Sysiq
Interactive system design

Master System Design.Crush the Interview.

Practice architecture by building it. Design on a live canvas, work through guided labs, and solve structured problems with real evaluation — not just reading.

Explore features
Free tier, no credit card13 problems · 36 labs · 66 topics

Practice architecture, not just theory.

A focused workflow for building intuition through doing — canvas, labs, and structured problems.

INTERACTIVE DIAGRAM CANVAS

Interactive Architecture Canvas

Drag, drop, and connect load balancers, databases, and message queues in real-time. Visualize topologies before you implement them.

HTTPS200 OK
Client
L7 Proxy100k RPS
Load Balancer
MicroserviceP99 12ms
App Service
Postgres / RedisPrimary + Replica
Database
GUIDED ROADMAP

Deep-Dive Curriculum

Master CAP theorem, consistent hashing, caching strategies, and event-driven architecture step by step.

CAP TheoremConsistent HashingRaft ConsensusLSM Trees
WHITEBOARD ESTIMATION TOOL

Napkin Math Calculator

Quickly estimate QPS, storage bandwidth, memory overhead, and instance cluster counts during live design sessions.

Read QPS100,000 req/s8.64B req / day
Storage / Day86.4 GB / day10KB payload avg
RAM Cache128 GB Cluster20% hot data rule

Frequently asked questions

Questions about Sysiq, interview prep, or system architecture.

Sysiq is an interactive system design platform where you don't just read about distributed systems — you actively build and test them. Solve real-world engineering challenges using a live diagram canvas, guided architectural labs, and real-time napkin math estimation tools.

Start free. No credit card required.

Use the core problem set, canvas, and calculators without a paywall. Upgrade only if you need more.

FreeActive
$0/ forever

Core problems, canvas, and calculators. No time limit.

Curated interview problems
Interactive architecture canvas
Napkin math calculator
Progress and leaderboard
ProComing soon

Expanded library and case studies for advancing further.

Full problem library and upcoming releases
Full architecture component library
Guided case studies
Solution benchmarks

Ready to start?

Create an account and begin with the core problem set. No credit card required.

Get in touch

Talk to us.

Stuck on a topology, or want to bring Sysiq to your team? Send a message — we usually reply within 24 hours.

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