Interactive Architecture Sandbox & AI Review

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System Design

Practice system design interviews just like you practice coding problems. Design high-level topologies, define data models, and receive instant AI analysis on bottlenecks and scalability.

https://systemsloth.com/sandbox
SystemSloth Canvas in Browser (Light Mode)

Core Capabilities

Built specifically for practicing real system design

Ditch passive video lectures. Work through authentic distributed systems problems with interactive canvases, structured rubrics, and immediate AI critique.

40+ Node Architecture Canvas

Design complex systems with dedicated components for clients, microservices, caches, message brokers, stream processors, and vector databases.

Link styling & search filters

FAANG Problem Library

Solve curated challenges from top tech interviews: TinyURL, Rate Limiters, Distributed Caches, Notification Systems, and Web Crawlers.

Easy, Medium & Hard tiers

Instant AI Architecture Review

Get automated critiques on single points of failure, bottleneck risks, data consistency tradeoffs, and architectural adherence.

Comprehensive 10-point scoring

Standard 5-Step Rubric

Practice with the exact interview workflow: Functional/Non-Functional scopes, Capacity estimations, API contracts, and deep-dive sequence diagrams.

CAP Theorem & DB schema edges
Interactive Node Topology
Client
HTTPS
API Gateway
Redis Cache
PostgreSQL
40+ drag-and-drop components with relational edge wiring & link styling.

How SystemSloth Works

1

Pick a Real Architecture Problem

Choose from distributed systems challenges like URL shorteners, Rate Limiters, Web Crawlers, and Chat Systems.

2

Follow the 5-Step Rubric & Draw

Calculate capacity, specify API endpoints, wire up databases with relational keys, and compose your high-level topology.

3

Get Instant Senior-Level AI Review

Our AI engine critiques bottlenecks, calculates single points of failure, validates your trade-offs, and provides scoring.

Free to use • No credit card required

Level up your system design skills today

Jump directly into the interactive canvas sandbox or test your skills against our problem library.