Confused users are quietly costing you money.
Flusterduck groups repeated frustration into one issue and tells you what it costs. After you ship a fix, it checks again.
The demo cycles through issue grouping, behavior summaries, revenue ranking, recommended fixes, and post-deploy verification.
flusterduckIssueApply-discount button dies while validation is in flight
What's the real problem?
It's invisible.
- Users don't file bugs. They just leave.
- Session replays take hours to watch. Nobody watches them.
- Analytics tells you WHAT happened. Never WHY.
Friction isn't meant to be hunted. It's meant to be seen.
What's the solution?
That's why we built Flusterduck
Step 1: Detect
100 behavioral detectors watch clicks, scroll, and timing on every page. Rage clicks, dead clicks, form friction, navigation loops, captured as they happen.
- Rage click/checkoutnow
- Dead click/pricing4s ago
- Form friction/signup9s ago
Step 2: Cluster
Repeated friction becomes ONE ranked issue, with the root cause, the affected element, and a recommended fix attached. No replay marathons.
Checkout button ignores clicks
312 sessions → 1 issue · fix attached
Step 3: Verify
After you deploy, we compare confusion before and after and tell you whether the fix actually worked. Closed means proven, not hoped.
For developers
One tag. Or one package.
<script
src="https://flusterduck.com/d.js"
data-key="fd_pub_YOUR_KEY"
data-dnt="false"
async
></script>- TypeScript-first
- Async, non-blocking
- No form values or user-typed text
- MCP server for your AI tools
Supercharged by AI
Flusterduck doesn't just watch. It fixes issues, talks to your users, and saves revenue.
Every issue is diagnosed by AI the moment it's found. Root cause and fix, written for you. Two of those AI surfaces you can actually watch work:
Guide
Answers the confused user, in the moment
When someone hesitates on a baffling element, Guide explains it in plain language right there, so they finish instead of bouncing. Every question they ask is also first-party evidence of where your UX loses people.
User clicks “What's this?”
“This code applies at checkout. Enter it before payment and your discount shows in the total.”
Autofix
Turns the issue into a code-level fix
From the same evidence, Autofix writes the actual change, and with the GitHub App connected, researches your repo and opens a draft PR. You review and ship; it never merges on its own.
Draft PR opened · checkout.tsx
Enable the button once shipping validates.
Pricing
Each organization gets one 3-day trial. Add a card and pay $0 today. Your selected plan starts after 3 days unless you cancel. Session limits cover every site in your workspace.
50k sessions/mo · pooled org-wide
- 1 site · 3 team members
- All 100 signal detectors
- Issues ranked with recommended fixes
250k sessions/mo · pooled org-wide
- 5 sites · 10 team members
- Everything in Grow
- 10 Autofix draft PRs a month
1M sessions/mo · pooled org-wide
- 10 sites · Unlimited members
- Everything in Scale
- 30 Autofix draft PRs a month