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Cloud · head to head

Deno Deploy vs HAProxy

Deno Deploy logo

Deno Deploy

Cloud

Serverless JavaScript at the edge

From
Free
Rated
-
Full reviewWebsite
HAProxy logo

HAProxy

Cloud

High-performance TCP and HTTP load balancer

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Deno Deploy smaller ecosystem compared to AWS Lambda with fewer third-party integrations; HAProxy configuration syntax is dense and unforgiving, with a steep initial learning curve
  • They diverge on capability: Deno Deploy covers Edge Functions, HAProxy covers High throughput.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Deno Deploy and HAProxy actually diverge.

Attributes where Deno Deploy and HAProxy differ
AttributeDeno DeployHAProxy
Pricing modelUnknownOpen source, no licence fee
PlatformsCloud/WebLinux, Docker, Kubernetes, Self-hosted
Founded2021Unknown

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

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 Deno Deploy

  • Edge Functions
  • Deno KV
  • Automatic HTTPS
  • Global Distribution
  • Zero Config Deploy
  • Git Integration
  • Instant Rollbacks
  • Web Standard APIs

Only in HAProxy

  • High throughput
  • Layer 4 and 7
  • Health checking
  • Rate limiting and ACLs

What people use each for

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

Deno Deploy

  • API endpointsnot HAProxy
  • Edge functionsnot HAProxy
  • Static sitesnot HAProxy
  • Real-time appsnot HAProxy

HAProxy

  • Load balancing at traffic levels where proxy efficiency shows up in the hardware billnot Deno Deploy
  • Precise traffic control — rate limits, sticky sessions, complex routing rulesnot Deno Deploy
  • TCP load balancing for databases and non-HTTP servicesnot Deno Deploy

Where each one falls short

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

Deno Deploy

  • Smaller ecosystem compared to AWS Lambda with fewer third-party integrations
  • Less mature than established serverless platforms; newer company and platform
  • 1GB deployment size limit may restrict larger applications
  • 512MB memory limit lower than some competitors for memory-intensive workloads
  • Smaller user base and community compared to Lambda or Netlify

HAProxy

  • Configuration syntax is dense and unforgiving, with a steep initial learning curve
  • No automatic certificate management, unlike newer servers that treat it as default behaviour
  • The built-in stats page is basic, so real observability needs exporters and dashboards
  • A dedicated load balancer is more machinery than small deployments need

Pricing, plan by plan

Deno Deploy

Free
  • FreeFree
    • 1M requests/month
    • 100GB outbound bandwidth
    • 50ms CPU time per request
  • Pro$20/month
    • Unlimited requests
    • 5GB KV storage
    • Priority support

HAProxy

Free
  • HAProxyFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose Deno Deploy if

  • You need edge functions.
  • You want to start without paying.
  • You work on Cloud/Web.
  • You also want deno kv.
Deno Deploy review

Choose HAProxy if

  • You need high throughput.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want layer 4 and 7.
HAProxy review

Questions people ask

Is Deno Deploy or HAProxy better?
Neither clearly leads. Deno Deploy starts at Free and HAProxy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Deno Deploy or HAProxy?
Deno Deploy starts at Free and HAProxy at Free.
Does Deno Deploy or HAProxy run on more platforms?
Deno Deploy runs on Cloud/Web. HAProxy runs on Linux, Docker, Kubernetes, Self-hosted.
Can I use Deno Deploy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Deno Deploy best used for?
Deno Deploy is most often used for api endpoints, edge functions, static sites, real-time apps. Of those, api endpoints and edge functions are not what HAProxy is typically brought in for.
What can Deno Deploy do that HAProxy cannot?
Deno Deploy covers Edge Functions, Deno KV, Automatic HTTPS, Global Distribution. HAProxy covers High throughput, Layer 4 and 7, Health checking, Rate limiting and ACLs.

Answered from the vendors’ own pages

Deno Deploy: What does Deno Deploy's free tier include?

Deno Deploy free tier includes 1 million requests per month, 100 GB of outbound bandwidth, 50 milliseconds of CPU time per request, 50 custom domains, 1 GiB of KV storage, and up to 5 team members.

Source
HAProxy: Is HAProxy free?

Yes, the community version is open source. HAProxy Technologies sells HAProxy Enterprise separately.

Deno Deploy: What are Deno Deploy's Pro plan features and pricing?

Deno Deploy Pro costs $20/month and removes request limits, increases KV storage to 5GB, and includes priority support. Additional storage beyond 5GB costs $0.75/GiB.

Source
HAProxy: HAProxy or Nginx?

HAProxy is a specialist load balancer with deeper balancing and health-check features. Nginx also serves static content and is more approachable, which is why it is more common as a general web server.

Deno Deploy: What are the deployment size and memory limits for Deno Deploy?

The total size of all files within a deployment (source files and static files) should not exceed 1 gigabyte. Applications have a maximum memory allocation of 512MB.

Source
HAProxy: Does HAProxy handle TLS certificates automatically?

No. Certificate issuance and renewal are external, unlike Caddy where it is automatic.

Deno Deploy: Does Deno Deploy support TypeScript natively?

Yes. Deno Deploy runs TypeScript natively with zero-configuration TypeScript support. Code can be written in TypeScript or JavaScript and runs on the same V8 engine.

Source
Deno Deploy: What security features does Deno Deploy provide?

Deno Deploy features an opt-in permission system to mitigate supply chain attacks. Permissions can be explicitly granted for file, network, and environment access, running code securely by default.

Source
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