Overview
Lovable and Bolt.new are both AI-powered application builders that generate full-stack apps from natural language, but they differ in architecture, backend choices, and security posture. Lovable generates React apps with Supabase backends. Bolt.new generates various framework apps with in-browser development and StackBlitz deployment.
Feature Comparison
| Feature | Lovable | Bolt.new |
|---|---|---|
| Frontend | React + Tailwind | React, Next.js, Vue |
| Backend | Supabase | Various (often serverless) |
| Database | PostgreSQL (Supabase) | Varies by project |
| Auth | Supabase Auth | Varies |
| Deployment | Lovable hosting / export | StackBlitz / export |
| Code export | Yes | Yes |
| Customization | Moderate | High |
Security Analysis
Lovable security characteristics: Consistent Supabase backend means predictable security patterns (RLS is always the key concern). Built-in authentication via Supabase Auth. Database-level security policies available but rarely auto-configured correctly. Export to Vercel provides production-grade infrastructure.
Bolt.new security characteristics: More varied architectures mean less predictable security patterns. Browser-based development may expose code during development. Backend security depends heavily on the chosen framework. More flexibility but more room for security gaps.
Common issues: Both generate apps with missing server-side validation, overly permissive CORS, no rate limiting, and exposed API keys. Lovable apps consistently need RLS hardening; Bolt.new apps need more varied security fixes depending on the generated architecture.
Verdict
Lovable produces more predictable (and therefore more auditable) applications because of its consistent Supabase backend. Bolt.new offers more flexibility but requires broader security knowledge to secure properly. For non-technical founders, Lovable’s consistency makes security hardening more straightforward. Both require thorough security review before production.