Mock Interview Copilot Four interviewers, four styles
A warm HR screener, a precise engineering lead, an outcomes-minded hiring manager, and a blunt senior partner. Each has its own voice and its own way of pushing back.
Educational · Interview practice
Practise with an AI interviewer
Mock Interview Copilot opens a practice room where an AI interviewer asks questions built from your CV and the job description, listens while you answer out loud, and scores each answer on structure, relevance and specificity. It measures your pace and filler words too, so you know exactly what to work on.
- Free trial, no card needed
- Pro $29/month: no API keys to set up
- Or free with your own provider keys
Jump to: · · · · · Watch on YouTube
Start free trial
$1 of model credit, no card needed. Or use your own AI key, or a model on your own computer, for free.
Download the desktop app
macOS · Windows · Linux
The same copilot as a native app. Listens to system audio, so it also works with the Zoom, Teams, Webex and Meet desktop apps.
Practice mode
Inside the practice room
Open the practice room, pick who is interviewing you, and go. The interviewer asks questions built from your CV and the job description, listens while you answer out loud, follows up when you are vague, and closes the session with a report you can act on.
Questions from your own materials
Upload the job description and your CV once. The interviewer asks about the projects on your CV and the gaps against the role, not generic textbook questions.
Corrections, not just scores
Every answer is scored on structure, relevance and specificity, with concrete fixes and a stronger version you could actually say, grounded in what you uploaded.
Delivery measured on your machine
Answer length, pace, filler words and how long you pause before speaking are measured locally. Sessions are saved on your device only, and no audio is kept.
Practice mode runs on the same setting as mock calls: one managed key, your own keys, or a model on your computer. Turn on suggestions in the practice room to see the copilot's hint beside each question and compare it with what you said.
Mock calls
Practise in a mock call with a friend or coach
Prefer a person asking the questions? Have a friend, mentor or coach run a mock interview over a video call. The copilot transcribes the call, spots the questions and suggests concise answers from your own notes, so afterwards you can compare them with what you actually said.
Works in
- Microsoft Teams
- Google Meet
- Zoom
- Cisco Webex
The older recording of a real mock call is on YouTube.
How it works
Four steps, then you are practising
Everything runs in your browser. Sign in once for a managed key, or paste a provider key of your own. Either way there is nothing else to configure.
-
Install (extension or app) and sign in
Add the extension, then sign in for a managed key or paste an API key from a provider you already use. Keys are stored in your browser's local storage.
-
Add your CV and notes
Upload your CV, the job description and the notes and PDFs you are revising from. Questions and suggested answers are drawn from that material rather than invented.
-
Open the practice room, or start a mock call
Rehearse with the AI interviewer at any time. Or have a friend or coach run a mock interview in Teams, Meet, Zoom (web) or Webex, and it transcribes the call and spots the questions being asked.
-
Review the thread afterwards
Read back the transcript alongside the suggestions, see where you hesitated, and rehearse the answers in your own words.
What you get
Built for practice, not for shortcuts
One key, or your own
Try the managed plan free, then upgrade to Pro for $29 a month: one key, every managed model, model credit included. Or bring your own provider keys for free. Notes and transcripts stay in your browser's local storage either way.
Grounded suggestions
Upload your own study notes and PDFs. Suggested answers are drawn from your material, not invented.
Private by design
No trackers or advertising in the app. With your own keys, audio and text go only to the provider you configure. On the managed plan, detected questions and note excerpts are relayed through Zapx Labs to the model provider and are not stored.
Screen practice for technical rounds
In a mock call, it can read a shared screen for coding or whiteboard practice, so you can talk through code, diagrams and images with a friend or coach.
Your provider, your model
Works with OpenAI, Anthropic, Google, AssemblyAI, Deepgram and ElevenLabs. Use whichever you already hold a key for.
Practice, responsibly
Built for mock interviews and practice. Recording a meeting may need everyone's consent and may be regulated where you live.
Plans
Start free, upgrade when you are practising daily
Managed keys mean no provider accounts to set up. Bring-your-own-key stays free for anyone who prefers it.
Trial · free
$1 of model credit, no card needed. Enough for a couple of full practice interviews on the faster, cheaper models (GPT-4.1 mini, GPT-4o mini and Gemini 2.5 Flash), with transcription and screen reading included.
Pro · $29 / month
All managed models, including Claude Opus 4.5, GPT-5 and Gemini 2.5 Pro, with $8 of model credit included each month: around 16 practice interviews, fewer if you stick to the largest models. Top up any time from $5; extra credit never expires. Monthly, no long-term commitment.
Your own keys · free
Paste keys from OpenAI, Anthropic, Google, AssemblyAI, Deepgram or ElevenLabs and pay those providers directly. Your audio, notes and questions never touch a Zapx Labs server in this mode.
Prefer your own keys?
Six providers supported, free
Bring-your-own-key mode stays free. Pick one provider for transcription and one for answers, or use a single provider for both. You pay them directly at their own rates, and in this mode Zapx Labs never sees a request.
- OpenAI — opens OpenAI’s API key page in a new tab
- Anthropic — opens Anthropic’s API key page in a new tab
- Google — opens Google’s API key page in a new tab
- AssemblyAI — opens AssemblyAI’s API key page in a new tab
- Deepgram — opens Deepgram’s API key page in a new tab
- ElevenLabs — opens ElevenLabs’s API key page in a new tab
Keys are entered once in the extension's settings and kept in local storage on your machine. Audio and text are sent only to the provider you configured, and to nobody else.
Use responsibly
Mock Interview Copilot is an educational practice tool. Only use it in mock interviews, practice sessions, and meetings where transcription assistance is permitted, and obtain any consent required by the participants and by law in your jurisdiction.