VibeEval: A Vibe-Friendly Alternative to Snyk for Testing AI-Generated Apps
VibeEval is your go-to tool for catching bugs, securing your code, and stress-testing your vibe-coded apps built with tools like Lovable and Bolt.new. Our AI agents simulate real users, run full browser tests, and sniff out vulnerabilities so you can launch with confidence.
Use Case 1: Catching Bugs Before Your Lovable App Goes Live
Scenario
Sarah, a non-technical entrepreneur, used Lovable.dev to vibe-code a small e-commerce site for her handmade jewelry business. She described her idea in plain English, and Lovable's AI whipped up a functional app with a Supabase backend and Stripe payments. It looks great, but Sarah's worried—does it actually work across browsers? And what if there are hidden bugs?
How VibeEval Helps
Sarah connects her Lovable app to VibeEval with a single click (no complicated setup like some other tools). VibeEval's AI agents spin up and act like real users, clicking through her site on Chrome, Firefox, and Safari. They test everything: adding items to the cart, checking out with Stripe, and even submitting weird inputs (like emojis in the address field).
Within minutes, VibeEval flags a bug where the checkout button freezes on mobile Safari and suggests a fix based on the generated code. Unlike Snyk, which might overwhelm Sarah with technical vulnerability reports, VibeEval gives her plain-language feedback like, "Your checkout's stuck on iPhones—try tweaking this bit of code." Sarah pushes the fix through Lovable's visual editor, retests, and launches confidently.
Why It's Better Than Snyk
Snyk's great for pro developers, but its focus on deep code scanning can feel like overkill for vibe coders like Sarah who don't know much about codebases. VibeEval prioritizes usability, catching functional and security issues in a way that matches the low-code, AI-driven vibe of Lovable.
Use Case 2: Securing a Bolt.new App Without a CS Degree
Scenario
Jake, a freelance designer, used Bolt.new to vibe-code a portfolio site with a contact form and a gallery. He loves how fast Bolt.new turned his prompts into a live app, but he read on X about a vibe coder whose app got hacked because of sloppy AI-generated code. Jake's paranoid about security flaws like SQL injection but has no clue how to check for them.
How VibeEval Helps
Jake links his Bolt.new project to VibeEval, which scans the AI-generated code for common security pitfalls (like those pesky SQL injections or hardcoded API keys). VibeEval's AI agents also simulate attacks, trying to bypass the contact form or mess with the database.
It catches a vulnerability where the form accepts malicious scripts and provides a clear fix: "Add input sanitization here." Jake doesn't need to understand the techy details—VibeEval's suggestions are beginner-friendly and integrate with Bolt.new's prompt-based editing. Compared to Snyk, which often requires configuring complex workflows and understanding dependency graphs, VibeEval feels like a helpful buddy who speaks Jake's language.
Why It's Better Than Snyk
Snyk's security scans are powerful but assume you're comfortable with DevOps tools and technical reports. VibeEval is built for vibe coders like Jake, offering security checks that don't require a deep dive into code or infrastructure. It's like having a security expert who explains things in plain English.
Use Case 3: Regression Testing for Iterative Vibe-Coded Updates
Scenario
Mia, a hobbyist coder, is building a task management app using Lovable. She's constantly tweaking it based on feedback from her friends, adding features like drag-and-drop tasks or notifications. Each update risks breaking something else (classic vibe-coding chaos), and Mia doesn't have time to manually test every page after every change.
How VibeEval Helps
Mia sets up VibeEval to run automated browser regression tests whenever she pushes a new update in Lovable. VibeEval's AI agents crawl her app, comparing the new version to the last working one. They flag issues like a notification button that stopped working after Mia added the drag-and-drop feature.
VibeEval even pinpoints the AI-generated code causing the conflict and suggests a rollback or tweak. The process is seamless—no need to write test scripts or deal with complex pipelines like Snyk might expect. Mia gets a report saying, "Your notifications broke because of this new code—here's how to fix it," and she's back to vibing in no time.
Why It's Better Than Snyk
Snyk focuses heavily on dependency scanning and container security, which is overkill for Mia's small, vibe-coded app. VibeEval's regression testing is tailored for the fast, iterative nature of vibe coding, catching functional breaks without requiring Mia to set up a whole DevSecOps pipeline.
Use Case 4: Prototyping Safely for a Startup MVP
Scenario
Alex, a startup founder, used Bolt.new to vibe-code a minimum viable product (MVP) for a food delivery app. He's pitching to investors soon and needs to make sure the app doesn't crash during demos or expose user data. Alex heard horror stories about vibe-coded apps with "slopsquatting" issues (malicious packages sneaking into AI-generated code) and wants to avoid that.
How VibeEval Helps
Alex runs his Bolt.new app through VibeEval before the pitch. VibeEval's AI agents stress-test the app, simulating hundreds of users ordering food and signing up. It also scans for "slopsquatting" risks, catching a shady package that Bolt.new's AI accidentally pulled in.
VibeEval flags it with a warning: "This package looks fishy—replace it with this safer one." The tool also runs full browser tests to ensure the app doesn't crash on Edge or mobile devices. Alex gets a clean bill of health and demos his MVP without a hitch. Unlike Snyk, which might bury Alex in dependency alerts he doesn't understand, VibeEval focuses on practical, demo-ready results.
Why It's Better Than Snyk
Snyk's enterprise-grade tooling is awesome for big teams but can overwhelm solo founders like Alex. VibeEval aligns with the vibe-coding ethos—fast, intuitive, and focused on getting your MVP out the door securely and bug-free.
Use Case 5: Vibe Coding Game Jam with Friends
Scenario
A group of friends, some non-coders, join the 2025 Vibe Coding Game Jam, using Lovable to build a simple multiplayer game. They're stoked about their AI-generated code but want to make sure it's secure and works for all players before submitting it. The deadline's tight, and they can't afford to mess around with complex tools.
How VibeEval Helps
The team hooks up their Lovable game to VibeEval, which runs AI-driven browser tests to simulate multiple players joining the game on different devices. It catches a glitch where the game crashes if too many players join at once and flags a security issue where player data could be exposed.
VibeEval's report is super clear: "Your game's server can't handle 10+ players—add this rate limiter. Also, encrypt this data." The team tweaks the prompts in Lovable, retests with VibeEval, and submits a polished game that wows the judges. Snyk might've required them to dig into server logs or dependency trees, but VibeEval keeps it simple and game-jam-friendly.
Why It's Better Than Snyk
VibeEval's focus on quick, actionable feedback fits the fast-paced, creative vibe of game jams. Snyk's in-depth scans are great for enterprise apps but too heavy for a fun, low-stakes project like this.
Why VibeEval Shines for Vibe Coders
VibeEval is like the cool, approachable friend who helps you debug your app without making you feel dumb. It's built for the vibe-coding crowd—people using tools like Lovable and Bolt.new who want to create fast but don't have the tech chops to wrestle with tools like Snyk. Here's the vibe:
- ✓AI Agents That Act Like Users: They click, swipe, and stress-test your app across browsers, catching bugs you'd miss.
- ✓Security for Non-Techies: Spots vulnerabilities like SQL injection or slopsquatting and explains fixes in plain English.
- ✓Regression Testing Made Easy: Ensures your updates don't break your app, without needing a PhD in DevOps.
- ✓Snyk Alternative for Vibe Coders: While Snyk's awesome for pro devs, VibeEval's intuitive, beginner-friendly approach matches the low-code, AI-driven flow of vibe coding.
Ready to ensure your vibe-coded app works flawlessly?
Whether you're a startup founder, a hobbyist, or a game jam crew, let VibeEval break your app before hackers do!