Web Development · head to head
Astro vs Cortex
Astro
Web Development
Web framework for content-driven sites shipping minimal JavaScript by default
- From
- Free
- Free plan
- Yes
Cortex
Developer Tools
Internal developer portal that scores service ownership and maturity rather than just cataloguing services
- From
- On request
- Free plan
- No
The short version
- Only Astro has a free tier, so it costs nothing to try first.
- Each has a real cost: Astro limited to static site generation and server-side rendering; real-time applications requiring constant client-server communication are unsuitable; Cortex pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Astro and Cortex actually diverge.
Identical on both: user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Astro
Nothing recorded that Cortex does not also cover.
Only in Cortex
- Service catalogue
- Scorecards
- Initiatives
- Self-service templates
- Query language
- Eng intelligence
- Integrations layer
- On-call and ownership mapping
What people use each for
The jobs each tool is most often brought in to do.
Astro
- Marketing websites and landing pages prioritising performance and SEOnot Cortex
- Documentation and blog platforms with high page volumesnot Cortex
- E-commerce storefronts where page speed affects conversion ratesnot Cortex
- Portfolio and personal websites showcasing static content with minimal interactivitynot Cortex
- Multi-language sites requiring efficient content management and translationnot Cortex
- JAMstack projects integrating headless CMS platforms (Contentful, Sanity, Strapi)not Cortex
Cortex
- A platform team that needs to prove to leadership how far a Kubernetes or framework migration has actually progressed across hundreds of servicesnot Astro
- An organisation where ownership of production services is genuinely unknown after reorganisations or acquisitionsnot Astro
- Enforcing production readiness standards on new services at creation time rather than at incident reviewnot Astro
- Replacing a self-hosted Backstage that is consuming a full-time engineer or two just to stay upgradednot Astro
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Astro
- Limited to static site generation and server-side rendering; real-time applications requiring constant client-server communication are unsuitable
- Smaller ecosystem compared to Next.js; fewer third-party component libraries and integrations readily available
- Build time increases with large content volumes (1,000+ pages); incremental builds not yet as optimised as Gatsby or Next.js
- API routes and serverless functions are less mature than Next.js; complex backend integrations require additional tooling
Cortex
- Pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.
- The catalogue is only as accurate as the metadata you supply, so an organisation with inconsistent repository conventions spends its first quarter cleaning data before any scorecard means anything.
- Scorecards create political friction: publishing a per-team grade turns an engineering standard into a performance metric, and teams will game the rules rather than fix the underlying issue.
- It is closed source and hosted, so organisations with strict data residency or air-gap requirements have limited options compared with running Backstage themselves.
- Value scales with organisation size, so a company with fifty engineers and thirty services will find the catalogue tells them nothing they did not already know while still paying an enterprise contract.
Pricing, plan by plan
Astro
FreeNo published plan breakdown. See the Astro review.
Cortex
On request- Cortex$undefined/year
- Service catalogue and ownership mapping
- Scorecards and initiatives
- Self-service templates
Which should you pick?
Choose Astro if
- You want to start without paying.
- You work on Web, Node.js, Cloudflare, Vercel, Netlify, AWS, Deno.
Choose Cortex if
- You need service catalogue.
- You work on Web, API.
- You also want scorecards.
Questions people ask
- Is Astro or Cortex better?
- Neither clearly leads. Astro starts at Free and Cortex at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Astro or Cortex?
- Astro has a free tier; the other does not. Paid plans start at Free for Astro and On request for Cortex.
- Does Astro or Cortex run on more platforms?
- Astro runs on Web, Node.js, Cloudflare, Vercel, Netlify, AWS, Deno. Cortex runs on Web, API.
- Can I use Astro for free?
- Yes. Astro has a free tier, so you can try it without paying. Cortex starts at On request.
- What is Astro best used for?
- Astro is most often used for marketing websites and landing pages prioritising performance and seo, documentation and blog platforms with high page volumes, e-commerce storefronts where page speed affects conversion rates, portfolio and personal websites showcasing static content with minimal interactivity. Of those, marketing websites and landing pages prioritising performance and seo and documentation and blog platforms with high page volumes are not what Cortex is typically brought in for.
- What can Astro do that Cortex cannot?
- Cortex covers Service catalogue, Scorecards, Initiatives, Self-service templates.
Answered from the vendors’ own pages
Astro: Is Astro free?
Yes. Astro is free and open-source under MIT licence. Deployment hosting (Vercel, Netlify, Cloudflare, AWS) may incur costs depending on usage.
SourceCortex: How is Cortex different from Backstage?
Backstage is an open source framework you build and staff. Cortex is a hosted product with scorecards and initiatives out of the box and no platform team required to keep it running.
Astro: Can I use React components in Astro?
Yes. Astro supports React, Vue, Svelte, Preact, and Solid components. Components are server-rendered by default; add client: directives to enable client-side interactivity only where needed.
SourceCortex: Is pricing published?
No. Cortex requires a sales conversation and prepares a custom proposal.
Astro: How does Astro compare to Next.js for performance?
Astro achieves superior Core Web Vitals scores (66% pass rate vs Next.js 30%) by shipping minimal JavaScript. Next.js defaults to client-side rendering; Astro renders on the server by default.
SourceCortex: Can it self-host?
It is offered as a hosted product; on-premise arrangements are handled through sales rather than published.
Cortex: What is the main adoption risk?
Bad or missing service metadata. The catalogue and every scorecard on top of it inherit whatever quality your repositories already have.
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