Skip to main content
Built for vibe coders & developers

You vibe-coded the app. Now let your users catch the bugs.

blocFeed adds in-app bug reporting to any web app with one NPM package. Users click the broken element, describe what went wrong, and submit an annotated screenshot with full technical context. You get structured, actionable bug reports — not vague Slack messages.

// Initialize the SDK
$npm install blocfeed
+ added 1 package in 2s
+ blocfeed@0.13.0
50+
teams catching bugs faster
10k+
bug reports captured
<2 min
average setup time

Bug reports without context are just noise

#
bug-reports

Same bug, two very different outcomes

Without blocFeed

User reports: "checkout button broken"

You ask: which page? what browser?

User replies (28 min later): "the one after cart"

You ask for a screenshot

Result: No screenshot. No selector. No browser info. Can't reproduce.

With blocFeed

Elementbutton#checkout-submit
Page/cart/checkout
Description"Button doesn't respond when clicked. Tried 3 times."
BrowserChrome 121 / macOS
Result: Exact element, screenshot, browser, page URL, AI-categorized. Fix it now.

Find bugs users report — and the ones they don't

Element-level bug capture, session replays, and passive behavioral detection. One platform for explicit feedback and silent UX issues.

See all features

Click any element to report

Users click the broken element, describe the issue, and submit an annotated screenshot with CSS selector, page URL, and viewport context.

AI triage and issue clustering

Every report is categorized, prioritized, and clustered into issues and themes. Spot spiking trends without reading every entry.

Session replays with AI summary

Connect PostHog to link every feedback item to its session replay. AI summarizes what the user did, where they struggled, and what broke.

Behavioral signals, zero effort

Rage clicks, dead clicks, JS errors, and form abandonment — detected passively. Correlated with feedback to surface issues nobody reported.

Slack, Linear, Jira & PostHog

Spike alerts and weekly UX digests in Slack. One-click issue creation in Linear or Jira, pre-filled with full context.

One package, two minutes

A lightweight NPM package. No iframes, no browser extension, no performance overhead. Behavioral tracking runs passively in the background.

Zero to debug in seconds

01

Create a free account

Sign up in 30 seconds. Create a project and get your unique blocfeed_id. No credit card, no trial period.

02

Drop in the widget

Install the NPM package and add one component. Three lines of code, two minutes of work.

03

Users report bugs in context

A bug report button appears in your app. Users click any element, type what's wrong, and submit with screenshot.

04

Fix what matters first

Every bug report lands in your dashboard with full context. Filter by page, status, or element. See patterns.

Testimonials

What developers are saying

I shipped a Next.js app with Cursor in a weekend. Monday morning, users found 3 bugs I couldn't reproduce. Added blocFeed, and every report came with the exact element selector and a screenshot. Fixed all 3 in an hour.

Raj P.

Indie Developer

We used to spend stand-ups clarifying bug reports. Now they land in the dashboard with the CSS selector, page URL, and browser info. Our average time-to-fix dropped from 2 days to 4 hours.

Lena M.

Engineering Lead, SaaS Startup

The AI clustering is what sold me. 12 reports about the same checkout button got grouped into one issue automatically. I didn't have to read each one — I just fixed it.

Daniel K.

Full-Stack Developer

Engineered for everyone

Developer Free

blocFeed is completely free — no subscriptions, no usage caps, no credit card. Just sign up and start catching bugs.

$0/mo
Unlimited projects
Unlimited bug reports
AI categorization & priority
Annotated screenshots
Session replay integration (PostHog)
Behavioral signal detection
AI issue discovery & weekly digest
Slack, Linear, Jira & PostHog integration
Full analytics dashboard
Unlimited team members
Start Catching Bugs — Free

Frequently asked questions

Is blocFeed really free?
Yes. blocFeed is completely free — unlimited projects, unlimited bug reports, all features included. No credit card, no trial period, no usage caps. We believe every team should have access to proper bug reporting.
How long does it take to set up?
Under 2 minutes. Install the NPM package, add the BlocFeedWidget component to your app with your project ID, and you're done. No configuration files, no backend changes, no build step changes.
How does the AI enrichment work?
Every bug report is processed asynchronously by our AI pipeline. It classifies the category (bug, feature request, usability issue, etc.), assigns a sentiment and priority score, generates a summary, and clusters similar reports into Issues.
What integrations are supported?
blocFeed connects to Slack (alerts and weekly digests), Linear (create issues with one click), Jira (create tickets pre-filled with context), and PostHog (session replays linked to feedback). Email notifications are also supported.
What are behavioral signals?
Behavioral signals are UX issues detected automatically without users filing a report. blocFeed's SDK passively tracks rage clicks (frustrated repeated clicking), dead clicks (clicking non-interactive elements), JS errors, navigation dead ends, and form abandonment. These are aggregated into actionable signals and correlated with explicit feedback.
How does the session replay integration work?
Connect your PostHog account and blocFeed automatically links each feedback submission to the user's session replay. You can watch exactly what the user did before, during, and after reporting the bug — directly from the feedback detail panel.
Will it slow down my app?
No. The blocFeed widget is lightweight and loads asynchronously. It adds no measurable overhead to your page load time or runtime performance.
What frameworks does blocFeed support?
blocFeed works with any web application that supports NPM packages — React, Next.js, Vue, Svelte, Angular, and more.
What data does blocFeed collect from my users?
Only what your users choose to share: the element they selected (CSS selector and position), their bug description, and an annotated screenshot of the page. No personal data, no tracking cookies.
Does it work with AI-generated code?
Absolutely. blocFeed works with any React or Next.js app regardless of how the code was written — whether you built it with Cursor, Bolt, v0, or by hand. The widget is framework-native and installs via NPM.

Stop chasing screenshots.
Start getting real bug reports

Set up blocFeed in under 2 minutes. Free forever — no limits, no credit card, no catch.

Add bug reporting — free forever