A voice AI that reads your documents and talks back

Most voice assistants can set a timer or tell you the weather, but they can't open the PDF sitting on your screen and actually discuss it with you. jErVIs is a voice AI that reads your documents: you upload a file, then talk to a glowing orb out loud and it explains, summarises, or quizzes you on what's inside. This page walks through how it works, who it helps, and why pairing voice with your own documents is more useful than either on its own.

What "voice AI that reads your documents" actually means

It's two capabilities working together. First, jErVIs reads a document you give it — a PDF, lecture notes, a report, a chapter you pasted in. Second, you interact with that document by voice: you ask questions out loud and it answers in a natural spoken voice, hands-free.

So instead of scrolling and skimming, you say "give me the three main arguments in this," or "quiz me on chapter two," or "explain the bit about cash flow like I'm new to it" — and it responds by talking. Your eyes and hands are free the whole time. That's the difference between a chatbot you type at and a companion you can revise with while you cook, walk, or fold laundry.

How it works, step by step

The flow is deliberately simple, and it all runs in your browser as a PWA — nothing to install from an app store.

• Upload a document — a PDF or your own notes.
• Turn on hands-free "Hey jErVIs" mode, or just tap and talk.
• Ask out loud: summarise it, explain a section, or say "quiz me" and it fires questions at you.
• It answers in a natural voice so you can keep your eyes off the screen.
• Speech is captured by your browser's built-in speech recognition, with a Whisper speech-to-text fallback on the server for browsers that don't support it — so it still works if your browser is missing that feature.

Why voice and documents belong together

Reading is a screen-and-hands activity. Voice frees both. When you combine them, you unlock the moments where you couldn't read anyway — the commute, the gym, the kitchen, the ten minutes before a meeting when you don't want to open your laptop.

Being quizzed out loud also changes how the material sticks. Answering a spoken question forces active recall instead of passive re-reading, which is one of the more reliable ways to actually remember something. jErVIs turns a static PDF into a back-and-forth you can do with your eyes closed.

A fair note: the AI is genuinely helpful but not infallible. It can misread or oversimplify, so for anything high-stakes, treat its summaries as a fast first pass and check the source. It's a study and comprehension aid, not a guarantee of a grade or a substitute for reading the real thing when it counts.

Who it's for

This capability tends to click for people who have more to read than time to sit and read it.

• Students and exam-takers revising notes or textbook chapters hands-free.
• Professionals who need the gist of a long report before a meeting.
• Anyone working through dense material — contracts, manuals, research — who learns better by discussing than skimming.
• People who simply retain more when they hear it and answer back rather than re-read silently.

Make it yours

jErVIs isn't a one-size-fits-all robot voice. You can restyle the orb's colour and mood, and tune five personality sliders — analytical, playful, dry humour, brooding, and warmth — then save different "looks" for different moods or tasks. A blunt, analytical tutor for exam crunch; a warmer, playful one for casual reading.

You can start free with 8 messages a day, add it to your home screen, and sign in with Google. Pro is $2.99/month or $29.99/year for more daily messages and bonus credits when you want to lean on it harder.

Questions