Honest comparison

AI speed without the lock-in

Other tools generate code fast but trap you on their platform. Weldr is the only AI builder with progressive ownership—take control of your code, piece by piece, whenever you want.

The real difference: What happens when you need something custom?

With other tools

  • Export a messy codebase you didn't write
  • Lose all future AI assistance
  • Hire developers to rewrite from scratch
  • All or nothing—no middle ground

With Weldr

  • Take ownership of just that one thing
  • Keep AI assistance for everything else
  • Your custom code is preserved across regenerations
  • Choose your ownership level per surface

vs Bolt / Lovable / v0

Same speed, but you can leave.

  • Custom code survives regeneration
  • Eject any part, keep AI on the rest
  • Standard Next.js—deploy anywhere

vs Cursor / Copilot

Apps, not code snippets.

  • Complete app from a description
  • Live preview as you chat
  • No coding required to start

vs Hiring Developers

Way faster, same ownership.

  • Days to MVP, not months
  • Same code quality you'd write
  • Hire devs for what matters
Feature
WeldrProgressive Ownership
Bolt.new/Lovable/v0Cursor/CopilotTraditional Dev
Progressive Ownership & Control
Progressive Ownership
Choose Managed, Extended, or Ejected per surface
3 modes
Locked in
Not a generator
Full control
Safe Regeneration
Custom code preserved across regenerations
@custom blocks
Overwrites
N/A
Manual only
Contract Validation
TypeScript compiler validates ejected code
TS compiler API
Manual tests
Extended Merge
Mix generated + custom code in same file
@weldr/@custom
Manual merge
Surface-Level Control
9 surfaces (db, api, ui, domain_logic, etc.)
9 surfaces
All or nothing
N/A
File-level
Code Generation & Development
Full-Stack Generation
Database, API, UI, auth all generated
Complete
Complete
Assists only
Manual
Live Preview
Instant in-browser preview with WebContainers
WebContainers
Yes
Deploy to test
No Coding Required
Chat to complete application
Chat-based
Chat-based
Coding required
Coding required
Model-First Architecture
DSL extraction from conversation
DSL-based
Basic
Manual design
Deployment & Vendor Lock-in
Full Code Export
Download complete source code
Full export
Partial
Your code
Your code
Vendor Lock-in Risk
Can you leave the platform?
No lock-in
Locked in
No lock-in
No lock-in
Deploy Anywhere
Vercel, AWS, Google Cloud, your servers
Any host
Limited
Any host
Any host
Speed & Target Audience
Time to MVP
From idea to deployed application
Hours - 1 Week
Hours - Days
Weeks
Developer-dependent
8-12 Weeks
For full team
Target Audience
Who is this for?
Everyone
Founders, agencies, developers
Mostly non-technical
Founders, designers
Developers only
Technical users
Developers only
Technical users

Ready to try the difference?

Build something, take ownership when you want to, leave whenever you want.

Start Building FreeLearn More About Weldr
Weldr vs Competitors | The AI Builder You Can Leave