Lovable
security
API Keys Exposed in Lovable Frontend Code
Your Lovable app has API keys, database credentials, or other secrets visible in the browser's source code or network requests. Anyone who views your site can see these keys and potentially abuse them.
This is one of the most critical security issues in AI-generated apps. Lovable may place API keys directly in your frontend JavaScript, making them accessible to anyone who opens browser developer tools. Attackers can use these keys to access your database, send emails on your behalf, or rack up charges on your payment processor.
You might discover this when you receive an unexpectedly high bill from a service, when your database is tampered with, or when a security-conscious user reports the exposure.
Error Messages You Might See
Unauthorized: Invalid API key
403 Forbidden - Access denied
Your API key was found in a public repository
Billing alert: Unusual usage detected
Common Causes
- Keys in environment variables loaded client-side — Lovable may use VITE_ or NEXT_PUBLIC_ prefixed environment variables that get bundled into the frontend code
- Direct API calls from the browser — Instead of routing through a backend, the app calls third-party APIs directly from JavaScript with the key embedded
- Hardcoded credentials in source files — API keys placed directly in .ts or .js files rather than environment variables
- Supabase anon key confusion — Misunderstanding which Supabase keys are safe to expose (anon key) vs which must stay secret (service_role key)
- No server-side proxy — The app architecture doesn't include a backend to securely handle API calls
How to Fix It
- Audit your source code — Open browser DevTools (F12), go to Sources tab, and search for keywords like 'key', 'secret', 'password', 'token' in your JavaScript bundles
- Move sensitive keys to the backend — Create server-side API routes (Supabase Edge Functions or a backend service) that hold your secrets and proxy requests
- Rotate compromised keys immediately — If keys were exposed in production, generate new ones in each service's dashboard and revoke the old ones
- Use Row Level Security — If using Supabase, configure RLS policies so even if the anon key is exposed, users can only access their own data
- Check your Git history — Even if you remove keys from code now, they may still be in previous commits. Consider the keys compromised if they were ever committed
Real developers can help you.
David Olverson
Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
Matthew Butler
Systems Development Engineer @ Amazon Web Services
Costea Adrian
Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system.
Jen Jacobsen
I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses.
I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain.
rayush33
JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
Milan Surelia
Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems.
Expertise:
💡 Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web.
🖋️ Sharing insights through technical writing, blogging, and open-source contributions.
🤝 Collaborating closely with designers, PMs, and developers to build seamless mobile experiences.
Notable Achievements:
🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development.
🌟 Open source contributions on Github & StackOverflow for Flutter & Dart
🎖️ Worked on improving app performance and user experience with smart solutions.
Milan is always happy to connect, work on new ideas, and explore the latest in technology.
Taufan
I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms.
Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact.
Anthony Akpan
Developer with 8 years of experience building softwares fro startups
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
Is the Supabase anon key safe to expose?
The Supabase anon key is designed to be public, but only when combined with proper Row Level Security (RLS) policies. Without RLS, anyone with the anon key can read and write all your data.
How do I know if my keys have been abused?
Check the usage dashboards for each service (Stripe, SendGrid, etc.). Look for unusual spikes in API calls, unexpected charges, or data you didn't create.