Cybersecurity · head to head
Socket vs Spacelift
Socket
Cybersecurity
Supply chain security platform detecting and blocking malicious dependencies
- From
- Free
- Free plan
- Yes
Spacelift
Developer Tools
Infrastructure-as-code orchestration for Terraform, OpenTofu, Pulumi and Kubernetes
- From
- Free
- Free plan
- Yes
The short version
- Each has a real cost: Socket team plan requires minimum 5-developer commitment, expensive for small teams; Spacelift users are unlimited and private workers are metered, so deployment concurrency rather than headcount drives the bill, which inverts how most engineering budgets are built and is easy to under-forecast.
- They diverge on capability: Socket covers Malware detection, Spacelift covers Multi-tool orchestration.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Socket and Spacelift 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 Socket
- Malware detection
- Automatic blocking
- AI behavior analysis
- Reachability analysis
- Slack integration
- SBOM support
- SAML SSO
- GitHub Actions scanning
Only in Spacelift
- Multi-tool orchestration
- Policy as code
- Private workers
- Spaces
- Blueprints
- Drift detection
What people use each for
The jobs each tool is most often brought in to do.
Socket
- Blocking zero-day malware attacks in JavaScript dependenciesnot Spacelift
- Managing CVE false positives with precomputed reachability analysisnot Spacelift
- Securing Python and Go supply chains at scalenot Spacelift
- Automating compliance requirements for regulated industriesnot Spacelift
- Real-time threat notifications via Slack integrationnot Spacelift
Spacelift
- Platform teams running infrastructure changes through approval gates rather than through application CInot Socket
- Organisations standardising Terraform and OpenTofu across many teams with policy enforcementnot Socket
- Estates needing private runners so cloud credentials never leave the networknot Socket
- Teams wanting drift detection and reconciliation rather than plan-time checks alonenot Socket
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Socket
- Team plan requires minimum 5-developer commitment, expensive for small teams
- Business plan $50/dev/month becomes costly for teams exceeding 20 members
- Enterprise pricing requires custom consultation with no transparent pricing
- Free plan limited to individual developers without team collaboration
- Reachability analysis improvement (90% false positive reduction) only on Enterprise
Spacelift
- Users are unlimited and private workers are metered, so deployment concurrency rather than headcount drives the bill, which inverts how most engineering budgets are built and is easy to under-forecast.
- There is no affordable paid entry point. The free tier stops at two users and the next tier is a five-figure commitment with nothing in between.
- Three of the five tiers are quote-only, so a shortlist cannot be costed without entering a sales process with each vendor on it.
- The self-hosted build lags the hosted one, has no public worker pool and lacks the Azure and Google Cloud integrations available in the SaaS product, with OIDC federation offered as the workaround.
- Stacks, Rego policies, Blueprints, Spaces and Spacelift-managed state are proprietary constructs, so leaving means rebuilding the orchestration layer rather than pointing it at a different runner.
Pricing, plan by plan
Socket
Free- FreeFree
- For individual developers
- Detects 70+ risk types
- Blocks malicious dependencies automatically
- Team$25/month
- Per developer on minimum 5 developers
- Precomputed reachability analysis cuts 60% false positives
- Slack alerts for threats
- Business$50/month
- Per developer on minimum 20 developers
- All Team features
- Compliance integrations with Vanta
- Enterprise$undefined/custom
- Function-level reachability eliminates up to 90% irrelevant CVEs
- Multi-repository system support
- Named account manager
Spacelift
Free- FreeFree
- Two users
- Public workers only
- No private workers
- Starter Plus$undefined/year
- Unlimited users
- Two public workers
- One to two private workers
- Business$undefined/year
- Unlimited users
- Three private workers
- Quoted
- Enterprise$undefined/year
- Unlimited users
- Five to thirty private workers
- Self-hosted option
Which should you pick?
Choose Socket if
- You need malware detection.
- You want to start without paying.
- You work on Web, CLI, GitHub.
- You also want automatic blocking.
Choose Spacelift if
- You need multi-tool orchestration.
- You want to start without paying.
- You work on Web, Self-hosted, Cloud.
- You also want policy as code.
Questions people ask
- Is Socket or Spacelift better?
- Neither clearly leads. Socket starts at Free and Spacelift at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Socket or Spacelift?
- Socket starts at Free and Spacelift at Free.
- Does Socket or Spacelift run on more platforms?
- Socket runs on Web, CLI, GitHub. Spacelift runs on Web, Self-hosted, Cloud.
- Can I use Socket for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Socket best used for?
- Socket is most often used for blocking zero-day malware attacks in javascript dependencies, managing cve false positives with precomputed reachability analysis, securing python and go supply chains at scale, automating compliance requirements for regulated industries. Of those, blocking zero-day malware attacks in javascript dependencies and managing cve false positives with precomputed reachability analysis are not what Spacelift is typically brought in for.
- What can Socket do that Spacelift cannot?
- Socket covers Malware detection, Automatic blocking, AI behavior analysis, Reachability analysis. Spacelift covers Multi-tool orchestration, Policy as code, Private workers, Spaces.
Answered from the vendors’ own pages
Socket: How many zero-day attacks does Socket detect?
Socket detects over 100 zero-day attacks weekly across JavaScript, Python, and Go ecosystems.
SourceSpacelift: How is Spacelift priced?
By tier and by private worker count rather than per user. Users are unlimited on every paid plan. The published figure on the pricing page carries no period label, and the FAQ describes the tier as an annual subscription, so confirm the period in writing.
Socket: What is precomputed reachability analysis?
Socket's precomputed reachability analysis cuts CVE false positives by 60% automatically on Team plans, and up to 90% on Enterprise plans through function-level analysis.
SourceSpacelift: Does it support OpenTofu?
Yes, and Spacelift sponsors the OpenTofu project, which is a substantive hedge for anyone avoiding Terraform under the Business Source Licence.
Socket: Is there a discount for annual billing?
Yes. Socket offers a 20% discount for annual commitments across all subscription tiers.
SourceSpacelift: Is there a self-hosted version?
Yes, described as carrying Enterprise functionality, but it is priced on request and lags the hosted product on cloud integrations.
Spacelift: Why not just use the CI system we already have?
That is the real comparison. General purpose CI handles state, drift, approval gates and concurrency control for infrastructure poorly, and whether that is worth a five-figure floor depends on how much infrastructure change your organisation actually ships.
Spacelift: What happens to our pipelines if we leave?
They do not port. Rego policies, Blueprints, Spaces and managed state are Spacelift constructs and the orchestration has to be rebuilt elsewhere.
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