buggy.run is an automated web application security auditor that helps developers and small teams find vulnerabilities and data leaks in their web apps without requiring security expertise. By simply providing a URL and optional test credentials, buggy.run crawls both public and authenticated pages, runs 56+ security checks, and uses AI to analyze network traffic for session tokens, PII, API keys, and secrets. It then ranks findings by severity and provides clear, actionable fixes. Designed for indie founders, startups, and development teams who ship fast but need to keep their apps secure.

What Makes buggy.run Stand Out

Real-browser crawling: Buggy reaches pages behind your login, not just the public homepage, so it finds vulnerabilities where sensitive data actually lives.
AI-powered data leak detection: Every response is inspected for leaked secrets, tokens, and PII that pattern-based scanners miss.
Plain-English triage: Findings are ranked by severity with exact request details and recommended fixes. An AI agent answers follow-up questions in natural language.
Safe input fuzzing: Crafted attack payloads are sent to forms and APIs to surface injection flaws without taking your app down.
No-code setup: No SDKs, no configuration changes — just drop in your URL and optionally test credentials.

Who Should Use buggy.run

Indie founders and solo developers who need to secure their web apps but lack dedicated security resources. Buggy provides actionable reports without a steep learning curve.
Small development teams shipping frequently. Continuous audits catch regressions and newly exposed endpoints before they become breaches.
Agencies and consultants managing multiple client sites. The Expert plan supports unlimited projects and up to 100 audits per month.

Frequently Asked Questions

What is buggy.run?

buggy.run is an automated web app security auditor that performs 56+ checks on both public and authenticated pages, analyzes network traffic for data leaks, and provides plain-English explanations for each finding. It is built for developers who want to secure their apps without hiring a security consultant.

How does buggy.run work?

You provide your web app's URL and optionally test credentials. Buggy runs a six-phase engine: it crawls public and in-app pages, captures all network requests, runs 56+ security checks, analyzes responses for data leaks, fuzzes inputs, and performs safe rate-limit tests. The AI agent then triages findings and lets you ask follow-up questions.

What stacks and frameworks are supported?

Buggy works with any web stack that serves HTTP, including React, Angular, Vue, Node.js, Next.js, and others. There is no SDK to install or code changes needed.