Astro
Astro is an open-source JavaScript web framework that uses server-first rendering and an Islands architecture to ship zero JavaScript by default for fast, content-driven websites. It serves developers building marketing sites, blogs, documentation, and e-commerce, and was acquired by Cloudflare in January 2026.
- Company typePrivate
- Founded2021
- HeadquartersSan Francisco, United States
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Astro does
Astro is an open-source JavaScript web framework optimized for building content-driven websites, including marketing sites, blogs, documentation portals, and e-commerce storefronts. Its core technical proposition is a server-first rendering model with zero JavaScript by default, combined with a proprietary Islands architecture that selectively hydrates only interactive components, leaving the rest as lightweight HTML. This delivers a measured 66% Core Web Vitals passing rate versus WordPress (48%), Gatsby (47%), Next.js (30%), and Nuxt (28%). The framework supports all major UI libraries — React, Vue, Svelte, Angular, Preact, Solid, Qwik, Lit, and Alpine.js — and ships an ecosystem of more than 50 official integrations spanning CMS, database, authentication, media, analytics, and deployment adapters for Cloudflare, Vercel, Netlify, AWS, Deno, Node.js, and SST.
Astro distributes through npm and GitHub on a fully self-serve, product-led growth model. Monetization is indirect: corporate sponsorships (Cloudflare, Netlify, Vercel, Mux, ImageKit, Mintlify, Datadog, CloudCannon, Webflow, ArcJet, Duende), a marketplace of 500+ free and paid themes, an AstroMart merchandise store, a curated Partner Agency Program for enterprise implementations, and community contributions via Open Collective (over $500,000 dispersed to contributors). In January 2026, Cloudflare acquired The Astro Technology Company, bringing the framework and core development team in-house while preserving its open-source MIT license and multi-platform distribution.
Astro firmographics
Firmographics- Name
- Astro
- Legal name
- Astro
- Website
- https://astro.build
- Company type
- Private
- Founded year
- 2021
- Operating status
- Acquired
- Headcount range
- 1–10 employees
- Short description
- Astro is an open-source JavaScript web framework that uses server-first rendering and an Islands architecture to ship zero JavaScript by default for fast, content-driven websites. It serves developers building marketing sites, blogs, documentation, and e-commerce, and was acquired by Cloudflare in January 2026.
- Ownership category
- akta.pro rank
Astro industry classification
Industry- Product category
- Web Development Framework
- NAICS
- Software Publishers (5132)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Industry-Specific Low-Code Platforms (Vertical App Platforms) (HDAEAKAL)
Keywords
Where Astro is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Markets served
Astro business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- Open Source Framework (Free): Astro core framework is free and open-source under MIT license. Revenue is generated through optional premium themes, integrations marketplace, and optional paid support tiers.
- Sponsorships & Partnerships: Financial contributions from sponsors support the community and open source project maintenance. Corporate sponsors include Cloudflare, Netlify, Vercel, and others. Sponsorships provide visibility benefits including logo placement on Astro sites.
- Premium Themes & Templates: The Astro Theme Catalogue contains over 500 free and paid themes. Theme sponsors can donate to Astro's Open Collective and designate themes to be featured on the main themes page.
- Agency Partner Program: Astro Partner Agencies provide professional Astro development services. The program features hand-picked agencies worldwide with demonstrated track records.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Others | Free Open Source Framework |
Go-to-market motion1 record
Distribution channels5 records
Marketing channels8 records
Astro product offering
Product offeringCore offering
Astro builds and distributes an open-source JavaScript web framework optimized for content-driven websites, using a server-first rendering model and the proprietary Islands architecture that ships zero JavaScript by default. The framework supports major UI libraries (React, Vue, Svelte, Solid, Preact, Angular, Qwik) through selective hydration and offers an official Starlight documentation theme, a marketplace of 500+ themes and integrations, and a curated Partner Agency program for enterprise implementations. The core framework is distributed free under the MIT License and monetized through corporate sponsorships, premium themes, and partner-led professional services.
Product overview
Astro is a unified open-source JavaScript web framework designed for building content-driven websites. The core product is the Astro Framework itself, which provides server-first rendering, the Islands architecture for optimal page performance, and multi-framework support. It is distributed through multiple channels: the core framework (MIT licensed), the official Starlight documentation theme for developer documentation, a themes marketplace with 500+ pre-built themes, and an integrations marketplace for extending functionality. Professional services are available through the Partner Agency program, while community resources include comprehensive docs in 14 languages, Discord community, and AstroMart merchandise store. Cloudflare acquired the Astro Technology Company in January 2026, maintaining the framework's open-source nature.
Differentiator
Problem solved
Functional benefit
Brands
- Starlight: A documentation framework built on Astro, used for creating performant, accessible, eco-friendly documentation sites. Used by companies including Microsoft, Google, and Cloudflare.
Products and services
- Astro Framework The core open-source JavaScript web framework designed for building fast, content-driven websites. It features a server-first architecture, the Islands architecture for partial hydration, zero JavaScript by default, and official integrations for React, Vue, Svelte, Solid, Preact, Angular, Qwik, and other UI frameworks. Distributed free under the MIT License via npm and GitHub to individual developers, teams, agencies, and enterprise organizations.
- Astro Starlight Astro's official documentation theme built on the Astro framework. Provides out-of-the-box documentation features including full-text search, internationalization support, dark mode, and accessibility, with best-in-class performance. Used by Microsoft, Google, and Cloudflare for their developer documentation sites.
