AppBreakup
Submit an app

Free Mend.io alternatives: 4 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

4 of the 6 Mend.io alternatives we track can be used for free (free, open source, or with a free plan). SonarQube, Semgrep and CodeQL rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1SonarQube logoSonarQubeFree plan + paid$34/month (Team plan, up to 100k LOC)YesWeb, Self-hosted4 of 479.8
2Semgrep logoSemgrepFree plan + paid$30 per contributor/month (Teams)YesWeb, Windows, macOS +15 of 568.8
3CodeQL logoCodeQLFree plan + paid—NoWindows, macOS, Linux5 of 561.8
4Snyk logoSnykFree plan + paid$25 a month, billed monthly (Team)NoWeb, Windows, macOS +14 of 459.4
  1. SonarQube logo

    1. SonarQubeTop pick

    Best for: Teams that want quality gates for code quality and security on every pull request

    Free plan + paidOpen sourceSelf-hostableWeb, Self-hosted

    79.8

    score / 100

    Why switch from Mend.io

    Code quality and security analysis you can self-host, with a free Community Build.

    Pros

    • Combines code quality and security in one report
    • Choice of cloud service or self-hosted server
    • Free IDE extension for instant feedback
    • Free for public open-source projects

    Cons

    • Pricing scales with lines of code, which gets costly for large codebases
    • Free private tier is limited to 50k lines of code
    • Advanced security features are kept for higher tiers
    Visit SonarQube Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.15100
    Freshness ×0.15100
    Votes ×0.150

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

    Is SonarQube a good Mend.io alternative?

    Verified facts

    4 of 4 verified
    Free plan
    Private projects up to 50k LOC
    Checked Nov 8, 2026sonarsource.com(opens source in a new tab)
    Starting price
    $34/month (Team plan, up to 100k LOC)
    Checked Nov 8, 2026sonarsource.com(opens source in a new tab)
    Free trial
    14 days (Team plan)
    Checked Nov 8, 2026sonarsource.com(opens source in a new tab)
    License
    LGPL-3.0
    Checked Oct 30, 2026github.com(opens source in a new tab)
  2. Semgrep logo

    2. Semgrep

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

    Free plan + paidOpen sourceWeb, Windows, macOS, Linux

    68.8

    score / 100

    Why switch from Mend.io

    Developer-friendly scanning with an open-source engine, plus supply chain and secrets products.

    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 ×0.3100
    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 Semgrep a good Mend.io 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)
  3. CodeQL logo

    3. CodeQL

    Best for: Teams on GitHub and security researchers who want deep, query-based vulnerability hunting

    Free plan + paidWindows, macOS, Linux

    61.8

    score / 100

    Why switch from Mend.io

    GitHub's semantic code analysis, free for public repositories and built into GitHub code scanning.

    Pros

    • Deep data-flow and taint analysis across a whole codebase
    • Custom queries let you find every variant of a known bug
    • Built into GitHub code scanning with alerts on pull requests
    • Free for public repositories and research

    Cons

    • Private, commercial use requires a paid GitHub Code Security licence
    • QL query language takes real effort to learn
    • Compiled languages need a working build to create the database
    Visit CodeQL Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    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 CodeQL a good Mend.io alternative?

    Verified facts

    5 of 5 verified
    Free for open source
    Yes, and for research
    Checked Nov 8, 2026codeql.github.com(opens source in a new tab)
    Query library license
    MIT
    Checked Oct 29, 2026github.com(opens source in a new tab)
    Private repositories
    Requires GitHub Code Security
    Checked Nov 8, 2026docs.github.com(opens source in a new tab)
    Languages
    Includes Java, Kotlin, Python, Rust, Swift, TypeScript
    Checked Nov 8, 2026codeql.github.com(opens source in a new tab)
    VS Code extension
    Yes
    Checked Nov 8, 2026codeql.github.com(opens source in a new tab)
  4. Snyk logo

    4. Snyk

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

    Free plan + paidWeb, Windows, macOS, Linux

    59.4

    score / 100

    Why switch from Mend.io

    Developer-first dependency, container and code scanning with fix pull requests and a free tier.

    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 ×0.369
    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 Mend.io 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)