Free AI Mock Interview Tools: Best Options for 2026

Mock interviews are one of the most effective ways to prepare for Google, Amazon, Meta, and other top tech interviews. They simulate the pressure of explaining your approach, handling follow-ups, and coding under time limits. But paid platforms like Interviewing.io charge $179+ per expert session — out of reach for many candidates, especially developers in India, Nigeria, or Latin America where currency conversion makes high-dollar tools prohibitive. The good news: several free AI mock interview tools and peer platforms now offer realistic practice at no cost. This guide compares the best free options, their limits, and how to pair them with DSA prep and company-specific guides.

Why Use Free AI Mock Interviews vs Paid Expert Sessions?

Paid expert mocks (e.g. engineers from FAANG) give you high-fidelity feedback and real interviewer perspectives. But they're expensive and often require scheduling. Free AI mock interview tools let you practice anytime: no coordination, no cost. AI tools can ask follow-up questions, give hints, and score your performance — they won't match a human's nuance, but they help you build fluency in the interview format. Peer-to-peer platforms (like Pramp/Exponent Practice) pair you with other candidates: you interview each other. Quality varies by peer, but it's free and forces you to practice both sides — interviewing and being interviewed. For most candidates, a mix works: AI mocks for volume and convenience, peer mocks for live interaction, and optionally one or two paid expert sessions before the real loop. See our mock interview rubric guide for how to interpret feedback from any source.

Exponent Practice (Formerly Pramp): Free Peer Mock Interviews

Exponent Practice (Pramp was acquired by Exponent and rebranded in 2024) remains one of the few genuinely free mock interview platforms. You get 5 free peer sessions per month — no credit card required. Each session is reciprocal: you interview someone for half the time (about 30 minutes each, 60 minutes total), then they interview you. You can choose coding, system design, behavioral, frontend, or data science rounds. The platform provides a shared code editor, structured questions with hints, and rubric-based feedback from your peer. Downsides: peer quality varies (you might get a beginner or someone very strong). Still, for high-volume, zero-cost practice, it's hard to beat. Many candidates in India, Europe, and the US use it as a first step before moving to AI or paid mocks. Pair it with FAANG interview prep and DSA problem-solving framework so you know what to practice.

Free AI Mock Interview Tools: What's Available

Several platforms offer free AI-powered mock interviews. InterviewMode provides AI coding interviews in your browser with support for JavaScript, Python, Java, C++, and Go — topics span 15+ DSA areas, with real-time code review and complexity analysis. InterviewHub offers a free welcome tier (e.g. 30 minutes of AI practice) covering coding, system design, and behavioral with voice-enabled AI and STAR-style coaching. Interviewing.io has a free AI interviewer that simulates a FAANG-style interview for both coding and system design — useful before paid expert sessions. Google Interview Warmup (Grow with Google) is free and focuses on verbal/behavioral practice: role-specific questions, real-time transcription, and AI feedback on clarity and key terms — it does not do live coding. Codecademy's Interview Simulator (in beta) generates questions by role and experience level. Each has different free limits; check current pricing before you commit.

InterviewPilot: Free Tier for FAANG-Specific Practice

InterviewPilot provides AI mock interviews tailored to your target company. The free tier includes practice for Google, Amazon, Microsoft, and Meta — coding (DSA), system design, and behavioral rounds. You pick the company, round type, and duration; the AI asks questions aligned with what those companies actually ask, gives hints when you're stuck, and scores your performance with rubric-based feedback (e.g. Problem Solving, Coding Quality, Communication). No scheduling: start a mock anytime. This is useful for candidates who want company-specific prep without paying for each session. Combine it with Meta interview questions, Google process guides, and DSA resources for full coverage.

Interviewing.io: Free AI Interviewer, Paid Expert Sessions

Interviewing.io connects you with engineers from Google, Amazon, Meta, and other top companies. They offer a free AI interviewer that simulates FAANG-style coding and system design — no cost, no scheduling. Paid expert sessions start at about $179 per session (prices vary by subject and company-specific requests) and include detailed feedback and recorded reviews. Sessions are fully anonymous (voice-only unless you unmask). They also have a Pay Later Program: defer payment until you get a job. For volume practice, start with the free AI; for final calibration, 1–2 paid expert sessions can be worthwhile. See how it compares to other prep platforms.

What Free Tools Can and Can't Do

Free AI mock interview tools excel at: convenience (practice anytime), repetition (run many sessions without cost), DSA and behavioral question variety, and instant feedback on structure and approach. They're weaker at: nuanced human judgment (AI can miss subtle communication issues), company-specific interviewer style (real Google interviewers have their own quirks), and system design deep-dives (AI may not probe as deeply as a senior engineer). Peer mocks add live pressure and unpredictability but depend on peer quality. Use free tools to build fluency and confidence; add 1–2 expert mocks if you want a final calibration before your real interview. Our company interview guides help you know what each company expects.

How to Combine Free Tools with Your Prep

Weeks 1–2: Do problem practice (e.g. NeetCode 150 or Blind 75) and read company interview guides for your target firms. Weeks 3–4: Add 2–3 free AI mocks per week — InterviewPilot, InterviewMode, or Interviewing.io's free AI — to practice talking while coding. Mix in 1–2 Exponent Practice (Pramp) peer sessions for live interaction. Week 5+: If you have system design rounds (e.g. for Meta or Google senior roles), use AI or peer mocks for system design too. Optionally book one paid expert session 1–2 weeks before your loop for final calibration. This mix works whether you're in Bangalore, San Francisco, London, or Lagos — free tools are globally accessible.

Free Mock Interviews for Developers in India and Beyond

Developers in India (Bangalore, Hyderabad, Mumbai, Pune), Nigeria, Latin America, and other regions often face two barriers: cost (paid platforms charge in USD) and scheduling (timezone mismatches with US-based peers). Free AI mock interview tools solve both: no payment, practice on your schedule. Peer platforms like Exponent Practice have global user bases, so you can often find peers in similar timezones. When choosing tools, check language support (most are English-only) and whether the AI asks questions relevant to your target companies — our company guides list what Google, Amazon, Meta, and others actually ask. For India-specific FAANG prep, the same resources work: Meta India, Google India, and Amazon India use similar interview formats to their US counterparts.

Limitations of Free Tools: When to Consider Paid

Free tools are enough for most candidates to build interview fluency. Consider paid expert sessions if: (1) you're 1–2 weeks from your loop and want a final calibration from someone who actually interviews at your target company, (2) you've done 10+ free mocks and still feel uncertain about your communication or system design depth, or (3) you're targeting a niche role (e.g. ML infra, production engineering) where AI or peer mocks may not cover the right topics. Interviewing.io's Pay Later Program reduces upfront cost. For most people, though, free AI mocks + peer mocks + company research is sufficient — especially when combined with DSA topics and system design prep.

Bottom Line

You don't need to spend hundreds on mock interviews. Exponent Practice (Pramp) offers 5 free peer sessions per month. Free AI mock interview tools like InterviewMode, InterviewHub, Interviewing.io's free AI, and InterviewPilot let you practice coding, system design, and behavioral rounds anytime with no scheduling. Use AI for volume and convenience, peer mocks for live pressure, and optionally one paid expert session before your real loop. Pair free mocks with company interview guides and DSA resources so you're practicing the right content. When you're ready, try a free AI mock interview tailored to your target company.