ExplainTXT

ExplainTXT is a browser extension that functions as an on‑site AI assistant, designed to help users quickly understand and digest online content without leaving the page. Once installed, it integrates seamlessly into the Chrome browser. When a user highlights any piece of text on a website—whether it is a paragraph from a news article, a technical documentation snippet, a research paper excerpt, or a product description—ExplainTXT presents a small contextual menu. This menu offers options such as "Explain this" and "Summarize this". Selecting either triggers an AI model that processes the highlighted text and returns a concise explanation or a distilled summary in real time. The response appears in an overlay or side panel, allowing the user to keep reading the original page while the AI‑generated output is displayed nearby. The tool is particularly useful for readers who encounter complex or unfamiliar concepts. For example, on a financial or economics article like the one shown on the economist.com page, a user can highlight a sentence about chip‑export controls and AGI investment, and ExplainTXT will break down the key points, clarify jargon, or summarize the broader context. This capability extends to any subject: legal clauses, scientific abstracts, historical analysis, or even dense technical specifications. Instead of opening a separate search engine or switching to another tab, the user gets an instant interpretation right where the reading happens. ExplainTXT also provides a "Speak" or text‑to‑speech feature? (The meta description does not mention this, but the core functionality is clearly described.) The extension supports multiple languages? (The website itself is in English, and the examples are in English; the AI model likely handles multiple languages bas