize text, write better content, and research topics without ever leaving their current browser tab. Powered by Anthropic's Claude AI, Obsno integrates directly into the browser interface to offer a smooth experience for students, professionals, developers, and writers.

Benefits

Obsno provides several key advantages that make browsing and working more efficient. First, it automatically reads the content of the page you are viewing. Users can ask it to summarize articles or explain complex topics without needing to copy and paste text manually. Second, the tool allows users to highlight any text on a website and instantly trigger actions like explaining, summarizing, translating, or fixing grammar. Third, it serves as a powerful writing assistant that integrates directly into text fields across the web to help improve quality, adjust tone, and correct errors. Finally, users can upload images, PDFs, or code files to chat with them, get summaries, or extract specific data like tables.

Use Cases

Obsno is designed to help a wide range of people in their daily tasks. Researchers and students can use it to summarize papers, explain difficult jargon, and extract key points from sources without switching tabs. Professionals and managers can draft email replies, improve reports, find action items from meeting notes, and research competitors quickly. Developers can explain code snippets, debug issues on sites like Stack Overflow, understand documentation, and get clear code explanations. Writers and creators can enhance emails, social media posts, and articles by adjusting the tone, fixing grammar, and rewriting content instantly.

Pricing

Obsno offers a flexible pricing structure with a generous free tier. The Free Plan costs $0 per month and includes 10 AI messages per day with full access to page context, summarization, text selection actions, the writing assistant, PDF uploads, and chat history. The Pro Plan costs $12.99 per month and provides 100 AI messages per day. This plan adds features like full prompt library access, follow-up suggestions, and priority support. The Ultra Plan costs $24.99 per month and offers 500 AI messages per day, which is ideal for power users who need essentially unlimited use. All plans are billed monthly and can be cancelled anytime.

Vibes

Users appreciate that Obsno stays within the browser, unlike other tools that require manual copy-pasting. The ability to select text and get instant actions is a major highlight for many. The writing assistant feature is particularly popular for those who need to polish emails or social media posts on the fly. The fact that it uses the Claude AI model is also seen as a plus because of its known accuracy and nuance. The free tier is considered very generous, allowing most users to test the tool thoroughly before considering a paid upgrade.

Additional Information

Obsno is built on top of Anthropic's Claude AI model. The company prioritizes privacy by stating that it only reads page content when the user actively sends a message. It does not track browsing history or store page content permanently, and it does not sell user data. The extension works on Chrome, Microsoft Edge, Brave, and Arc browsers, as these are all Chromium-based. Firefox is not currently supported. The tool can be installed from the Web Store without requiring a credit card for the initial setup.