About
StackBlitz builds browser-based development environments, WebContainers, and AI-assisted app-building tools for individual developers, engineering teams, and enterprises. Its core differentiation is running full Node.js and full-stack applications directly in the browser, reducing local setup friction while enabling collaboration and rapid deployment.
Market
StackBlitz competes in cloud development environments and browser-based IDEs, while Bolt.new places it in the adjacent AI-assisted application-building market. It differentiates through WebContainers, a WebAssembly-based browser runtime that runs full-stack Node.js environments locally and boots them in milliseconds, eliminating much of the local setup traditionally required for web development. StackBlitz also extends this positioning to enterprise customers through security and hosting options for high-security teams.
StackBlitz serves web developers and software engineering teams across companies of all sizes, from individual developers and startups to large enterprise development organizations. Its enterprise offering particularly targets high-security teams, enterprise IT, and engineering leaders that need browser-based development with managed security and hosting.
At a Glance
Problem
Web development often begins with a costly setup tax rather than feature work: configuring local environments, installing dependencies, wiring build tools, and getting deployment and hot reloading working. StackBlitz addresses the resulting waste of developer time and slower feedback cycles by shifting development into the browser; its investor also argues that browser execution can reduce the infrastructure needed to build and test applications.
The killer use case is rapid prototyping and collaborative iteration. Teams can start coding immediately, share work across devices, exchange feedback in real time, and reach market faster. With Bolt.new, the same workflow extends beyond professional developers: a user can describe an application in natural language or provide a Figma design and receive a working, deployable app.
Product / Service
StackBlitz is an instant full-stack web IDE for the JavaScript ecosystem. Its WebContainers technology provides a WebAssembly-based operating system that boots a Node.js environment in milliseconds inside a browser tab, while handling forking, dependency installation, build-tool configuration, hot reloading, and browser-based execution of Node.js and git. The result is a fast, secure development environment without the usual local-machine setup.
Its newer product, Bolt.new, adds an AI development agent to that foundation. Users can prompt, run, edit, and deploy full-stack web applications directly from the browser; Bolt handles the code while the user focuses on the desired product or experience. This combines the accessibility of an AI app builder with the speed and lower infrastructure burden of WebContainers.
Market
StackBlitz competes in browser-based and cloud developer tools, including online IDEs, collaborative coding environments, and the adjacent AI app-builder or low-code market. Comparable products and alternatives cited in the market include GitHub Codespaces, CodeSandbox, Replit, Codeanywhere, and other online coding platforms. Madrona frames the opportunity as spanning a roughly $10–20 billion developer-tools market, with a much larger adjacent opportunity in professional services as software creation becomes accessible to more people.
StackBlitz is not pre-revenue. Madrona reported that Bolt.new grew from zero to $20 million in annualized revenue in eight weeks in late 2024, and the company's site identifies use at major enterprises including Google, Meta, Shopify, Salesforce, Stripe, and others. The revenue figure is historical rather than a current 2026 run rate, but it demonstrates substantial early commercial traction alongside enterprise adoption.
Founders & Leadership
Funding History
Greylock Partners
Undisclosed
Emergence Capital, GV (Google Ventures)
Recent News
StackBlitz’s Bolt.new published a guide focused on creating distinctive, scroll-stopping websites in 2026, including advice for avoiding visibly AI-generated designs.
Evil Martians highlighted its long-running technical partnership with StackBlitz and its work helping scale WebContainers from a browser IDE into Bolt.new.
Bolt.new announced availability through Microsoft Marketplace, Azure deployment, Microsoft 365 integration, and enterprise-grade security for enterprise teams.
Independent coverage compared Bolt.new with Lovable and characterized Bolt.new as better suited to developers seeking control through a file tree, terminal, code editor, and multiple AI model choices.
Independent coverage described Bolt.new as StackBlitz’s browser-based AI coding platform, built on the company’s WebContainers technology.
A Qodo case study examined StackBlitz’s approach to scaling browser-based LLM code generation and reported that Bolt.new had achieved more than $8 million in revenue or related business performance.
Bolt.new announced an update stating that it could handle projects 1,000 times larger than before, supported by improved built-in context management.
StackBlitz introduced bolt.diy as the official open-source version of Bolt.new, allowing users to choose the large language model used for each prompt.
Forge Global’s financing timeline reported a July 2025 Series B valuation of $700 million for StackBlitz and listed the company’s cumulative funding at $113.42 million.
Forbes coverage reported that the web-development startup had been close to shutting down and highlighted its subsequent rapid revenue growth following the launch of Bolt.new.
Active Roles
10Business Model
StackBlitz uses a freemium SaaS model: a free Personal tier supports public projects, while paid Pro and Teams subscriptions charge monthly or annual per-user fees. It also sells enterprise and self-hosted deployments through sales-led contracts, including security, customization, VPC, and on-premises options.
Products
Customers
Tech Stack
Similar Companies
Competitors
Key Investors
Emergence Capital, GV (Google Ventures), Greylock Partners, Madrona, Conviction Partners, Insight Partners