What Is Bolt.new? The Browser IDE That Builds Full-Stack Apps
Bolt.new is a browser-based IDE that generates, runs, and lets you edit full-stack applications from natural-language prompts, all inside a single browser tab. It is built by StackBlitz, uses Anthropic’s Claude models to write the code, and runs everything in WebContainers, a technology that executes Node.js entirely in the browser with no local setup.
It shares the vibe coding / AI-app-builder category with v0 by Vercel and Lovable, but Bolt’s defining trait is versatility and speed: it is the most framework-flexible way to spin up and iterate on a working app fast. See Lovable vs Bolt and Bolt vs v0 for direct comparisons.
What Bolt.new actually does
You describe an app, and Bolt scaffolds a full-stack project you can immediately run and tweak, right in the browser:
- A real dev environment, file tree, terminal, package installs, and a live preview, with no local install.
- Full-stack output, not just a front end.
- Direct code control. Because it is an IDE, you edit files yourself alongside the AI, which makes fixing and steering fast.
- One place to prompt, run, debug, and deploy.
The Claude models under the hood are strong at writing and correcting code, which is a big part of why Bolt’s iteration loop feels quick.
Framework flexibility is the headline
Where v0 is centered on React/Next.js and Lovable is opinionated about its stack, Bolt is deliberately broad:
| Supports | Examples |
|---|---|
| Web frameworks | React, Vue, Svelte, Angular, and more |
| Mobile | React Native for cross-platform apps |
| Full-stack | Node backends, APIs, and databases |
If you want to prototype in Svelte one day and React Native the next, Bolt does not fight you.
Where Bolt.new has limits
- UI aesthetics are slightly behind v0 and Lovable. The apps work well; they may need design polish before they look truly premium.
- It runs on token-based credits. Most token usage comes from syncing your project’s files to the AI, so the bigger the project, the more each prompt costs. See the pricing table below.
- It rewards some technical comfort. The IDE surface is a strength for people who can read and edit code, and slightly more to absorb for total beginners than a pure chat builder.
Bolt.new vs. v0 vs. Lovable
| Tool | Sweet spot | Framework range | UI quality |
|---|---|---|---|
| Bolt.new | Fast, versatile prototypes you will iterate on | Widest (React, Vue, Svelte, Angular, RN) | Good |
| v0 | Polished UI in Next.js/React | Narrow (React/Next.js) | Best-in-class |
| Lovable | Complete, shippable products | Opinionated stack | High |
The one-liner: Bolt builds versatile prototypes, v0 builds the interface, Lovable builds the full product.
Bolt.new pricing in brief
Bolt uses token-based pricing rather than message credits:
| Plan | Price | Tokens |
|---|---|---|
| Free | $0 | ~1M tokens/mo (300K daily cap) |
| Pro | ~$25/mo | ~10M tokens/mo, no daily cap, scalable |
| Teams | ~$30/mo per member | Team features |
| Enterprise | Custom | Custom |
Paid tokens roll over for one additional month, and annual billing runs meaningfully cheaper. Because project size drives token use, large apps burn faster, so confirm current numbers on the official Bolt pricing page before committing.
Who Bolt.new is for
- Developers and technical founders who want to move fast across different frameworks.
- Anyone building a quick prototype to validate an idea before investing more.
- Makers who like a real IDE rather than a pure chat interface.
- Mobile prototypers who want React Native without local setup.
It is a weaker fit if you are non-technical and want a finished, investor-ready product with the least code contact, that is Lovable’s lane, or if UI polish in the Next.js ecosystem is your top priority, which is v0’s. For more, see our roundups of AI tools for founders, AI tools for solopreneurs, and no-code AI automation tools.
What happens after the prototype ships
Bolt is fast at turning ideas into working apps. It does not run the operations around them. Once a prototype becomes a product with real users, the daily work is email, scheduling, demos, and follow-up, and no builder handles that. Carly is an AI executive assistant that does, entirely over email, with 200+ integrations across 40+ categories, its own email address, custom instructions, and memory. Carly does not build apps and is not a Bolt.new alternative; it starts at $35/month and handles the operational follow-through so your time stays on building.
Ready to automate your busywork?
Carly schedules, researches, and briefs you—so you can focus on what matters.
See what people say
"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