Quantifiable outcome
- 66% Core Web Vitals passing rate vs WordPress 48%, Gatsby 47%, Next.js 30%, Nuxt 28%
- +2 more outcomes
Companies that use Astro
Customer profileNamed customers8 records
Segments3 records
Ideal customer profiles4 records
Astro technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration47 records
AI capability2 records
Feature9 records
Astro partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered minor and core.
- IrdetominorPartnership announced at IBC 2025 for stream security and personalization solutions. Irdeto integrates with Astro to improve content protection and subscription growth.
- NetlifycoreOfficial deployment adapter and sponsor. Netlify provides hosting infrastructure for Astro projects with one-click deployment support.
- VercelcoreOfficial deployment adapter and sponsor. Vercel provides optimized hosting for Astro projects.
- BejamascoreAstro Partner Agency providing professional Astro development and consulting services.
- Bits&LetterscoreAstro Partner Agency specializing in Astro development and digital services.
- Lucky MediacoreAstro Partner Agency offering web development and digital transformation services.
- Seibert Group GmbHcoreAstro Partner Agency with 25+ years of development expertise and 500+ specialists. ISO 27001 certified for security. Offers custom Astro development, CMS integrations, and end-to-end lifecycle support.
Scale indicators8 records
Recent moves6 records
Expansion highlights6 records
Astro competitors and assessment
Company assessmentBroad incumbents
- Vercel: Frontend cloud platform and primary commercial backer of Next.js; competes directly with Cloudflare in edge hosting for frameworks like Astro. Comparable as the broader incumbent commercializing a leading open-source web framework.
Direct peers
- Hugo: Go-based static site generator widely used for blogs, documentation, and content-heavy sites. Competes for the same content-driven, performance-focused use cases as Astro, especially among documentation teams.
- Next.js: Vercel-developed React framework for SSR/SSG websites with strong developer adoption and a tightly integrated hosting platform. Closest direct competitor to Astro in the JavaScript content-driven website category, with overlapping deployment integrations and a similar enterprise customer base.
- Gatsby: React-based static site generator and framework for content-heavy websites. Direct competitor in the Jamstack/content-driven category, and one of the frameworks Astro explicitly benchmarks against on Core Web Vitals (47% vs Astro's 66%).
- Nuxt: Vue-based open-source meta-framework for building server-rendered and static websites. Competes directly with Astro in the content-driven website space, including similar performance-focused positioning and multi-deployment options.
- Eleventy (11ty): Simpler static site generator emphasizing zero-JavaScript output and minimal build pipelines. Direct competitor in the content-driven, performance-first niche that Astro also targets with its zero-JS-by-default philosophy.
- SolidStart: Meta-framework for SolidJS supporting SSR, streaming, and partial hydration. Competes with Astro on fine-grained reactivity and minimal JavaScript shipping for content-driven applications.
- Qwik: Resumable JavaScript framework from Builder.io focused on instant interactivity with near-zero JavaScript execution. Direct peer in the minimal-JavaScript, performance-first category and one of Astro's supported UI integrations.
- SvelteKit: Svelte's official application framework supporting SSR, SSG, and SPA rendering for content-driven websites. Competes for the same developer audience prioritizing performance and minimal JavaScript payload.
- Remix: Full-stack React framework (now under Shopify) focused on web standards, nested routing, and server rendering. Competes with Astro for developers building performant, content-driven React applications.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Astro social profiles
Digital presenceAstro compliance and trust
Trust signalCompliance3 records
Astro financial estimates
Financial estimateRevenue estimate
Valuation estimate
Astro leadership team
Management profileNumber of profiles
Profiles1 record
Astro funding detail
Funding detailFunding overview
Funding rounds1 record
Investors4 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Astro M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Astro
What does Astro do?
Astro builds and distributes an open-source JavaScript web framework optimized for content-driven websites, using a server-first rendering model and the proprietary Islands architecture that ships zero JavaScript by default. The framework supports major UI libraries (React, Vue, Svelte, Solid, Preact, Angular, Qwik) through selective hydration and offers an official Starlight documentation theme, a marketplace of 500+ themes and integrations, and a curated Partner Agency program for enterprise implementations. The core framework is distributed free under the MIT License and monetized through corporate sponsorships, premium themes, and partner-led professional services.
Is Astro a public or private company?
Astro is a private company. It is classified as corporate owned and is currently acquired.
When was Astro founded?
Astro was founded in 2021. It employs 1 to 10 people.
Where is Astro based?
Astro is headquartered in San Francisco, United States, in the North America region.
How does Astro make money?
Four revenue lines are on record. Open Source Framework (Free) is the primary driver. The others are sponsorships & Partnerships, premium Themes & Templates and agency Partner Program.
Who are Astro's main competitors?
Vercel is listed as a broad incumbent. Direct peers are Hugo, Next.js, Gatsby, Nuxt, Eleventy (11ty), SolidStart, Qwik, SvelteKit and Remix.
Does Astro have an API?
Yes. Astro provides a flexible API system through file-based routing, allowing developers to create API endpoints (e.g., api/json.ts) for handling HTTP requests. The framework also includes Actions for type-safe backend functions callable from frontend JavaScript, and a built-in Middleware API for wrapping incoming requests with custom logic like authentication, logging, or data fetching. Additionally, Astro offers an official MCP server for AI development integration. Developer documentation is at docs.astro.build/en/guides/endpoints.
What industry is Astro in?
Astro's product category is Web Development Framework. Its primary akta.pro industry code is HDAEAKAL, Industry-Specific Low-Code Platforms (Vertical App Platforms). Its NAICS code is 5132 and its SIC code is 7372.