Features Pricing FAQ
Get Early Access
Next.js · App Router · Server Components · TypeScript

Stop shipping Next.js
code with nobody
checking your back.

MergeWell is the code reviewer built for Next.js — understands App Router, Server Components, Server Actions, and TypeScript at the framework level. Catches bugs generic AI tools miss entirely. Starts at $19/month.

Start Free — No Card Required See a live review ↓
JK RT AM SL
Be among the first 50 founding members — spots going fast
feat/user-dashboard → main 2 comments
app/dashboard/page.tsx +18 −3
12 async function UserDashboard() {
- const data = await fetchUserData() as any
+ const data: UserData = await fetchUserData()
15
16 return (
17 <DataTable data={data.items} />
18 )
19 }
MergeWell-bot commented just now
🚨 type-safety
Unsafe as any cast hides a potential runtime error. fetchUserData() returns Promise<UserData | null> — casting with any bypasses the null check. If the user has no data yet, data.items will throw at runtime.
💡 Suggested fix
- const data = await fetchUserData() as any
+ const data = await fetchUserData()
+ if (!data) return <EmptyState />
MergeWell-bot commented just now
⚠ caching
Server Component will serve stale data. fetchUserData() is called without cache: 'no-store' — Next.js will cache this request across users. Dashboard data must be dynamic.
💡 Suggested fix
- const data: UserData = await fetchUserData()
+ const data: UserData = await fetchUserData({
+ cache: 'no-store'
+ })
// the problem

You're shipping alone.
Nobody's checking your PRs.

Every senior dev knows the feeling of merging something that "looked fine" — and finding out three days later it wasn't.

💥
That bug that got to production?
A second pair of eyes would have caught it. You were too deep in the context to see it yourself. Happens to everyone — but it doesn't have to.
🪞
You know you should review your own PRs.
You also know you're too close to the code. You wrote it — you can't unsee what you meant to write. Real review needs distance you don't have.
💸
A senior dev review costs $150/hr.
You ship 30 PRs a month. That's $600+ just for basic coverage — assuming you could even find someone available on your schedule.
// how it works

Three steps. Zero friction.

MergeWell lives inside GitHub. No new tools, no dashboards to babysit, no workflow changes.

01
Connect your repo
OAuth with GitHub in 2 clicks. Select the repos you want reviewed. Done. Takes under 2 minutes.
02
Open a PR like normal
MergeWell automatically reviews every PR. Inline comments appear on the exact lines that matter — no extra tab to open.
03
Fix root causes, not just symptoms
Your dashboard tracks recurring patterns. "Your team has repeated this mistake 9 times." Fix the habit, not just the PR.
// what it catches

Not generic feedback.
Next.js-specific intelligence.

MergeWell is trained on Next.js App Router patterns — not "JavaScript in general." It knows what 'use client' propagation means, why cache: 'no-store' matters, and when a Suspense boundary is missing.

🗂️
App Router Expertise
Knows Server vs. Client Component boundaries, streaming with Suspense, parallel routes, intercepting routes, and when 'use client' leaks unnecessarily.
✗ 'use client' on a layout — disables RSC subtree
✗ Missing Suspense boundary (blocks streaming)
✓ Correct loading.tsx placement for segment
🔷
TypeScript Deep Analysis
Hunts down unsafe any casts, missing generics, type narrowing gaps, and return type inference failures.
✗ as any bypasses null check (line 14)
✗ Missing generic in useState<> call
✓ Type is safely inferred, no cast needed
🛡️
Server Actions & Route Security
Catches missing auth checks in Server Actions, CSRF gaps, process.env secrets leaking into client bundles, and unvalidated inputs in Route Handlers.
✗ Server Action missing auth — any user can call it
✗ NEXT_PUBLIC_ prefix exposes secret key
✓ Input validated with zod before DB write
⚡
Data Fetching & Caching
Detects stale cache strategies, missing revalidate tags, over-fetching in layouts, and fetch() calls that bypass Next.js's cache silently.
✗ fetch() in layout — re-runs on every child navigation
✗ No revalidatePath call after mutation
✓ unstable_cache used correctly with tags
🐙
GitHub Native
Comments appear inline on PRs exactly like a human reviewer would leave them. No new tool to learn. Works where your team already works.
✓ Inline comments on changed lines
✓ Suggested code fixes (1-click apply)
✓ PR summary with severity breakdown
🏥
HIPAA Mode Coming soon
A specialized review layer for healthcare dev teams. Flags PHI exposure, insecure data handling, and audit logging gaps. Studio plan and above.
✗ Patient ID logged to console (PHI exposure)
✗ Missing audit log on record access
// from the trenches

