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Astro vs Heroku

Astro logo

Astro

Web Development

Web framework for content-driven sites shipping minimal JavaScript by default

From
Free
Rated
-
Full reviewWebsite
Heroku logo

Heroku

Cloud & Infrastructure

Cloud Application Platform

From
$7/month
Rated
-
Full reviewWebsite

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; Heroku there is no free dyno tier; the cheapest Eco dyno is $5 per month

Where they differ

Only the attributes on which Astro and Heroku actually diverge.

Attributes where Astro and Heroku differ
AttributeAstroHeroku
Starting priceFree$7/month
Pricing modelopen-sourcesubscription
Free tierYesNo
PlatformsWeb, Node.js, Cloudflare, Vercel, Netlify, AWS, DenoWeb, Api, Workers
CategoryWeb DevelopmentCloud & Infrastructure
FoundedUnknown2007

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 Heroku does not also cover.

Only in Heroku

  • Git-based deployment
  • Buildpacks
  • Dynos (containers)
  • Add-ons marketplace
  • Postgres database
  • Environment variables
  • Logging
  • API

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 Heroku
  • Documentation and blog platforms with high page volumesnot Heroku
  • E-commerce storefronts where page speed affects conversion ratesnot Heroku
  • Portfolio and personal websites showcasing static content with minimal interactivitynot Heroku
  • Multi-language sites requiring efficient content management and translationnot Heroku
  • JAMstack projects integrating headless CMS platforms (Contentful, Sanity, Strapi)not Heroku

Heroku

  • Deploying and scaling web applications with git push and no server administrationnot Astro
  • Running managed Postgres, Redis and Kafka as attached data servicesnot Astro
  • Isolated production environments in a Private Space for regulated workloadsnot 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

Heroku

  • There is no free dyno tier; the cheapest Eco dyno is $5 per month
  • Eco dynos sleep after 30 minutes of inactivity, are restricted to personal accounts and allow only 2 process types
  • Free SSL and 10 process types start at the Basic dyno at $7 per month
  • Private and Shield dyno types require a Private Space, which is billed on top of the dynos
  • Private Space dynos start at $250 per month for Private-M and $500 per month for Private-L
  • Dyno prices are per dyno per month, so an app with several process types multiplies the bill

Pricing, plan by plan

Astro

Free

No published plan breakdown. See the Astro review.

Heroku

$7/month
  • Hobby$7/month
    • 512MB RAM
    • Shared CPU
    • 1 web dyno
  • Standard$50/month
    • 512MB RAM
    • Dedicated CPU
    • Automatic scaling

Which should you pick?

Choose Astro if

  • You want to start without paying.
  • You work on Web, Node.js, Cloudflare, Vercel, Netlify, AWS, Deno.
Astro review

Choose Heroku if

  • You need git-based deployment.
  • You work on Web, Api, Workers.
  • You also want buildpacks.
Heroku review

Questions people ask

Is Astro or Heroku better?
Neither clearly leads. Astro starts at Free and Heroku at $7/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Astro or Heroku?
Astro has a free tier; the other does not. Paid plans start at Free for Astro and $7/month for Heroku.
Does Astro or Heroku run on more platforms?
Astro runs on Web, Node.js, Cloudflare, Vercel, Netlify, AWS, Deno. Heroku runs on Web, Api, Workers.
Can I use Astro for free?
Yes. Astro has a free tier, so you can try it without paying. Heroku starts at $7/month.
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 Heroku is typically brought in for.
What can Astro do that Heroku cannot?
Heroku covers Git-based deployment, Buildpacks, Dynos (containers), Add-ons marketplace.

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.

Source
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.

Source
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.

Source
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