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Interview Preparation

Prepare for Your Next
Technical Interview

Curated interview questions mapped to real-world scenarios. Whether you're just getting started or refining what you know - choose your path or jump into a random session.

~
Math.random()

Random Practice Flow

Shuffle through all technologies and categories - a great way to expose gaps and build confidence across the stack.

Start Random SessionBrowse Question Bank
New Feature

Company Specific Tracks

Experience real interview rounds from top tech companies

Daily Surprise

Surprise Company Interview

Jump into an unpredictable interview sequence from top tech giants. Test your knowledge across different companies, rounds, and complex technical challenges in one go.

View Library
>_
console.log()

Output Based

Predict what code snippets will log and spot the bugs. A sharp way to build and test your JavaScript execution intuition, from the basics upward.

Launch Output Track
O(n)
solve()

Coding Problems

Solve 215+ DSA problems in the browser with real code execution, AI hints, and ML-powered weakness analysis. Built for FAANG prep.

Browse Problems

DSA Problems - 215 Problems, Real Execution

Pro

Arrays · Graphs · DP · Trees · Binary Search · AI Tutor · Weakness Radar · Company Readiness

215 ProblemsLive ExecutionAI Hints
Start Solving

Free Resume Builder

Free

12 ATS-friendly templates · Live preview · PDF export · No sign-up required. Build your resume, then ace the interview here.

12 TemplatesPDF ExportNo Sign-up
Build Resume

Browse by Category

Frontend

HTML, CSS, JavaScript, React, and browser internals - everything visible to the user.

ReactCSSBrowser APIs

Backend

Node.js, REST APIs, authentication, caching, queues, and server-side architecture.

Node.jsRESTAuth

Databases

SQL queries, MongoDB aggregation, indexing strategies, and database optimization.

SQLMongoDBIndexing

System Design

Scalability, load balancing, microservices, distributed systems, and trade-off analysis.

ScalabilityMicroservicesCAP

Next.js

App Router, Server Components, SSR vs SSG, middleware, and Next.js internals.

App RouterRSCSSR

Knowledge Base

Architecture patterns, general computer science, and cross-cutting engineering concepts.

PatternsCS ConceptsBest Practices

DSA

Arrays, trees, graphs, dynamic programming, and algorithm complexity for coding rounds.

ArraysDPGraphs

Scenario Based

Real-world engineering decisions, debugging production issues, and system troubleshooting.

DebugTrade-offsProduction

Roadmap

Career and technology roadmaps

Career PathTech GrowthPlanning

Job Portals

Best job portals and boards for developers

Job BoardsHiringOpen Roles

Resume Template

Resume and CV templates for developers

ResumeCVPortfolio

Cold DMs / Emails

Cold outreach templates for networking and job hunting

Cold DMEmailNetworking

HTML

Semantic HTML, accessibility, forms, SEO markup, and modern HTML5 APIs.

HTML5SemanticA11y

CSS

Flexbox, Grid, animations, CSS variables, responsive design, and performance.

FlexboxGridAnimations

Vue.js

Vue 3 Composition API, Pinia, reactivity system, directives, and component patterns.

Vue 3PiniaComposition API

Angular

Angular modules, dependency injection, RxJS, change detection, and NgRx.

RxJSDINgRx

Python

Python fundamentals, OOP, async, decorators, data structures, and Django/FastAPI.

OOPAsyncFastAPI
Topic Explorer

Explore by Technology

Jump directly into questions for your target stack.

JavaScript

Closures, async, event loop

React

Hooks, rendering, patterns

TypeScript

Type system & advanced types

Node.js

Event loop, streams, APIs

Next.js

SSR, RSC, App Router

MongoDB

Aggregation & indexing

SQL

Queries & optimization

System Design

Scalability & architecture

Quick Access

Everything in One Place

All the tools you need to crack your next interview, right here.

Practice Questions

Predict outputs, debug code & explore concepts

Start Practicing →

Coding Problems

Solve 215+ DSA problems with live execution & AI hints

Browse Problems →

Question Library

Browse 1,000+ curated interview questions

Open Library →

Company Interviews

Mock sessions from Google, Meta, Amazon & more

View Companies →

Guides & Articles

Deep-dives on system design, DSA & more

Read Guides →

Random Challenge

Jump into a surprise interview simulation

Start Random Session →
The Knowledge Graph

Select Your
Domain

Choose a specialized technical track and start building the depth of knowledge that technical interviews actually test - at every level.

Active Nodes4,200+
Daily Updates24/7
JS

JavaScript

450+ Active Nodes
Analyze Domain

MongoDB

450+ Active Nodes
Analyze Domain

Next.js

450+ Active Nodes
Analyze Domain

Node.js

450+ Active Nodes
Analyze Domain

React

450+ Active Nodes
Analyze Domain

SQL

450+ Active Nodes
Analyze Domain

HTML

450+ Active Nodes
Analyze Domain

CSS

450+ Active Nodes
Analyze Domain

Vue.js

450+ Active Nodes
Analyze Domain

Angular

450+ Active Nodes
Analyze Domain

Python

450+ Active Nodes
Analyze Domain

AI

450+ Active Nodes
Analyze Domain

Interview AI - Voice Mock Interviews with Instant AI Scoring

New

Behavioral · Technical · System Design · Resume-personalized questions · Real-time transcription · Full feedback report

Voice AIInstant FeedbackFree to Start
Try Interview AI
AI
AI-Powered Interview Prep

AI Mock Interviews That Actually Prepare You

Practice technical and behavioral interviews with AI. Get instant scored feedback on every answer, company-specific questions from your resume, and a full performance report - then track your improvement over every session.

