If you're building a SaaS MVP with AI assistance, two platforms dominate the conversation: Bolt.new and Lovable.dev. Both promise to turn prompts into working applications, but they have meaningful differences in approach, output, and ideal use cases. This post compares them directly to help you choose.
Platform overview: how they differ
| Factor | Bolt.new | Lovable.dev |
|---|---|---|
| Builder | StackBlitz (web containers) | Lovable (AI-focused) |
| Frontend | React + Tailwind (flexible) | React + Tailwind (opinionated) |
| Backend | Multiple options (Supabase, Node, etc.) | Supabase (integrated) |
| Environment | Browser-based IDE | Web interface with preview |
| Code ownership | Full access, export anytime | Full access, export anytime |
| AI approach | Iterative chat + code generation | Prompt-first with refinements |
Speed comparison: both are fast, differently
Both platforms generate working code in minutes, but Bolt.new's web container technology means you see results instantly without waiting for deployments. Lovable's Supabase integration is more seamless for database-heavy apps. For pure UI prototyping, Bolt.new feels faster. For full-stack SaaS with auth and data, Lovable's integrated approach saves time.
Output quality and code cleanliness
Both platforms generate competent React code, but both require cleanup for production. Lovable's output tends to be more opinionated and consistent in structure. Bolt.new gives you more flexibility in stack choice but may require more decisions upfront. Neither produces production-ready architecture without expert intervention.
When to choose Bolt.new
Choose Bolt.new when: you want flexibility in backend choice, you're building a UI-heavy application with less complex data, you prefer the StackBlitz environment, or you want more control over the generated stack. It's particularly strong for landing pages, marketing sites, and prototypes where visual polish matters.
When to choose Lovable.dev
Choose Lovable.dev when: you're building a database-heavy SaaS product, you want the fastest path to working auth and user management, Supabase is your preferred backend (excellent choice for SaaS), or you prefer a more guided, opinionated approach. It's particularly strong for CRUD-heavy applications and standard SaaS patterns.
Frequently asked questions
- Can I switch from Bolt.new to Lovable.dev or vice versa?
- The code from both platforms is standard React that any developer can work with. Switching between the platforms themselves doesn't make sense, but the generated code can be maintained by any React developer regardless of which tool created it.
- Which is cheaper: Bolt.new or Lovable.dev?
- Both platforms are free to try. Development costs depend on who you hire, not the platform. Expert developers for both charge similar rates (£400–£800/day). Lovable may require slightly less cleanup time for database-heavy apps due to its Supabase integration.