Developers who ship alone,
stopped shipping blind.

★★★★★
"I merged a PR with a SQL injection vulnerability last year. Never again. MergeWell caught 3 security issues in my first week — two I genuinely wouldn't have spotted myself."
MK
Marcus K.
Solo dev · SaaS founder · Next.js/TypeScript
★★★★★
"Replaced our ad hoc PR review culture with this. Our junior devs are leveling up faster because they see exactly why something is wrong — not just that it is."
RL
Rebecca L.
CTO · 8-person team · Next.js/TypeScript
★★★★★
"At $9/month as a founding member I'd be an idiot not to use it. It's caught more bugs than I care to admit — including a missing auth check on an admin endpoint. In prod."
TN
Tomas N.
Indie hacker · Next.js App Router
// pricing

Free to try. No card required.

MergeWell is completely free right now. Connect your repo and start getting AI-powered PR reviews — no payment info needed.

🎉
It's free — for now
We're in early access and all reviews are on us. Sign in with GitHub, install the app on your repo, and MergeWell gets to work automatically.
  • ✓ Unlimited PRs during early access
  • ✓ Full Next.js + TypeScript analysis
  • ✓ Inline GitHub comments on every PR
  • ✓ No credit card, no commitment
Start for Free — Sign in with GitHub

We'll notify you before pricing changes. Early users get priority access to founding member rates.

🔒 Founding Member Pricing — Lifetime Locked
First 50 developers get their price locked forever. Never pay standard rates. Ever.
⚡ Price increases to standard the moment spots are gone.
Solo Founding
$9/mo
was $19 → locked forever
Claim Spot
Team Founding
$49/mo
was $79 → locked forever
Claim Spot
19
spots remaining
31 of 50 claimed
Monthly
Annual Save 2 months
Solo
$19/mo
1 developer
  • 1 repo
  • 30 PRs/month
  • TypeScript + React analysis
  • GitHub inline comments
  • 14-day free trial
Start Free Trial
Duo
$39/mo
2 developers
  • 3 repos
  • 80 PRs/month
  • Full stack analysis
  • GitHub inline comments
  • 14-day free trial
Start Free Trial
Popular
Small Team
$79/mo
Up to 5 developers
  • Unlimited repos
  • 200 PRs/month
  • Team pattern tracking
  • Priority review queue
  • 14-day free trial
Start Free Trial
Studio
$149/mo
Up to 15 developers
  • Unlimited repos
  • 600 PRs/month
  • HIPAA Mode (coming soon)
  • Team analytics dashboard
  • 14-day free trial
Start Free Trial
// faq

Common questions

Is there a free trial?
↓
Yes — 14 days free, no credit card required. Connect your repo and start getting reviews immediately. You only need a card when the trial ends.
Does it work with GitLab or Bitbucket?
↓
GitHub only for now. GitLab and Bitbucket integrations are on the roadmap — sign up to be notified when they're available.
Can I cancel anytime?
↓
Yes, always. No contracts, no cancellation fees. Cancel in one click from your account settings. Your plan stays active until the end of the billing period.
What is HIPAA Mode?
↓
A specialized review layer for healthcare development teams. It flags PHI (Protected Health Information) exposure, insecure data handling patterns, and audit logging gaps that could cause HIPAA compliance failures. Available on Studio plan and above — coming soon.

Your next PR is either
reviewed or it isn't.

Get early access — be first when we launch. No spam, ever.

Or lock in $9/month forever before the 50 founding spots are gone →