// interview_prep.init()

Ace your tech interview,
one question at a time.

Practice 13,000+ curated questions across React, algorithms, system design, and 170+ more topics. Spaced repetition helps you retain what matters for the real interview.

Tech Interview Practice home dashboard with streaks and daily goals

Browse topics by category with mastery progress

select_domain()

170+ topics, organized by domain

From JavaScript and React to system design, DevOps, and machine learning — pick the topics that match your target role.

23 categories: Frontend, Backend, Algorithms, Databases, Security, and more
Beginner, intermediate, and advanced difficulty breakdown per topic
Track mastery percentage and questions learned for every topic
Search and filter to find exactly what you need to study next

Question detail with syntax-highlighted code answer

// practice_mode

Deep answers with real code

Every question comes with a thorough explanation and syntax-highlighted code snippets — not just bullet points.

Flashcard-style review with "Again" and "Got it" spaced-repetition grading
Markdown answers with inline code highlights and full code blocks
Separate new-question and review sessions to balance learning and retention
Bookmark questions to revisit the concepts you find hardest

Progress dashboard with activity heatmap and mastery radar

learning_analytics()

Track every bit of progress

Streaks, heatmaps, and mastery radar charts make your preparation visible and motivating.

365-day activity heatmap — like GitHub contributions for your brain
Mastery radar chart across all your selected topics
Daily goals, streak tracking, and time-spent analytics
See mastered, new, and reviewed counts at a glance

features[]

Built for serious interview prep

Everything you need to go from nervous to confident — in one focused app.

Spaced repetition

Questions resurface at the optimal interval so answers stick in long-term memory.

Code snippets

Syntax-highlighted JavaScript, Python, SQL, and more — right in every answer.

Streaks & daily goals

Set your daily target and build consistency with streak tracking and reminders.

Progress analytics

Heatmaps, radar charts, and detailed stats show exactly where you stand.

23 technical domains

Languages, frontend, backend, system design, ML, security, behavioral, and leadership.

Smart review scheduling

8-level spaced repetition automatically schedules reviews when you need them.

Works offline

All questions stored locally. Practice on the commute with no internet needed.

Dark themes

Easy on the eyes during late-night study sessions. Multiple themes to choose from.

target_audience

Made for developers like you

Whether you're interviewing next week or building long-term knowledge, this app fits your timeline.

Job seekers

Interviewing at FAANG or a startup? Drill the exact topics your role demands.

Students & new grads

Turn classroom theory into interview-ready answers with structured practice.

Career switchers

Moving into tech? Build foundational knowledge topic by topic at your own pace.

Senior engineers

Brush up on system design, leadership, and behavioral questions for staff-level loops.

Ace your tech interview, one question at a time.