Developer Tools · head to head
Deno vs Nixpacks
Deno
Developer Tools
A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in
- From
- Free
- Rated
- -
Nixpacks
Developer Tools
Build system that turns a source directory into an OCI image, now in maintenance mode
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Deno egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications; Nixpacks the project is in maintenance mode with no commits on the default branch since May 2026 and no release since October 2025, so support for new language versions arrives only if someone forks it.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Deno and Nixpacks actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Developer Tools).
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 Nixpacks does not also cover.
Only in Nixpacks
- Automatic language detection
- No Dockerfile required
- Nix toolchains
- Configuration escape hatches
- Docker layer caching
What people use each for
The jobs each tool is most often brought in to do.
Deno
- Running TypeScript natively without transpilation overheadnot Nixpacks
- Migrating Node.js applications to secure-by-default runtimenot Nixpacks
- Deploying edge functions and serverless containers seamlesslynot Nixpacks
- Consolidating developer tools into single binarynot Nixpacks
Nixpacks
- Understanding the build behaviour of a platform that adopted Nixpacks before it was frozennot Deno
- Producing container images from a polyglot monorepo where nobody wants to own several Dockerfilesnot Deno
- Reproducing an existing Railway build locally while planning a migration to Railpacknot Deno
- Comparing what a Nix based builder does differently from a buildpack before choosing a successornot 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
Nixpacks
- The project is in maintenance mode with no commits on the default branch since May 2026 and no release since October 2025, so support for new language versions arrives only if someone forks it.
- Build determinism is softer than it appears, because providers pin a nixpkgs archive commit and bumping that archive silently moves compiler and runtime versions underneath a build that looks unchanged.
- Caching is limited to Docker layers rather than a content addressed graph, so a small change early in the build invalidates everything after it, which is exactly the limitation Railpack was rewritten to fix.
- Images carry Nix store layers and come out larger than an equivalent tuned Dockerfile or buildpack output, which costs registry storage and slows cold pulls on scale-out.
- There is no specification, no vendor neutral governance and no third party provider ecosystem, so a single company was able to redirect strategy and leave every downstream user with a frozen build tool.
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
Nixpacks
Free- NixpacksFree
- MIT licensed, no usage limits
- No commercial edition and no support contract
- In maintenance mode, superseded by Railpack
Which should you pick?
Choose Nixpacks if
- You need automatic language detection.
- You want to start without paying.
- You work on Linux, macOS, CLI, Docker.
- You also want no dockerfile required.
Questions people ask
- Is Deno or Nixpacks better?
- Neither clearly leads. Deno starts at Free and Nixpacks at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Deno or Nixpacks?
- Deno starts at Free and Nixpacks at Free.
- Does Deno or Nixpacks run on more platforms?
- Deno runs on Web. Nixpacks runs on Linux, macOS, CLI, Docker.
- 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 Nixpacks is typically brought in for.
- What can Deno do that Nixpacks cannot?
- Nixpacks covers Automatic language detection, No Dockerfile required, Nix toolchains, Configuration escape hatches.
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.
SourceNixpacks: Should I start a new project on Nixpacks?
No. The documentation and README both say it is in maintenance mode and recommend Railpack. Choose Railpack, Cloud Native Buildpacks or a Dockerfile instead.
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.
SourceNixpacks: Will my existing Nixpacks builds stop working?
Not immediately. Pinned nixpkgs archives keep resolving, so builds continue. What you lose is support for new runtime major versions and any fix for a provider bug.
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.
SourceNixpacks: What replaces it?
Railpack, also from Railway and also MIT licensed, rebuilt as a BuildKit custom frontend for finer grained caching and parallel steps.
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.
SourceNixpacks: Is it still open source?
Yes, MIT, and the repository is not archived. Being open source does not help much when nobody is merging provider updates.
Related pages
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