Start Practicing FreeOpen Interview AI
93%of candidates feel interview anxiety
35%improvement with AI prep
Freeto start - no credit card

Interview Result

Software Engineer Interview

Google · Intermediate

82/100EXCELLENT
Communication88/100
Technical79/100
Confidence81/100

Q1 · Behavioral

"Tell me about a time you resolved a conflict in your team."

AI is listening...
The Process

How StackInterview AI Prepares You

01

Set Up Your Interview

Choose type, difficulty, role, and company. Upload your resume for personalized questions.

02

Practice with AI Voice

Answer out loud. The AI listens, transcribes, and responds like a real interviewer.

03

Get Instant Feedback

Every answer scored on communication, technical accuracy, and confidence.

04

Track Your Progress

Dashboard shows score trends, skill radar, and full session history.

Full Journey

Your Path from Nervous to Confident

From zero to job offer - here's the exact journey our AI takes you through, step by step.

1

Create Your Profile

Upload your resume. AI extracts your skills, experience, and target role to personalize every session.

You'll see: a profile card with auto-detected skills and suggested interview types.

2

Configure Your Session

Pick interview type, difficulty (beginner → advanced), job title, company, number of questions, and duration.

You'll see: 3 interview type cards, difficulty selector, and an optional JD field.

3

Enter the Interview Room

Full-screen mode. The AI avatar greets you and asks questions verbally. Answer out loud - real-time transcription shows as you speak.

You'll see: AI avatar, live transcript panel, session timer, and a thinking indicator.

4

AI Evaluates Every Answer

After each answer, the AI scores communication, technical accuracy, and confidence. It also generates a model answer for comparison.

You'll see: per-question score badges accumulating as the session progresses.

5

Receive Your Feedback Report

Session ends → AI aggregates all scores into a full performance report with strengths, areas to improve, and personalized suggestions.

You'll see: an animated score ring, 3 metric cards, pill-chip strengths, and a Q&A accordion.

6

Track Progress Over Time

Every session is saved to your dashboard. Score trends, skill radar chart, and session history show exactly how you're improving.

You'll see: an area chart of score over time, a radar chart of skill dimensions, and your full history.

7

Practice Again - Smarter

One click restarts with your previous config. AI weights questions toward your identified weak areas for targeted improvement.

You'll see: the setup page pre-filled with your last configuration.

Coverage

Practice Every Interview Type

STAR Method

Behavioral

Culture fit, leadership, conflict resolution, and teamwork. Covers the questions that trip up even senior engineers.

  • Tell me about a challenge you overcame
  • Describe your leadership style
  • How do you handle disagreement?
  • Greatest professional achievement
DSA + Concepts

Technical

Data structures, algorithms, system concepts, and language-specific questions. With a real coding environment.

  • Array, tree, graph problems
  • Time & space complexity
  • OOP and design patterns
  • Language-specific deep dives
Senior Level

System Design

Architecture, scalability, trade-offs, and distributed systems. For mid-level to staff engineers targeting FAANG.

  • Design a URL shortener
  • Build a distributed cache
  • Scale a messaging system
  • Database sharding strategies

Features

Everything in One Place

Resume-Personalized Questions

AI reads your resume and generates role-specific questions - not generic ones anyone can Google.

Voice + Text Answers

Speak your answer or type it. AI transcribes and evaluates both with the same scoring rigor.

Real-Time AI Scoring

Instant scores on communication, technical depth, and confidence after every single answer.

Company-Specific Prep

Enter the company and role. Questions calibrated to that company's known interview style and culture.

Full Session History

Every session saved. Review past answers, compare scores across sessions, and see your growth.

Coding Practice

165+ curated problems with an in-browser editor, test runner, and AI tutor built in.

The Data

Join Engineers Who Prepare Smarter

93%

of candidates experience interview anxiety

JDP / GlobeNewswire, 2026

35%

performance improvement with AI prep vs. no practice

Market Research Intellect, 2025

72%

of job seekers say interview preparation is vital to success

PassiveSecrets Survey, 2025

We don't answer your interviews for you. We make sure you can answer them yourself. That's the difference between a GPS and a driving school.

Comparison

How We Compare

Honest, feature-by-feature breakdown against the top alternatives.

FeatureStackInterviewyou are hereFinal Round AIinterviewing.ioPramp
AI Voice Interview✓✓--
Instant Scored Feedback✓✓humanpeer
Coding Environment (165+)✓-✓✓
Resume-Personalized Questions✓✓--
Session History & Progress✓---
Ethical Practice Focus✓-✓✓
Free Tier✓LimitedLimited✓

FAQ

Frequently Asked Questions

AI
Free to Start

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