Your engineering universe

The first platform where every part of your stack talks to each other.

Features

Stop guessing. Start understanding your code.

Time Distribution
24 total cycles
Explain
Debug
Review
Docs

Maps how your code is used across explainers, previews, reviews, and docs.

37 issues
Critical
Warning
Deprecated

Shows how risk evolves across deployments so your team can intervene early.

Async pitfalls
Common mistake: un-awaited promises inside conditionals.
Dead code hints
3 unreachable branches detected in UserResolver.js.
Render cost spikes
CheckoutFlow.tsx re-renders 11× more than necessary.

Highlights hidden patterns your team might miss in day-to-day work.

Ship confidently with a system that sees what you don’t

37 issues
Critical
Warning
Deprecated
Error Timeline

Maps how your code is used across explainers, previews, reviews, and docs.

Summarizes authentication logic, token lifecycle rules, and edge cases — in plain engineering language, not autogenerated boilerplate.

Pass
AuthService.ts
Module

Maps how your code is used across explainers, previews, reviews, and docs.

Name
Status
Detected BY
AuthService.ts
ISSUE FOUND
Nerdstack Debug
CheckoutFlow.tsx
Pass
Nerdstack Optimize
UserResolver.js
Cleanup
Nerdstack Review
NotificationQueue.go
Pass
Nerdstack Debug

Maps how your code is used across explainers, previews, reviews, and docs.

Find what matters, fix what slows you down

Crystal-clear explanations
Your modules, services and legacy branches rewritten into human-readable insights your whole team understands.
37 issues auto-detected
Critical, warning and deprecated patterns surfaced before they become production fires.
8,500+
Engineers already using Nerdstack daily to decode complex systems and ship faster.

“We pushed a big refactor through with zero stress. The AI reviews and explanations made our entire workflow cleaner and faster.”

Maya Fischer
Head of Engineering
95% satisfaction
Teams report drastically improved clarity, communication and review flow.
Pricing

Cut through the noise

Lame

0$

Per month / billed annually

Best for solo devs, hobby projects, quick experiments and cheap guys.

Start Lame
Included:
Explain Engine (limited)
Basic code summaries
Lightweight docs generation
3 modules per month
Pro

$24

Per month / billed annually

Best for solo devs, hobby projects, quick experiments and cheap guys.

Go Pro
Everything in lame, plus:
Performance insights
Unlimited modules
PR-level explanations
Suggested fixes & improvements
Max

$58

Per month / billed annually

Best for growing teams, production workloads, companies serious about quality.

Go Max
Everything in pro, plus:
Advanced Review Engine
Architecture-level insights
Risk detection & async hazard analysis
Early feature access
Lame

0$

Per month / billed annually

Best for solo devs, hobby projects, quick experiments and cheap guys.

Start Lame
Included:
Explain Engine (limited)
Basic code summaries
Lightweight docs generation
3 modules per month
Pro

$28

Per month / billed annually

Best for solo devs, hobby projects, quick experiments and cheap guys.

Go Pro
Everything in lame, plus:
Performance insights
Unlimited modules
PR-level explanations
Suggested fixes & improvements
Max

$66

Per month / billed annually

Best for growing teams, production workloads, companies serious about quality.

Go Max
Everything in pro, plus:
Advanced Review Engine
Architecture-level insights
Risk detection & async hazard analysis
Early feature access
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Questions?

We’re glad you asked.

What is DualCheck?

DualCheck is a visual testing tool that helps teams compare Figma designs with live websites.

Who is DualCheck for?

DualCheck is built for developers, designers, and teams that want to make sure live pages match their designs before release.

How is this different from reviewing designs manually?

Instead of switching between Figma and the browser and comparing by eye, DualCheck lets you view both together, so that any differences become immediately visible.

Do I need technical setup to use DualCheck?

No complex setup is required. Install the Figma plugin, connect your live site, and start comparing pages.

When should DualCheck be used?

Most teams use DualCheck during QA and pre-launch review, but it can also be used during development to catch mismatches earlier.

Is DualCheck only for Webflow sites?

No. While it was built inside a Webflow agency, DualCheck works with any live website that can be compared against a Figma design.

How can I try DualCheck?

You can request early access directly from the website and start using DualCheck once your workspace is approved.

Ready to reduce review cycles and launch faster?