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Free Socket alternatives: 4 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

4 of the 6 Socket alternatives we track can be used for free (free, open source, or with a free plan). Snyk, Aikido Security and Trivy rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1Snyk logoSnykFree plan + paid$25 a month, billed monthly (Team)NoWeb, Windows, macOS +14 of 468.8
2Aikido Security logoAikido SecurityFree plan + paid$4,000 per assessment (typical)NoWeb6 of 664.8
3Trivy logoTrivyOpen source—YesLinux, macOS, Windows3 of 357.5
4Semgrep logoSemgrepFree plan + paid$30 per contributor/month (Teams)YesWeb, Windows, macOS +15 of 555.9
  1. Snyk logo

    1. SnykTop pick

    Best for: Development teams that want dependency, code and container scanning in one place

    Free plan + paidWeb, Windows, macOS, Linux

    68.8

    score / 100

    Why switch from Socket

    Broader developer security platform covering code, containers and IaC as well as dependencies.

    Pros

    • Covers dependencies, code, containers and IaC together
    • Works in the IDE, CLI, pull requests and CI
    • Free plan includes every scanner

    Cons

    • Free plan has tight monthly test limits, such as 100 code tests
    • Team plan caps at 10 developers before enterprise pricing
    • Hosted service only, no self-managed edition on standard plans
    Visit Snyk Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Snyk a good Socket alternative?

    Verified facts

    4 of 4 verified
    Free plan
    Yes, $0 a month
    Checked Nov 8, 2026snyk.io(opens source in a new tab)
    Starting price
    $25 a month, billed monthly (Team)
    Checked Nov 8, 2026snyk.io(opens source in a new tab)
    Free code test limit
    100 tests/month
    Checked Nov 8, 2026snyk.io(opens source in a new tab)
    Integrations
    IDE, CLI, source code managers
    Checked Nov 8, 2026snyk.io(opens source in a new tab)
  2. Aikido Security logo

    2. Aikido Security

    Best for: Startups and mid-size teams that want one affordable AppSec tool instead of five scanners

    Free plan + paidWeb

    64.8

    score / 100

    Why switch from Socket

    Adds package malware detection to a wider SAST, cloud and container scanning bundle.

    Pros

    • One dashboard for SCA, SAST, secrets, IaC, containers and cloud
    • Free-forever plan for up to two users
    • Auto-triage cuts false positives before they reach developers
    • On-prem scanning option keeps source code local

    Cons

    • Free plan leaves out AutoFix, AutoTriage and code quality checks
    • Breadth means individual scanners may be shallower than specialist tools
    • Pentests and AI SAST are credit-based or quoted separately
    Visit Aikido Security Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Aikido Security a good Socket alternative?

    Verified facts

    6 of 6 verified
    Free plan
    Yes, up to 2 users
    Checked Nov 8, 2026aikido.dev(opens source in a new tab)
    On-prem scanning
    Yes (paid plans)
    Checked Nov 8, 2026aikido.dev(opens source in a new tab)
    Founded
    2022
    Checked Nov 8, 2026aikido.dev(opens source in a new tab)
    Headquarters
    Ghent, Belgium
    Checked Nov 8, 2026aikido.dev(opens source in a new tab)
    Compliance
    SOC 2, ISO 27001
    Checked Nov 8, 2026aikido.dev(opens source in a new tab)
    Pentest price
    $4,000 per assessment (typical)
    Checked Nov 8, 2026aikido.dev(opens source in a new tab)
  3. Trivy logo

    3. Trivy

    Best for: DevOps and platform teams wanting a free, all-in-one scanner for images, IaC and Kubernetes in CI

    Open sourceLinux, macOS, Windows

    57.5

    score / 100

    Why switch from Socket

    Free open-source scanner for dependency CVEs and containers that you run yourself.

    Pros

    • Scans images, repos, filesystems, Kubernetes and IaC with one binary
    • Free and Apache-2.0 licensed with an active project
    • Generates SBOMs as well as vulnerability reports
    • Easy to drop into CI pipelines

    Cons

    • No hosted dashboard or team reporting without Aqua's paid platform
    • Does not open automatic fix pull requests like some SaaS tools
    • Command-line only, so less friendly for non-engineers
    Visit Trivy Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Trivy a good Socket alternative?

    Verified facts

    3 of 3 verified
    License
    Apache-2.0
    Checked Nov 4, 2026github.com(opens source in a new tab)
    Scan targets
    Containers, Kubernetes, code repos, clouds
    Checked Nov 4, 2026github.com(opens source in a new tab)
    SBOM generation
    Yes
    Checked Nov 4, 2026github.com(opens source in a new tab)
  4. Semgrep logo

    4. Semgrep

    Best for: Teams that want fast CI scans and easy-to-write custom rules

    Free plan + paidOpen sourceWeb, Windows, macOS, Linux

    55.9

    score / 100

    Why switch from Socket

    Combines SAST with a supply chain product that checks reachability of vulnerable code.

    Pros

    • Rules are written in code-like patterns that are easy to read
    • Open-source CLI runs anywhere, including locally
    • Free edition covers small teams on the hosted platform
    • SAST, dependency and secrets scanning in one product

    Cons

    • Cross-file analysis and Pro rules need the commercial engine
    • Free edition is capped at 10 contributors
    • Paid products are billed separately per contributor
    Visit Semgrep Details and reviews
    How this score is calculated
    Editorial fit ×0.357
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Semgrep a good Socket alternative?

    Verified facts

    5 of 5 verified
    Free plan
    Yes, up to 10 contributors
    Checked Nov 8, 2026semgrep.dev(opens source in a new tab)
    Starting price
    $30 per contributor/month (Teams)
    Checked Nov 8, 2026semgrep.dev(opens source in a new tab)
    License
    LGPL-2.1
    Checked Nov 1, 2026github.com(opens source in a new tab)
    Languages
    35+
    Checked Nov 8, 2026semgrep.dev(opens source in a new tab)
    Secrets add-on
    $15 per contributor/month
    Checked Nov 8, 2026semgrep.dev(opens source in a new tab)