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AI-Powered Interview Coach
An initiative by OneDayCoder
Interview preparation, designed like a product

Prepare with structure. Perform withconfidence.

Grappie turns your resume, target role, and company context into realistic interview practice with clear scoring, sharper feedback, and a workflow built to help you improve session after session.

See How It Works
Context-aware coaching Questions adapt to your role, company, and interview format.
Browser-first workflow Your setup stays fast, private, and easy to revisit from any session.
Practice with pressure Voice answers, pacing, scoring, and optional roast mode for realism.
4-14 questions based on your selected interview duration
< 30s from setup to first question
Saved history, credits, and reports tied to your account
Live session preview Professional mode
Interview flow Tailored follow-ups
Delivery check Clarity, confidence, pacing
After the round Report with action items

Custom Questions

AI generates a duration-based set of questions tailored to your resume, role, and interview type.

Voice Answers

Speak your answers aloud like a real interview. Real-time transcription included.

Live Analysis

Confidence, nervousness, and focus tracked in real-time via camera.

Full Report

Downloadable report with scores, strengths, weaknesses and action items.

How It Works

Three steps to interview-ready

Sign in once, add your API key, and start practising in under 30 seconds with question count matched to your selected session length.

01

Upload Your Resume

Drop in your PDF, DOCX or TXT. Grappie extracts your skills and experience entirely in your browser — your file never leaves your device.

02

Pick Your Interview Type

Choose Technical, HR, Behavioural or Mixed. Enter a target role and company for hyper-targeted questions tailored to that specific employer.

03

Practice & Get Your Report

Answer a duration-based set of AI questions by voice. Grappie tracks confidence, focus and nervousness live, then delivers a full downloadable report with action items.

Interview Types

Built for every kind of interview

Whether you're facing a coding round or a culture-fit HR call, Grappie adapts to the exact format you need to practise.

Technical Round

Coding, system design, and architecture questions drawn directly from your resume's tech stack.

HR Round

Culture fit, motivation, career goals and salary questions. Perfect for recruiter screening rounds.

Behavioural

STAR method situational questions about leadership, conflict and failure. Targeted at competency-based interviews.

Mixed / Full Sim

A realistic end-to-end simulation combining technical, HR and behavioural. Best if you want comprehensive practice.

Higher offer rate with deliberate practice
8
Personalised questions per session
100%
Privacy — all processing on-device

Ready to stop winging it?

Upload your resume, set your target role, and get a duration-based set of personalised interview questions in under 30 seconds with secure email login.

FAQs

Everything people ask before they start

Straight answers on privacy, BYOK, pricing, setup, and what Grappie is actually doing during your mock interview.

Configuration

Set Up Your Interview

Fill in all sections to start your AI mock interview.

Credits
You have 0 interview credits available.
Current balance 0 credits
1 credit = 1 full interview session
Resume Upload
Click to upload or drag and drop
PDF, DOCX, TXT — up to 10 MB
Interview Type

Technical: Coding, system design, and domain-specific problem-solving questions.

Target Role

Leave blank to use role from your resume.

Target Company

Grappie will tailor questions to their culture.

OpenRouter API Key
AI Model

DeepSeek is the fastest free option.

Duration
Interview Style
Resume Roast Mode
Gen-Z style brutal-but-constructive feedback
Camera & Microphone — Required

Grant access before starting. Required for face analysis and voice answers. All data stays on your device.

Camera
Not granted
Microphone
Not granted
Preview here

Preview appears after access is granted.

Resume, API key, and permissions required

History

Your Interview History

Revisit past sessions, scores, and saved reports.

Loading your interviews...
Preparing your interview...
Generating personalized questions from your resume

Interview Report

Generating your report...

Analyzing your performance...
Usually takes 15–20 seconds