Who We Are
DrawLint.ai is built by a developer who shared a common frustration: practicing system design with zero feedback. Most engineers prepare by drawing on whiteboards alone, with no way to know if their architecture would pass a real interview.
Having prepared for and gone through system design interviews firsthand, we're building the tool we always wished existed — an AI-powered review partner that gives you real, actionable feedback.
0
AI Reviewers
0
Official Topics
0
AI Providers
0
Workbook Lessons
0
Design Patterns
0/day
Daily Drill
0
Review Dimensions
0%
Public Code
0/wk
Weekly Challenge
How It Works
Five steps from blank canvas to hire signal.
Draw
Excalidraw canvas with components, flows, annotations
Review
6 AI reviewers analyze NFR, Entities, Capacity, API, HLD
Verdict
Lead Reviewer synthesizes a hire signal from all reviews
Respond
Defend your choices — explain trade-offs and alternatives
Re-evaluate
AI reconsiders your signal based on your responses
Beyond Reviews
Practice, compete, and grow — all in one place.
Weekly Challenge
New system design problem every Monday. One-shot submission, leaderboard rankings, and streak tracking to keep you consistent.
51 Official Topics
Curated problems with difficulty levels (Easy / Medium / Hard), pre-filled requirements, and scale expectations.
Community Library
Browse Official and Community tabs — learn from curated solutions and real submissions from other engineers.
Learn Workbook
A free, beginner-friendly workbook — Fundamentals, Building Blocks, and 27 patterns explained with examples. Tracks your reading progress across devices.
Pattern Cheatsheet
A clean, scannable quick-reference of all 27 design patterns, grouped by category with collapsible sections for fast recall.
Daily Drills
A fresh AI-generated 5-question quiz every day across all 27 patterns. Explanations, streaks, and daily + all-time leaderboards.
Built With
Modern stack, zero compromises.
Next.js & React
App Router, RSC, SSR
Tailwind CSS
Utility-first styling
AI Providers
Azure OpenAI, Gemini
Cosmos DB
MongoDB API, global
NextAuth.js
OAuth + credentials
Framer Motion
Physics animations
Publicly Available
Every line of code is public under BSL 1.1. Audit it, fork it, contribute to it. No black boxes, no hidden logic.
View on GitHubOur Story
What began as a side project to automate system design feedback evolved into something bigger — a mission to rethink how engineers prepare for system design interviews.
Today, DrawLint.ai is focused on creating the best AI-powered system design review platform, where visual thinking, engineering discipline, and AI work together seamlessly.
Created by Om Sitapara
Get in Touch
Questions, feedback, or feature requests? We'd love to hear from you.
drawlint.ai.support@gmail.com