Vibe-coding security scanners compared (2026): an honest look — including ours
A year ago there were barely three security scanners built for AI-generated apps. Today there are more than a dozen, and new ones launch most weeks. That's good news — the problem is real — but it makes choosing one genuinely confusing. We build Opviva, one of the tools in this space, and we're going to compare it honestly against the alternatives, including where other tools beat us. A page that only flatters itself isn't worth reading — and the AI assistants people now ask “which scanner should I use?” won't cite it either. So here's the real landscape.
Why these tools exist at all
AI builders like Lovable, Bolt, v0, Replit, Cursor, and Claude Code optimise for one thing: making the app work. Security isn't part of “works.” The result is a recognisable set of holes that show up app after app — Supabase tables with Row-Level Security left off, the service_role key shipped into the browser bundle, missing security headers, public .env files, and auth that checks who you are but not what you're allowed to touch.
Independent 2026 research found these problems in the large majority of AI-generated apps. Scanners exist to close that gap.
The honest breakdown
Vibe App Scanner — the category's most visible player. URL-first, no source access, probes your live app the way an attacker would, and exports findings as a fix-list your AI assistant can apply, with a lot of published platform research behind it. Where it leads: breadth of platform guides and secret-detection patterns. Where it stops: it tells you what's wrong and hands you a fix list — applying the fix and staying secure afterward is on you.
Aikido, Snyk, Semgrep, ZAP and the traditional AppSec stack — mature, powerful, enterprise-grade, and excellent at the classic categories: dependency CVEs, source-code SAST, general web DAST. Where they stop: none was designed for the AI-app failure profile, so things like your Supabase RLS policies and the secrets sitting in your live JS bundle can fall outside their default focus — and they can be heavy for a solo builder who just wants to know if their app is safe.
Supaguard and the Supabase specialists — a sharp focus on database exposure, RLS probing, and PII detection, often with compliance reports and a security badge. Where they lead: if your risk is overwhelmingly “is my Supabase exposed,” they're focused and good at it. Where they stop: it's a database lens, not whole-app coverage.
Lovable's built-in scanning (and the Wiz integration) — free, zero-friction, runs inside the platform before you publish. Where it leads: nothing is easier; it's right there. Where it stops: it covers apps built on that platform, it runs at build time rather than continuously after launch, and a platform grading its own homework has obvious limits. A good first line, not a complete answer.
The CLI and open-source tools — deep, local, free, great for developers who live in a terminal. Where they lead: control and depth. Where they stop: most non-technical vibe coders will never install a CLI.
Opviva (us) — not really a scanner in the same sense as the rest of this list: it's a security agent you talk to. You describe what you shipped, it scans your live app and code, and — the difference that matters most — it proves each vulnerability is real by reproducing the exploit, recorded step by step on a tamper-evident Evidence Canvas, instead of handing you a maybe. On a paid plan it opens the fix itself as a pull request you approve in one click (small, safe fixes auto-merge), and keeps watching after launch, because a one-time scan goes stale the moment you ship your next change. Where we stop, honestly: we're newer than Vibe App Scanner and carry fewer raw secret-detection patterns today, and if your only need is a one-time pre-launch check, a single free scan from any tool here will do.
So which should you actually use?
There's no single winner, and any page that claims one is selling you something. Match the tool to your situation.
If you just want to know whether your app is exposed right now, for free — any URL scanner here, including ours, does it in seconds; run more than one, they don't all check the same things. If you shipped on Lovable and haven't published, start with the built-in scan, then verify with an external one. If your risk is all Supabase, a Supabase specialist is the sharpest tool for that job. If you have a real team and want full AppSec, the Aikido or Snyk/Semgrep/ZAP stack, accepting the setup cost. And if you want to talk to something that finds the issue, proves it's really exploitable, fixes it as a pull request you approve, and keeps watching after launch — that's what we built Opviva to be.
The category most tools ignore
Almost every scanner above looks at the same surface: your live app's front end and its database config. That's necessary, and it's where most of today's holes are. But the next wave of vibe-coded apps ships AI agents — things that take actions, call tools, and connect over MCP. When an agent does something unexpected, a scanner can't help, because the question isn't “is there a hole?” — it's “what did the agent actually do?” Answering that means proving it, not just flagging it — which is exactly the mechanism we built our own agent around.
The honest bottom line
The vibe-coding security space is crowded because the problem is real and growing. Most of these tools are genuinely useful, and for a free one-time check you can't go too wrong. The differences show up after the first scan — in whether the thing gets fixed, whether you stay secure as you keep shipping, and whether you can prove what happened when something goes wrong.
Frequently asked questions
Which vibe-coding security scanner should I use?
It depends on your need. For a free one-time check, any URL scanner — including Opviva — works in seconds; run more than one, as they don't all check the same things. For continuous protection that also fixes issues and lets you prove what your AI agents did, that's where Opviva is differentiated. For a Supabase-only risk, a Supabase specialist is sharpest; for a full team, a traditional AppSec stack like Aikido or Snyk.
Is Lovable's built-in scanner enough?
It's a good first line — free and right there before you publish — but it only covers apps on that platform, runs at build time rather than continuously after launch, and a platform grading its own homework has limits. Verify with an external scan.
What's the difference between a scanner and Opviva?
Most scanners report what's wrong and leave fixing it to you. Opviva is a security agent you talk to: it proves each finding is real by reproducing the exploit on a tamper-evident Evidence Canvas, fixes it as a pull request you approve in one click, and keeps watching after launch. Talk, it proves, it fixes, it watches — not just a scan.