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Practice the skill interviews actually test

Ace your next
tech interview

LeetCode tests if you can solve problems alone. Real interviews test if you can think out loud under pressure. Practice with an AI interviewer that gives real feedback—anytime, anywhere.

Complete one full interview with AI feedback. No account needed.

codesparring.dev/interview
Live
You (speaking)

"So I'm thinking... if I use a hashmap here, I can look up values in O(1) instead of looping through again..."

You
AI

Exactly right. Walk me through what you'd store in the hashmap and how you'd handle the lookup.

// your solution
O(n)HashMap
const map = new Map();

The hidden problem

You forget 80% within a week

MemoryDay 1Day 3Day 7Day 3020%90%
Random practice
With CodeSparring

Our algorithm times your reviews at the optimal moment—right before you forget.

Learn the science

How our AI grades you

Real Interview Scoring

Our AI interviewer evaluates you the same way Meta, Google, Amazon, Microsoft interviewers do. AI usage is optional—you're never penalized for not using it.

What you're evaluated on

Code Quality
Tests pass, efficient, readable
Problem-Solving
Approach, debugging, optimization
Understanding
Explain your code & complexity
Communication
Share your thought process
Code Quality
30%
Problem-Solving
25%
Understanding
25%
Communication
20%

The goal: Can you solve problems, explain your thinking, and write clean code?

How often you use AI·Typing speed·Memorized syntax← These don't matter

What interview prep costs

5+ mock interviews significantly improve pass rates. Here's what that investment looks like.

Human Mock Interviews

Interviewing.io, Pramp Pro, etc.

$0$0

$150–225 per session × 5 sessions

Real human feedback
Requires scheduling in advance
CodeSparring

Unlimited AI mock interviews

$0/month

Cancel anytime

AI adapts to your skill level
Practice at 2am before your 9am interview

One month costs less than a single human mock session.

Feature
LeetCode$35/mo
Human$150+
Ours$25/mo
Practice speaking through solutions
Available 24/7, no scheduling
Real-time hints while coding
Consistent feedback quality
N/A
Varies
Spaced repetition system
Unlimited practice sessions

No credit card required

More than mock interviews

Practice the way real interviews actually work

Modern tech interviews let you use AI tools. They test real-world coding, not memorization. CodeSparring simulates exactly that.

6 Interview Types

DSA
System Design
Bug Fix
Add Functionality
Real-World
Security

Use AI during interviews. Never penalized.

Like Meta's new format—ask your AI partner for debugging help, architecture feedback, or implementation suggestions. We grade understanding, not AI usage.

Available in System Design, Bug Fix & Add Functionality

Can you help me think through the edge cases?
AI Partner is typing...

Ready to practice the way top companies actually interview?

Performance Analytics

Track Every Detail of Your Progress

Our AI doesn't just interview you—it analyzes your performance across 40+ metrics to give you actionable insights for improvement.

Performance Analytics

Track your scores across 15+ DSA patterns with detailed breakdowns.

Cognitive Profiling

Understand your learning style, problem-solving approach, and strengths.

Progress Trends

Visualize your improvement over time with weekly and monthly trends.

Interview Readiness

Get a real-time score of how ready you are for FAANG interviews.

Your Metrics
Last 30 days
+12%
78%Ready
Arrays92%
Trees75%
Graphs58%

40+ Metrics Tracked Per Session

Every session captures detailed interaction data that feeds into your personalized learning profile and AI recommendations.

Session Duration
Time spent
Test Pass Rate
Code quality
Hint Usage
Self-reliance
AI Collaboration
Tool mastery
Communication
Explanation skill
Problem Solving
Approach