One Paragraph

One Paragraph solves a very specific problem: you are reading long-form content in the browser and you want the essence of it in a few seconds, not in a browser tab full of chat UI. The extension adds a right-click style workflow to Chrome, so highlighting text and running One Paragraph returns a condensed paragraph instead of a wall of bullet points or a chat transcript. It is built for people who read a lot on the web — students working through papers, analysts scanning industry posts, and professionals triaging newsletters before a meeting.

Architecturally it is intentionally simple and privacy-leaning. There is no vendor-side account and no subscription; the summarisation call is made with an OpenAI API key you generate and paste into the extension options yourself. That means usage is billed directly by OpenAI at your own rate, and the developer's privacy disclosure states that data is not sold to third parties or used for unrelated purposes. The trade-off is that setup takes a few minutes: you need an OpenAI account and a key before the first summary works.

The extension is small (about 17 KB), published by the developer openairnd, and carries a 5-star rating from a small but satisfied user base. It has not seen a major feature update since 2023, so treat it as a stable, single-purpose utility rather than an actively evolving platform — for fast, no-frills summarisation of on-page text, that is usually all you need.