StackBlitz
In-browser IDE powered by WebContainers; creators of Bolt.new, the AI app builder that runs Node.js in a tab.
About
StackBlitz is the company behind WebContainers — a WebAssembly-based Node.js operating system that boots a real filesystem, package manager, and dev server entirely inside the browser, with no server infrastructure required. The technology powers interactive tutorials, in-app IDEs, and AI-powered tooling with runtime awareness across the web development ecosystem.
In late 2024 StackBlitz launched Bolt.new, an AI full-stack app builder built on WebContainers: one prompt scaffolds frontend, backend, database, and auth with a live preview in the browser tab. Bolt Cloud (added September 2025) supplies databases, storage, edge functions, and hosting, and the open-source bolt.new codebase ships under MIT as a foundation for custom AI dev agents. The hosted product is token-metered (around $25/mo with 10M tokens, and a 1M-token/month free tier with no card required).
What it can do
- Full Node.js dev environment in the browser via WebContainers
- Bolt.new AI app builder — prompt to full-stack app with live preview
- Embeddable WebContainer API for in-app IDEs and tutorials
- One-click deploy to Netlify, GitHub sync, Figma import, Stripe payments
Setup
Sign up at stackblitz.com for the browser IDE, or bolt.new for the AI app builder — both run in the browser with no installation.
Prerequisites
A modern browser; a StackBlitz account for saving work.
Use cases
Works with
Trust score — 9/10
Scored 9/10 (verified tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 64; Trending score 88/100 from researcher assessment.
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.