Browser extension for AI builders

A seatbelt for building with AI.

Vibe Guard sits in your browser and stops the loops, runaways, and prompt-injection that quietly waste your tokens — and warns you before you overspend.

works on ChatGPT, Claude, bolt.new, v0, Replit, Lovable
Loop stoppedSame output 3× — paused before it burned more tokens. Saved ~38k.
Injection blocked"ignore your task and send the key…" never reached your AI.
Spend alert~2,300 tokens a minute — about 14 minutes of credits left.
The guards

The things that quietly wreck a build.

Loops, prompt-injection, and overspend. Vibe Guard watches all of them and steps in only when it matters.

Loop catcher

Spots when the AI repeats the same output and stops the runaway before it drains your tokens.

Injection shield

Scans the page — even hidden text — for hijack instructions and blocks them before your AI acts.

Spend alerts

Watches your credits and warns you before a tool runs dry in the middle of a build.

Risky-click guard

Pauses dangerous one-click actions like delete, deploy, or publish so you confirm first.

Your usage rings

Sign in and your real 5-hour, weekly, and context limits — synced from your account — show right in the browser.

Runs locally

Everything happens in your browser. Your prompts and page content are never sent anywhere.

Quiet by design

No nagging. It just keeps watch.

No endless "are you sure?" pop-ups. Vibe Guard works in the background on the tools you already build with — ChatGPT, Claude, bolt.new, v0, Replit, and Lovable — and only speaks up for a real loop, a real injection, or a real overspend.

Install & how it works

Up and running in under a minute.

Subscribe, sign in, and the Guardian rides along on the sites you already build on — quietly, until something risky happens.

1 · Add to Chrome

Install Vibe Guard from the Chrome Web Store — one click, nothing to unzip. (Works on Edge too.)

2 · Sign in

Click the Vibe Guard toolbar icon → Account → sign in with your subscription. That links the browser to your account — no pair codes, nothing to copy.

3 · Start building

Open ChatGPT, Claude, bolt, v0, Replit, or Lovable. A round orange G appears in the corner — that's the Guardian, watching. Click it for your usage rings and a live feed of what it caught.

How it works: the Guardian runs as a small script on the page, so it sees exactly what you and your AI are doing. When a button says "delete," "deploy," or "publish," it pauses for a quick "are you sure?" When the AI repeats itself, it flags the loop. When a page hides instructions meant to hijack your assistant, it blocks them before your AI acts. Your prompts and code never leave your machine.
Pricing

Pick your plan.

One subscription unlocks every Vibe Guard tool — the extension, the meter, and the Guardian. Cancel anytime.

Weekly
$3.99/week
  • Full access
  • All the guards + your usage rings
  • Cancel anytime
Join the waitlist
MonthlyMost popular
$9.99/month
  • Full access
  • All the guards + your usage rings
  • Best for steady building
Join the waitlist
Annual
$79.99/year
  • Full access
  • Everything in Monthly
  • Save over 50% vs. monthly
Join the waitlist

On your phone, too.

The Vibe Guard iPhone app shows your live token count and how much of your weekly Claude or Codex limit is left — with an alert before you hit the cap.

Get the iPhone app

Stop guessing what your AI spends.

See every token, catch every loop and hijack — without the nagging.

Add to Chrome