AI Sidebar - Lensel: Ask Any Page Without Leaving It

AI on your sidebar. Highlight text to ask questions instantly with full context, or autofill inputs with smart suggestions.

Lensel is an AI Sidebar designed for people who spend their time reading, researching, coding, and working across the web. It lives directly in your browser, allowing you to interact with the page without switching tabs or copying content into another tool. You can highlight a piece of text and ask questions, get explanations, or break down complex ideas without interrupting your workflow. Use it with paragraphs, technical documentation, code snippets, research papers, and forum discussions. You can also use the current page as context. Ask about an article, documentation page, or long thread and continue with follow-up questions without manually pasting the same material into each prompt. Lensel stays accessible in the side panel while you work. Whether you are studying, debugging code, reading documentation, or writing content, you can keep the source and conversation in view. ⸻ What you can do with Lensel • Ask questions about content you find online. Explain concepts, define unfamiliar terms, and walk through complex ideas step by step. • Summarize long content. Turn an article, research paper, documentation page, or transcript into clear and readable notes using the text available on the page. • Write directly where you work. Draft emails, replies, comments, reports, or messages without leaving the page. Use Fill with Lensel in supported input fields and editors, then refine or undo the result. • Rewrite and improve text. Adjust tone, simplify writing, or make content more professional, concise, or clear. • Upload screenshots and images. Ask questions about an attachment while staying on the same webpage. Image attachments are available on eligible plans with compatible models. • Use page context. Bring the page you are on into the conversation so you can ask about what you are actually reading. Adjust the context limit in the extension settings. • Continue conversations from history. Return to previous questions and answers or build on a longer discussion in the side panel. • Choose how you connect. Select an available model and use Lensel access or your own supported API key, depending on your plan and settings. ⸻ Why this changes how you work Moving between a page and a separate chat often means copying passages and rebuilding the context for each question. Keeping the conversation beside the source lets you read an answer, check the original passage, and ask a follow-up in the same place. For writing, you can go from an idea to a draft in a supported field, then ask for a shorter version or a different tone. For reading, you can move between an overview and a detailed explanation as your questions develop. ⸻ Who Lensel is for • Students who need help understanding difficult material • Developers working through documentation or debugging code • Researchers reading long papers and reviewing key points • Writers drafting and refining content • Designers and product managers reviewing information and comparing ideas • Anyone who spends time learning or working online ⸻ What makes this different Lensel is built around page context. You can start with a highlighted passage, ask a broader question about the page, and continue the discussion beside the content. The same extension brings together reading, questions, and inline writing. Saved conversations let you revisit earlier work, and the settings let you choose your model and control whether highlight and fill controls appear. ⸻ Make every tab more powerful Break down complex topics, summarize dense content, and write responses while keeping the page in view. Open the side panel for a conversation or highlight text to start with the passage that caught your attention. Install Lensel and sign in to get started. Visit https://www.lensel.ai/ for plans and support.