Bolt.new
StackBlitz's prompt-to-app builder that runs a real Node.js environment inside the browser tab itself, no remote VM.
Best forFounders, designers and developers who want a working, deployed full-stack app straight from a prompt or a Figma design, with zero local setup.
Our verdict
Bolt.new’s WebContainers runtime is a genuine, verifiable technical edge — it runs Node.js natively inside the browser sandbox instead of proxying to a remote VM, which is why projects boot and preview instantly with zero local setup.
The browser-native pick — WebContainers is real, differentiated tech, but weigh the token-burn risk and the vendor’s poor support record before committing a team to it.
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What's great
- WebContainers runs a genuine Node.js environment natively inside the browser sandbox — 100% of execution happens client-side, not on a remote VM — a real, documented technical differentiator versus cloud-VM-based rivals.
- Backed by a $105.5M Series B led by Emergence Capital and GV, on top of StackBlitz’s multi-year browser-runtime engineering — real staying power, not a weekend hack.
- MCP server connectors (Notion, Linear, GitHub) and direct Figma-frame import, both shipped in the first months of 2026, cut real tool-switching out of the build loop.
- Scores well with everyday users: 4.5/5 across 46 Product Hunt reviews, praising the zero-setup prompt-to-deployed-app speed.
Watch-outs
- Trustpilot rating is poor — 1.5/5 from 189 reviews — with recurring complaints about slow or unresponsive customer support on billing and account issues.
- Effort/token-based billing on paid tiers can burn through an allowance fast on complex, multi-file debugging loops — a repeated theme across Product Hunt and Reddit reviews.
- No public API for driving builds programmatically from your own code — MCP lets Bolt pull context FROM other tools, but nothing lets you call Bolt from yours.
- The open-source starter-kit repo (MIT-licensed) has not been pushed since December 2024 despite 8,000+ open issues — it is a frozen reference implementation, not an actively maintained self-host option; the real product only lives at the hosted bolt.new.
Also note: The Free tier's 300K daily / 1M monthly token cap is tight for building a complete application, per the vendor's own published limits. · Remaining v1 projects auto-migrate to the newer Bolt Agent on August 3, 2026; workflows tuned to v1 behavior should be re-checked after that date.
What is Bolt.new?
Bolt.new is an AI app-builder from StackBlitz that turns a text prompt into a live, deployed full-stack web app entirely inside the browser. It runs on WebContainers, StackBlitz’s own WebAssembly-based runtime that executes a full Node.js environment client-side instead of spinning up a remote VM, so a generated project boots, edits and previews without ever leaving the tab. The agent scaffolds React, Next.js, Vue, Svelte or Astro projects, wires in a database and auth, and deploys to Netlify in one click. Paid plans start at $25/month after a capped free tier.
What does Bolt.new do?
You describe an app in the chat and Bolt’s agent plans the project, writes the code across every file it needs, installs npm packages, and runs the result live in a WebContainer — a full Node.js environment executing inside the browser tab itself rather than a remote sandbox, so the preview and terminal output appear instantly with no server round-trip. The agent has full control of the filesystem, package manager, dev server and browser console, so it can provision a database (Supabase is the built-in default), add authentication, and iterate on errors it sees in its own console output. Design workflows get a boost from direct Figma-frame import into the chat (added January 2026) and AI image generation/editing with transparent-background and WebP support. Since February 2026, Bolt connects to external Model Context Protocol servers — built-in connectors for Notion, Linear and GitHub, plus custom MCP support — letting the agent pull outside context without leaving the tab. Since July 2026, a “Slides” mode applies the same build-a-real-app approach to presentations: you describe a deck in chat and Bolt generates it as a deployable, interactive web app — not static files — with default layouts, presenter mode, annotations, and interactive elements (3D models, before/after sliders, clickable maps, collaborative idea boards); the underlying component library is open-sourced, so it is also usable from other coding agents like Claude Code, Cursor or Codex, not just Bolt. Model choice defaults to Claude Sonnet 4.6 as of April 2026, with Opus 4.7 available for harder reasoning and Haiku 4.5 for quick edits. Finished projects deploy to Netlify in one click or connect to a GitHub repo; organization admins can install the Bolt GitHub app at the org level, and Teams plans add shared project templates plus centralized billing across seats.
Key features
- Browser-native WebContainers runtime: Runs a full Node.js environment inside the browser tab via WebAssembly — no remote VM, no server round-trip for preview or terminal output.
- MCP server integration: Built-in connectors for Notion, Linear and GitHub plus custom Model Context Protocol servers, added February 2026.
- Figma-to-code import: Drop a Figma frame directly into the chat as a design reference, reducing designer-to-code handoff friction.
- AI image generation & editing: Generate or edit images with transparent-background and automatic WebP conversion, without leaving the builder.
- One-click Netlify deploy + GitHub org access: Publish to a live URL in one click, or connect a GitHub repo; org admins can install the GitHub app at the organization level.
