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Developer Tools · head to head

Nixpacks vs Snyk

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
Snyk logo

Snyk

Cybersecurity

Developer-first security platform

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • 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.; Snyk free plan has strict test limits across all modules: Open Source (200), Code (100), Infrastructure as Code (300), Container (100) tests per month
  • They diverge on capability: Nixpacks covers Automatic language detection, Snyk covers Open source security.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Nixpacks and Snyk actually diverge.

Attributes where Nixpacks and Snyk differ
AttributeNixpacksSnyk
Pricing modelOpen source, no licence feefreemium
PlatformsLinux, macOS, CLI, DockerWeb, CLI, IDE integrations
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2015

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 Nixpacks

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

Only in Snyk

  • Open source security
  • Code security (SAST)
  • Container security
  • IaC security
  • License compliance
  • Fix PRs
  • Priority scoring
  • Developer IDE integration

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 Snyk
  • Producing container images from a polyglot monorepo where nobody wants to own several Dockerfilesnot Snyk
  • Reproducing an existing Railway build locally while planning a migration to Railpacknot Snyk
  • Comparing what a Nix based builder does differently from a buildpack before choosing a successornot Snyk

Snyk

  • Vulnerability scanningnot Nixpacks
  • Application securitynot Nixpacks
  • Infrastructure as Code securitynot Nixpacks
  • Container securitynot 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.

Snyk

  • Free plan has strict test limits across all modules: Open Source (200), Code (100), Infrastructure as Code (300), Container (100) tests per month
  • Free and Team plans count only contributing developers making commits within 90 days; public contributions do not count
  • Enterprise plan requires custom pricing and sales contact

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

Snyk

Free
  • FreeFree
    • SCA scanning
    • SAST scanning
    • IaC and Container scanning
  • Team$25/month
    • 1000 Code tests
    • 100 projects
    • Jira integration
  • Ignite$105/month
    • Unlimited tests
    • Unlimited projects
    • Custom security rules
  • Enterprise$null/custom
    • Zero-day prevention
    • Unified AppSec control
    • Full SDLC automation

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 Snyk if

  • You need open source security.
  • You want to start without paying.
  • You work on Web, CLI, IDE integrations.
  • You also want code security (sast).
Snyk review

Questions people ask

Is Nixpacks or Snyk better?
Neither clearly leads. Nixpacks starts at Free and Snyk at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Nixpacks or Snyk?
Nixpacks starts at Free and Snyk at Free.
Does Nixpacks or Snyk run on more platforms?
Nixpacks runs on Linux, macOS, CLI, Docker. Snyk runs on Web, CLI, IDE integrations.
Can I use Nixpacks for free?
Both have a free tier, so you can try either at no cost before committing.
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 Snyk is typically brought in for.
What can Nixpacks do that Snyk cannot?
Nixpacks covers Automatic language detection, No Dockerfile required, Nix toolchains, Configuration escape hatches. Snyk covers Open source security, Code security (SAST), Container security, IaC security.

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.

Snyk: How much does Snyk cost?

Snyk offers a free plan with limited tests, Team plan at $25/month per contributing developer, Ignite at $1260/year, and custom Enterprise pricing. Contributing developers are those who made commits to private repos within the last 90 days.

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.

Snyk: What does Snyk's Team plan include?

The Team plan at $25/month includes 1000 Code tests, up to 100 projects, Jira integration, next business day support, and all features from the free plan including SCA, SAST, IaC and Container scanning.

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.

Snyk: Is there a free version of Snyk?

Yes, Snyk offers a free plan with full platform access including SCA, SAST, IaC and Container scanning. The free tier includes 200 Open Source tests, 100 Code tests, 300 IaC tests, 100 Container tests, and up to 5 projects.

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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