UniJump

UniJump is a ChatGPT tool. A free, open-source browser extension that opens ChatGPT in a shortcut or widget on any website, offering a paraphraser and a quick chat box without leaving the page. Requires only an OpenAI account, no UniJump signup.

UniJump is a browser extension that puts ChatGPT within reach on any website you happen to be reading. Instead of switching tabs to the OpenAI chat interface, you trigger the assistant with a keyboard shortcut (Cmd + J on Mac) or a small on-page widget, ask your question or paste your text, and keep working in the same tab. The project is fully open source, so the extension's behaviour can be inspected line by line on GitHub before anyone installs it. The tool bundles two practical modes. Paraphraser takes selected text and returns a reworded version, which suits people polishing emails, drafts or posts while they write. Quick Chat is a general prompt box for questions, explanations, summaries and alternative phrasings, essentially the familiar ChatGPT conversation squeezed into a popover. The page frames these as writing improvement, quick answers and experimentation with different communication styles rather than as a deep research or agentic tool. Setup is deliberately light. There is no UniJump account, no email capture and no registration step. The only requirement is an OpenAI account, which ties usage to OpenAI's own terms and any limits or billing attached to that account. UniJump states that it does not store personal data, entered text or browsing history. The extension is free, and a Chrome Web Store listing is the official install route. UniJump fits the category of lightweight convenience layers over ChatGPT rather than a standalone AI product. Anyone who already pays for or uses OpenAI and wants fewer tab switches will find the workflow natural. Users who need long context documents, project organisation, custom system prompts or team sharing will get more from OpenAI's own interface or a fuller client. Because the distribution is Chrome-centric and the project is community driven, the pace of updates and the breadth of support depend on its contributors.