- Bolt Slides: An open-source presentation mode (launched July 2026) that builds decks as real, interactive web apps — 3D models, before/after sliders, clickable maps, collaborative boards and presenter mode — available on every plan and, via its open-sourced component library, usable from other coding agents too.
What are Bolt.new's use cases?
- Idea to live MVP: A founder describes an app in plain language and gets a working, deployed full-stack prototype with zero local setup.
- Design-to-code handoff: A designer imports a Figma frame straight into the chat so the agent builds against the real design instead of a text description of it.
- Team-standardized builds: A Teams-plan organization reuses shared project templates so every new build starts from the same structure and configuration.
What does Bolt.new integrate with?
- Supabase (built-in database)
- Netlify one-click deploy
- GitHub (repo connect + org-level app install)
- MCP servers: Notion, Linear, GitHub, plus custom
- Figma frame import
Why use Bolt.new?
- WebContainers is a real, verifiable technical edge — Node.js executing natively inside the browser sandbox, not a thin wrapper around a cloud VM like most prompt-to-app rivals.
- Backed by a $105.5M Series B (Emergence Capital & GV) and StackBlitz’s multi-year browser-runtime R&D, not a single-feature launch.
- MCP server connectors (Notion/Linear/GitHub) and Figma import cut real tool-switching out of the build loop.
- A free tier and transparent published pricing mean you can try the actual product before any sales conversation.
Pros & cons
Pros
- WebContainers runs a genuine Node.js environment natively inside the browser sandbox — 100% of execution happens client-side, not on a remote VM — a real, documented technical differentiator versus cloud-VM-based rivals.
- Backed by a $105.5M Series B led by Emergence Capital and GV, on top of StackBlitz’s multi-year browser-runtime engineering — real staying power, not a weekend hack.
- MCP server connectors (Notion, Linear, GitHub) and direct Figma-frame import, both shipped in the first months of 2026, cut real tool-switching out of the build loop.
- Scores well with everyday users: 4.5/5 across 46 Product Hunt reviews, praising the zero-setup prompt-to-deployed-app speed.
Cons
- Trustpilot rating is poor — 1.5/5 from 189 reviews — with recurring complaints about slow or unresponsive customer support on billing and account issues.
- Effort/token-based billing on paid tiers can burn through an allowance fast on complex, multi-file debugging loops — a repeated theme across Product Hunt and Reddit reviews.
- No public API for driving builds programmatically from your own code — MCP lets Bolt pull context FROM other tools, but nothing lets you call Bolt from yours.
- The open-source starter-kit repo (MIT-licensed) has not been pushed since December 2024 despite 8,000+ open issues — it is a frozen reference implementation, not an actively maintained self-host option; the real product only lives at the hosted bolt.new.
Limitations
- The Free tier's 300K daily / 1M monthly token cap is tight for building a complete application, per the vendor's own published limits.
- Remaining v1 projects auto-migrate to the newer Bolt Agent on August 3, 2026; workflows tuned to v1 behavior should be re-checked after that date.
Bolt.new pricing
- Free$0
- Pro$25 / /month (yearly saves up to 28%)
- Teams$30 / /month per member
- EnterpriseCustom / pricing
See current pricing on bolt.new ↗Compare Bolt.new alternatives →
Bolt.new specs
Pricing
- Pricing model
- freemium
- Free tier
- ✓ Yes
Capabilities
- Model / LLM
- Claude (Sonnet 4.6 default, Opus 4.7, Haiku 4.5)
- Interface
- Web
- Public API
- ✗ No
- Open source
- ✗ No
Deployment
- Deployment
- Cloud
Bolt.new review
Bolt.new’s WebContainers runtime is a genuine, verifiable technical edge — it runs Node.js natively inside the browser sandbox instead of proxying to a remote VM, which is why projects boot and preview instantly with zero local setup. Recent additions (MCP server connectors, Figma import, AI image editing) keep it moving fast, and a real free tier plus published pricing mean you can try it without a sales call. The honest catches: effort-based billing can run up fast on hard debugging loops, there is no public API to drive it from your own code, and its Trustpilot record (1.5/5 from 189 reviews) points to a real, unresolved customer-support problem worth weighing before you pay. Pick Bolt.new if you want the fastest prompt-to-deployed-app path and are comfortable self-serving through any support issues; pick Replit Agent instead if you want a similar zero-setup experience with a more conventional cloud-VM backend, or Cursor/Windsurf if you want an agent inside your own local toolchain rather than a hosted app factory.
The browser-native pick — WebContainers is real, differentiated tech, but weigh the token-burn risk and the vendor’s poor support record before committing a team to it.
Frequently asked questions
How much does Bolt.new cost?
What makes Bolt.new different from Replit Agent or Cursor?
Does Bolt.new have a public API?
Is the open-source Bolt.new GitHub repo the same as the hosted product?
Who makes Bolt.new?
What is Bolt Slides?
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