Developer Tools · head to head
Deno vs Longhorn
Deno
Developer Tools
A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in
- From
- Free
- Free plan
- Yes
Longhorn
Cloud
Open source distributed block storage for Kubernetes, incubating at the CNCF
- From
- Free
- Free plan
- Yes
The short version
- Each has a real cost: Deno egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications; Longhorn there is no vendor and no SLA, so a production incident at three in the morning is your own problem unless you buy SUSE Rancher Prime support separately.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Deno and Longhorn actually diverge.
Identical on both: starting price (Free), free tier (Yes), 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 Deno
Nothing recorded that Longhorn does not also cover.
Only in Longhorn
- Per-volume controllers
- Synchronous replication
- Snapshots and backups
- Volume expansion
- Disaster recovery volumes
- Web interface
What people use each for
The jobs each tool is most often brought in to do.
Deno
- Running TypeScript natively without transpilation overheadnot Longhorn
- Migrating Node.js applications to secure-by-default runtimenot Longhorn
- Deploying edge functions and serverless containers seamlesslynot Longhorn
- Consolidating developer tools into single binarynot Longhorn
Longhorn
- An on-premises Kubernetes cluster with local disks and no SAN that needs replicated persistent volumesnot Deno
- Edge sites where shipping a storage array is impractical and three nodes is the whole clusternot Deno
- A K3s deployment where the storage layer must be light enough to run alongside the workloadsnot Deno
- A team that wants snapshots and S3 backups of persistent volumes without paying per-node storage licencesnot 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
Longhorn
- There is no vendor and no SLA, so a production incident at three in the morning is your own problem unless you buy SUSE Rancher Prime support separately.
- Synchronous replication across nodes means write latency depends on the slowest replica and the network between nodes, which makes it a poor fit for latency-sensitive databases.
- Every replica is a full copy, so three-way replication consumes three times the raw capacity, unlike erasure-coded systems that are far more space efficient.
- It is designed for block storage on modest clusters and does not scale to the node counts or throughput that Ceph or a commercial array handles, so growth eventually forces a migration.
- Recovery from certain degraded states, such as a volume stuck detaching or replicas failing to rebuild, requires manual intervention and knowledge of Longhorn internals that is not widely held.
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
Longhorn
Free- LonghornFree
- Apache 2.0 licensed, no licence fee
- Community support via GitHub and Slack only
- No vendor SLA or escalation path
Which should you pick?
Choose Longhorn if
- You need per-volume controllers.
- You want to start without paying.
- You work on Linux, Kubernetes.
- You also want synchronous replication.
Questions people ask
- Is Deno or Longhorn better?
- Neither clearly leads. Deno starts at Free and Longhorn at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Deno or Longhorn?
- Deno starts at Free and Longhorn at Free.
- Does Deno or Longhorn run on more platforms?
- Deno runs on Web. Longhorn runs on Linux, Kubernetes.
- 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 Longhorn is typically brought in for.
- What can Deno do that Longhorn cannot?
- Longhorn covers Per-volume controllers, Synchronous replication, Snapshots and backups, Volume expansion.
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.
SourceLonghorn: Who do we call when it breaks?
Nobody, unless you buy SUSE Rancher Prime, which includes commercial support for Longhorn. This is the decisive question for production use.
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.
SourceLonghorn: How much capacity does replication cost?
Full copies, so three replicas means three times the raw capacity. Budget accordingly rather than assuming erasure coding efficiency.
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.
SourceLonghorn: Is it suitable for production databases?
For modest workloads yes, but synchronous replication adds write latency and high-transaction databases usually want something faster.
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.
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