Viva voce · “with the living voice”
Defend it out loud.
Walk into the viva like you’ve been asked before.
The viva is named after the way it works: by live voice. VivaVoce is an AI examiner you actually talk to — it reads the chapters you upload, then runs mock defences of your own research, with honest, specific feedback after every answer you speak.
20,000 free credits · no card · no subscription
“Chapter three rests on a fairly small sample. Convince me the effect isn’t noise.”
“Well — the effect held across both cohorts, and we pre-registered the analysis…”
“That’s the right answer. Now say it without the hedge — you ran the power analysis, lead with it.”
Grounded in your actual chapters — no generic questions
Real-time voice examination, not a list to memorise
Your thesis stays on your device, private to you
How a mock thesis defence session runs
Upload your chapters
PDF, TXT, or Markdown, up to 25 MB. Upload the chapters you want to be examined on — focused material gets sharper questions.
Add your field and focus
Optional, but powerful: name your discipline and what to press on — “grill me on the methodology of chapter 3”.
Press start and defend
Your examiner has read the material and opens like a real one: one probing question at a time, spoken, with follow-ups.
Walk out with sharper defences
Honest, specific feedback after every answer. Rehearse the hard questions until they are boring by viva day.
What you can practice before your defence
There’s no menu to click through. You just ask, in your own words, and the session becomes what you need.
Full mock viva
“Run a full mock viva — motivation, contribution, limitations.”
Examiner-style questions one at a time, spoken follow-ups, brief honest feedback after each answer.
The opening summary
“Help me summarise the thesis in ten minutes without reading.”
Most vivas open with it. Craft the spoken version of your thesis, then rehearse it until it lands.
The methodology grilling
“Grill me on the methodology of chapter 3.”
Face the questions you are dreading in rehearsal — sample size, design choices, the claims that feel thin.
The outside examiner
“Ask me what an examiner from outside my subfield would ask.”
Practice explaining your contribution to someone who doesn’t share your assumptions.
You wrote it. Now practice saying it.
You know your thesis better than anyone in the room — and you can still freeze when someone asks you to justify it to their face. A viva is a spoken examination; the only way to get better at it is to be examined, out loud, on your own chapters.
Typical viva prep
- Re-reading the thesis one more time
- Lists of “common viva questions”, the same for everyone
- Answers rehearsed silently in your head
- One mock viva, if your supervisor has the time
VivaVoce
- Questions drawn from your actual chapters and claims
- You defend out loud, live, like the real examination
- Feedback on what you actually said — and a retake
- As many mock vivas as you want, whenever you want
Your first 20,000 credits are free.
Credits are only spent while you’re in a live session. When you need more, buy a one-time pack — no subscription, and credits never expire.
Frequently asked questions
Is VivaVoce free to try?
Yes. Every new account starts with 20,000 free credits — enough for a focused rehearsal. There is no subscription and no card required; if you want more time later, you buy a one-time credit pack.
How is this different from re-reading my thesis or listing likely questions?
A viva is a spoken examination, so VivaVoce makes you answer out loud. It reads the chapters you upload and holds a live voice mock defence — probing your methodology, your claims, and your contribution, then giving feedback on the answers you actually said.
What happens in a session?
You upload the chapters you want to defend, optionally add your field and what to focus on, and start talking. Your examiner opens the way a real one would, then does whatever you ask: a full mock viva, a grilling on one chapter, or a rehearsal of your opening summary.
Should I upload my whole thesis?
Usually not. Uploads take PDF, TXT, or Markdown up to 25 MB, and focused material gets sharper questions — upload the chapters you expect to be examined on hardest, and run separate sessions for different chapters if you like.
Is my thesis private?
Your thesis text is stored on your own device, not on our servers, and is used only to brief your examiner for your live session. Sessions are private to your account.
Does this work for a viva voce and a thesis defence?
Yes — they are the same examination under different names. Whether your university calls it a viva voce, a thesis defence, or a dissertation defence, the format is spoken questions about your own research, and that is exactly what you rehearse here.
Years of work · one spoken hour
Don’t let the real viva be your first rehearsal.
Sign in with Google · 20,000 free credits