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Developer Tools · head to head

Nixpacks vs Tenable

Nixpacks logo

Nixpacks

Developer Tools

Build system that turns a source directory into an OCI image, now in maintenance mode

From
Free
Free plan
Yes
Full reviewWebsite
Tenable logo

Tenable

Cybersecurity

AI-powered exposure management platform for unified security visibility

From
$3500/year
Free plan
No
Full reviewWebsite

The short version

  • Only Nixpacks has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; Tenable pricing starts at $3500/year for Tenable One VM, expensive for small organizations
  • They diverge on capability: Nixpacks covers Automatic language detection, Tenable covers Unified attack surface mapping.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Nixpacks and Tenable actually diverge.

Attributes where Nixpacks and Tenable differ
AttributeNixpacksTenable
Starting priceFree$3500/year
Pricing modelOpen source, no licence feesubscription
Free tierYesNo
PlatformsLinux, macOS, CLI, DockerCloud, Web
CategoryDeveloper ToolsCybersecurity

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 Nixpacks

  • Automatic language detection
  • No Dockerfile required
  • Nix toolchains
  • Configuration escape hatches
  • Docker layer caching

Only in Tenable

  • Unified attack surface mapping
  • Exposure intelligence enrichment
  • Tenable Hexa AI orchestration
  • Cloud Exposure (CNAPP)
  • OT Exposure
  • Identity Exposure
  • Vulnerability Management
  • Attack Surface Management

What people use each for

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

Nixpacks

  • Understanding the build behaviour of a platform that adopted Nixpacks before it was frozennot Tenable
  • Producing container images from a polyglot monorepo where nobody wants to own several Dockerfilesnot Tenable
  • Reproducing an existing Railway build locally while planning a migration to Railpacknot Tenable
  • Comparing what a Nix based builder does differently from a buildpack before choosing a successornot Tenable

Tenable

  • Comprehensive vulnerability scanning for enterprise networksnot Nixpacks
  • Cloud security monitoring and compliance for AWS, Azure, GCPnot Nixpacks
  • Identity and access management risk assessmentnot Nixpacks
  • Operational technology security for industrial systemsnot Nixpacks
  • Attack surface management for third-party risknot Nixpacks

Where each one falls short

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

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.

Tenable

  • Pricing starts at $3500/year for Tenable One VM, expensive for small organizations
  • Many enterprise features require custom quote and sales engagement
  • Cloud Exposure, OT Exposure, and other modules have no published pricing
  • Multi-year contracts common, limiting flexibility
  • Setup and configuration complexity for enterprise deployments

Pricing, plan by plan

Nixpacks

Free
  • NixpacksFree
    • MIT licensed, no usage limits
    • No commercial edition and no support contract
    • In maintenance mode, superseded by Railpack

Tenable

$3500/year
  • Tenable One Vulnerability Management$3500/year
    • Per 100 assets
    • Multi-year discounts available
  • Tenable One Web App Scanning$3578/year
    • Per 5 FQDNs
    • Annual subscription
  • Nessus Professional$4790/year
    • Vulnerability scanning
    • Multi-year discounts available
    • Optional advanced support: $400/year
  • Nessus Expert$6790/year
    • Advanced vulnerability scanning
    • Multi-year discounts available
    • Optional advanced support: $400/year

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.
Nixpacks review

Choose Tenable if

  • You need unified attack surface mapping.
  • You work on Cloud, Web.
  • You also want exposure intelligence enrichment.
Tenable review

Questions people ask

Is Nixpacks or Tenable better?
Neither clearly leads. Nixpacks starts at Free and Tenable at $3500/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Nixpacks or Tenable?
Nixpacks has a free tier; the other does not. Paid plans start at Free for Nixpacks and $3500/year for Tenable.
Does Nixpacks or Tenable run on more platforms?
Nixpacks runs on Linux, macOS, CLI, Docker. Tenable runs on Cloud, Web.
Can I use Nixpacks for free?
Yes. Nixpacks has a free tier, so you can try it without paying. Tenable starts at $3500/year.
What is Nixpacks best used for?
Nixpacks is most often used for understanding the build behaviour of a platform that adopted nixpacks before it was frozen, producing container images from a polyglot monorepo where nobody wants to own several dockerfiles, reproducing an existing railway build locally while planning a migration to railpack, comparing what a nix based builder does differently from a buildpack before choosing a successor. Of those, understanding the build behaviour of a platform that adopted nixpacks before it was frozen and producing container images from a polyglot monorepo where nobody wants to own several dockerfiles are not what Tenable is typically brought in for.
What can Nixpacks do that Tenable cannot?
Nixpacks covers Automatic language detection, No Dockerfile required, Nix toolchains, Configuration escape hatches. Tenable covers Unified attack surface mapping, Exposure intelligence enrichment, Tenable Hexa AI orchestration, Cloud Exposure (CNAPP).

Answered from the vendors’ own pages

Nixpacks: 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.

Tenable: How is Tenable One pricing structured?

Tenable One Vulnerability Management costs $3500/year per 100 assets. Web App Scanning is $3578/year per 5 FQDNs. Multi-year discounts are available.

Source
Nixpacks: 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.

Tenable: What is the difference between Nessus Professional and Nessus Expert?

Nessus Professional costs $4790/year and provides core vulnerability scanning. Nessus Expert costs $6790/year and offers advanced scanning capabilities.

Source
Nixpacks: What replaces it?

Railpack, also from Railway and also MIT licensed, rebuilt as a BuildKit custom frontend for finer grained caching and parallel steps.

Tenable: Are custom support and training available for Tenable?

Yes. Optional advanced support is available for $400/year. Training courses range from $275-$385/year.

Source
Nixpacks: 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.

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