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Developer Tools · head to head

Deno vs Spring Boot

Deno logo

Deno

Developer Tools

A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in

From
Free
Free plan
Yes
Full reviewWebsite
Spring Boot logo

Spring Boot

Web Development

Stand-alone, production-grade Spring based applications that you can just run

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Deno egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications; Spring Boot requires Java 17 as the minimum version for Spring Boot 4.1.0, per docs.spring.io/spring-boot/system-requirements.html (Aug 2026); older Java runtimes are not supported
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Deno and Spring Boot actually diverge.

Attributes where Deno and Spring Boot differ
AttributeDenoSpring Boot
Pricing modelfreemiumopen-source
CategoryDeveloper ToolsWeb Development

Identical on both: starting price (Free), free tier (Yes), platforms (Web), user rating (Not yet rated).

What people use each for

The jobs each tool is most often brought in to do.

Deno

  • Running TypeScript natively without transpilation overheadnot Spring Boot
  • Migrating Node.js applications to secure-by-default runtimenot Spring Boot
  • Deploying edge functions and serverless containers seamlesslynot Spring Boot
  • Consolidating developer tools into single binarynot Spring Boot

Spring Boot

  • Building microservices and standalone Java applicationsnot Deno
  • Rapid application development with embedded servers and production-ready configurationsnot Deno

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Deno

  • Egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications
  • CPU time overage is $0.10/hour on Pro and Builder tiers, adding to costs for compute-intensive workloads
  • Enterprise pricing is not disclosed; requires sales contact

Spring Boot

  • Requires Java 17 as the minimum version for Spring Boot 4.1.0, per docs.spring.io/spring-boot/system-requirements.html (Aug 2026); older Java runtimes are not supported
  • Requires Spring Framework 7.0.8 or above and Gradle 8.14+ or Maven 3.6.3+, per Spring's own system requirements page, so older toolchains must be upgraded first

Pricing, plan by plan

Deno

Free
  • FreeFree
    • 1 million requests/month
    • 20GB egress bandwidth
    • 10 apps
  • Pro$20/month
    • 5 million requests/month
    • 200GB egress
    • 50 apps
  • Builder$200/month
    • 25 million requests/month
    • 2,000GB egress
    • 10,000 apps
  • Enterprise$null/month
    • Custom limits on all metrics
    • 99.95% reliability SLA
    • Email support with SLA

Spring Boot

Free

No published plan breakdown. See the Spring Boot review.

Which should you pick?

Choose Deno if

  • You want to start without paying.
Deno review

Choose Spring Boot if

  • You want to start without paying.
Spring Boot review

Questions people ask

Is Deno or Spring Boot better?
Neither clearly leads. Deno starts at Free and Spring Boot at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Deno or Spring Boot?
Deno starts at Free and Spring Boot at Free.
Does Deno or Spring Boot run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Deno for free?
Both have a free tier, so you can try either at no cost before committing.
What is Deno best used for?
Deno is most often used for running typescript natively without transpilation overhead, migrating node.js applications to secure-by-default runtime, deploying edge functions and serverless containers seamlessly, consolidating developer tools into single binary. Of those, running typescript natively without transpilation overhead and migrating node.js applications to secure-by-default runtime are not what Spring Boot is typically brought in for.

Answered from the vendors’ own pages

Deno: How much does Deno Deploy cost?

Deno Deploy offers a free tier at $0/month, Pro at $20/month, and Builder at $200/month. Enterprise has custom pricing. All plans include base request and bandwidth limits, with overage charges for additional usage.

Source
Spring Boot: Is Spring Boot free?

Yes, Spring Boot is free and open-source software. The core framework is available without cost, and users can download and use it immediately.

Source
Deno: What are Deno Deploy's overage charges?

Egress bandwidth overages cost $0.20 per GB. CPU time overages are $0.10 per hour on Pro and Builder tiers. Memory time and KV database operations also incur charges beyond included limits.

Source
Spring Boot: What commercial support is available for Spring Boot?

While Spring Boot itself is free, VMware offers optional commercial support, training, and certification through Spring Academy. Tanzu Spring provides support and binaries for OpenJDK, Spring, and Apache Tomcat through a subscription model for enterprises requiring guaranteed support.

Source
Deno: How many apps can I deploy on Deno's free plan?

The free tier includes 10 apps with up to 1 concurrent build. Pro tier supports 50 apps with 3 concurrent builds, and Builder supports 10,000 apps with 20 concurrent builds.

Source
Deno: How many team members can access Deno Deploy?

The free tier supports up to 3 team members. Pro supports 10 team members. Builder supports 25 team members. Enterprise has custom seat limits.

Source
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