Lensel: Sidebar AI

AI that stays with you on every page. Highlight text to ask questions instantly with full context.

Lensel is an on-page AI companion built for people who read, research, code, or work across the web every day. Instead of switching tabs or copying text into another chatbot, Lensel stays in your browser sidebar and works directly with the page you are looking at. Highlight anything you want to understand better, whether it is a paragraph, a tricky sentence, a block of code, a research excerpt, a forum post, or text inside a screenshot. Lensel reads it and gives you instant help right where you need it. ✨ Lensel understands the page you are on. It can read the entire article or document to give grounded, context-aware answers, which means you never have to paste extra information or re-explain what you are viewing. If you are working through a long tutorial, a dense research paper, an API reference, or a confusing support thread, Lensel can summarize it, explain key ideas, outline the structure, or make the content easier to work with. 📚 The sidebar stays available at all times with a simple click. You can keep your focus on a single tab while Lensel adapts to whatever task you are doing. The goal is convenience. You stay in your workflow and Lensel becomes the helper that meets you on the page. Here are some of the most common things Lensel can help with: • Ask questions about any text you find online. Lensel can explain ideas, define terms, break concepts into steps, fix unclear writing, or translate text into another language. • Summarize long articles, papers, documentation pages, YouTube transcripts, or PDF manuals into short, readable notes. 📝 • Draft writing directly in the sidebar, including replies, emails, comments, bug reports, job application answers, or longer messages for work or school. • Rewrite text to match your preferred tone, whether you want it to sound simpler, more formal, more friendly, or more direct. • Upload screenshots, pictures, PDFs, or small files and ask questions about them while still staying on the same webpage. • Use full-page context so your answers are accurate and aligned with what you are actually reading. • Save session history, which makes it easy to return to previous questions or continue longer thought processes. • Choose from multiple LLM providers depending on your plan, which lets you balance speed, cost, quality, and reasoning depth. 🤖 Lensel is especially helpful for students, developers, designers, researchers, product managers, writers, and anyone who spends time reading or learning on the internet. If your daily routine involves absorbing information or creating written work, Lensel becomes a natural part of that process. It reduces friction, saves time, and keeps your focus on the page that matters. By installing Lensel, you make every tab more powerful. You can understand content faster, break down complicated topics, turn confusing documentation into clear steps, and write polished replies without leaving the page. Everything stays in one place. Everything stays in context. 🌐 Lensel is the closest thing to having an AI partner sitting beside you while you browse. It helps you read, learn, write, and research with less effort and more clarity. Whether you are studying for a class, working through an engineering task, reading industry news, or exploring new topics, Lensel gives you the ability to ask, explore, and create instantly from your sidebar.