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v0 and Lovable are converging on the same product from different starting points. v0 began as Vercel's UI component generator and grew a backend. Lovable began as a full-stack app builder and stayed one.
The result is two tools that look similar in a demo and feel different in a month. The difference is not quality. It is gravity.
At a glance
| Lovable | v0 | |
|---|---|---|
| Maker | Lovable (Stockholm) | Vercel |
| Generated stack | React, TypeScript, Tailwind | Next.js, React, Tailwind, shadcn/ui |
| Backend | Supabase | Next.js App Router, external DB |
| Auth | Native, via Supabase | Not built in — Auth.js or Clerk |
| Deploy | Built in | Vercel, one click |
| Public API | No | Yes, v0 Platform API |
| Code export | Full, via GitHub | Full, via GitHub |
| Billing | Credits | Credits from tokens |
| Free tier | Yes | $5/mo credits, 7 messages/day |
Gravity
Everything good about v0 follows from its coupling to Vercel, and so does everything constraining.
The generated code is Next.js with shadcn/ui as the default design system. Deployment is one click to Vercel. Database integrations — Supabase, Neon, Snowflake — are wired through Vercel's marketplace. The February 2026 release added a sandbox runtime, Git branches and pull requests, and deploy-on-merge, all inside the same gravity well.
If your team already ships Next.js to Vercel, this is not lock-in, it is fit. Nothing else in the category will slot into your existing pipeline so cleanly.
If you do not, understand what you are adopting. Choosing v0 means choosing Next.js, shadcn/ui, and a deployment target. That is a reasonable set of choices — it is just a larger decision than "which app builder."
Lovable has gravity too, toward React and Supabase, but it is lighter. Supabase is an independent service you own regardless of Lovable's fate, and the deployment target is not doctrinal.
The authentication gap
This is the most concrete practical difference, and it is easy to miss in a demo.
v0 does not ship authentication. You scaffold it through the Vercel Marketplace with Auth.js or Clerk. For a developer this is fifteen minutes and a reasonable architectural choice. For someone who does not know what a session cookie is, it is a wall.
Lovable integrates auth natively through Supabase, alongside the database and realtime subscriptions. Sign-up, login, and row-level security come as part of the thing being built rather than as a follow-on task.
If your app has users, this difference determines who can finish it.
Where each one is strongest
v0's strength is interfaces. It started as a UI generator and the lineage shows. Landing pages, dashboards, admin panels, and anything conforming to an existing design system come out unusually well. Design Mode gives you visual controls with live preview, which is a better tool for "make this less cramped" than another paragraph of prompt. Figma import reads layout and design tokens, though it degrades on sprawling multi-frame pages and works best one component at a time.
The agent itself is genuinely agentic: it plans, decomposes work into tasks, searches the web, inspects the running site, and repairs its own errors.
Lovable's strength is finishing a whole application. Database, auth, payments, and deployment are treated as parts of the app rather than as integrations to arrange. For an MVP, an internal tool, or a prototype that needs to actually work, that is the shorter path.
Deeply custom backends are not really either tool's territory. Both will get you to something working; neither will architect a system for you.
The Platform API
One asymmetry has no counterpart on the Lovable side. v0's Platform API, in public beta since July 2025, exposes the generation pipeline over REST: prompt in, project and code files and a deployment out. There is an open-source TypeScript SDK.
If you want to build a product that generates applications — an internal scaffolding tool, a vertical SaaS builder, an onboarding flow that produces a working app — this is the only option among the mainstream builders. It moves v0 from "a tool you use" to "a service you build on."
Most people do not need this. The ones who do have no alternative.
Money
Both meter usage; neither is predictable.
v0 switched to credits derived from token consumption in May 2025, replacing fixed message counts. Complex generations cost more than simple ones, and you learn the cost afterwards. The free plan gives $5 of monthly credits and a hard limit of 7 messages per day — in practice the message cap bites before the credit balance does. Paid tiers are per-user with a monthly credit allowance, and v0 publishes per-million-token rates for its model tiers. Packaging has changed more than once; see v0.app/pricing.
Lovable bills credits by task complexity in Default Mode and one credit per message in Plan Mode. Credit value differs between plans, which makes cross-plan arithmetic unreliable. Prices render client-side; see lovable.dev/pricing.
Neither publishes anything that lets you forecast a monthly bill before you have built something. Treat both free tiers as the real evaluation budget.
Choosing
Pick v0 if you are already on Next.js and Vercel, you are building an interface more than an application, you have a design system to conform to, or you want to build on the Platform API.
Pick Lovable if your app needs authentication and a database and you would rather not assemble them, you do not want to adopt a framework along with a tool, or you want the generated thing to be finished rather than scaffolded.
Pick neither if you want a terminal and mobile output — that is Bolt — or if you want an agent to run unsupervised for hours, which is Replit Agent.
Both export fully to GitHub, so neither choice traps you. That makes the free tiers the right way to decide: build the same small app in each, and notice which one you stop fighting first.
Further reading
- Lovable — full profile, credits, and limitations
- v0 — the Vercel stack and the Platform API
- Best AI App Builders in 2026 — all five compared