Instead of Skylos
Skylos alternatives
Skylos scans for security regressions, exposed secrets, dead code, quality problems, and mistakes introduced by AI. Its CLI works locally without an account and supports CI checks; a free VS Code extension adds inline diagnostics and optional AI verification. It covers many languages plus deployment configuration, although analysis depth varies. Cloud options include GitHub pull request workflows, OIDC identity, and optional Slack or Discord notifications.
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Snyk Open Source
Free plan APILinuxMac+2Open-source dependency vulnerabilities and license governance — Snyk focuses on dependency vulnerabilities and license compliance, with continuous monitoring and automated upgrade pull requests rather than Skylos’s broader source analysis.
Free plan · paid from $25/mo Visit site - 2
Horusec
Free plan APIExtensionLinux+4Free, configurable multi-language security analysis — Horusec analyzes 18 languages with 20 security tools and searches Git history for leaked keys, while Skylos adds AI-mistake and code-quality checks.
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MobSF
Free plan AndroidAPIiPhone+3Mobile app security and penetration testing — MobSF tests Android, iOS, and Windows app packages with static and sandboxed dynamic analysis, unlike Skylos’s general code-focused analysis.
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Puma Scan
Free plan LinuxMacSelf-hosted+1C# security checks inside Visual Studio — Puma Scan reports C# vulnerabilities as Visual Studio compiler warnings in real time, while Skylos covers more languages and code-quality issues.
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Pysa
Free plan ExtensionLinuxMac+2Python taint analysis with configurable models — Pysa tracks tainted data from sources to sinks in Python and supports custom models, whereas Skylos analyzes a broader language set and issue types.
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Semgrep Code
Free plan Open source APIExtensionLinux+4Code vulnerability detection with AI-assisted analysis — Semgrep Code combines deterministic SAST with AI analysis and provides tailored pull-request remediation, while Skylos also checks secrets, dead code, and quality issues.
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Flawfinder
Free plan LinuxMacSelf-hosted+1Free C and C++ source risk scanning — Flawfinder scans C/C++ text against a built-in risky-function database and ranks hits, unlike Skylos’s broader language and issue coverage.
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OpenGrep
Free plan Open source APILinuxMac+2 - 9
Bearer
Free plan LinuxMac - 10
GitHub CodeQL
Free plan ExtensionLinuxMac+3 - 11
Brakeman
Free plan LinuxSelf-hosted7.3 Visit site - 12
Dawnscanner
Free plan LinuxSelf-hosted - 13
Microsoft DevSkim
Free plan APIExtensionLinux+3 - 14
PVS-Studio
Free plan LinuxMacWindows - 15
CodeSonar
Free trial LinuxSelf-hostedWeb+1 - 16
Black Duck Coverity
Paid LinuxMacSelf-hosted+2 - 17
Mend SAST
Paid LinuxMacSelf-hosted+2 - 18
HCL AppScan Source
Paid LinuxSelf-hostedWindows - 19
Snyk Code
Free plan Web - 20
Checkmarx SAST
Paid LinuxWebWindows - 21
Klocwork
Paid LinuxWebWindows - 22
njsscan
Paid LinuxMac - 23
Veracode Static Analysis
Paid Web
Its free plan includes local scans and one Cloud project with 10 stored scans and seven days of history. One-time credit packs start at $9, while Enterprise pricing is custom. Cloud capacity and history vary by plan, and uploaded reports may include code snippets and file details. Skylos also does not claim SOC 2, ISO 27001, or CSA STAR certification. When comparing alternatives, consider whether your priority is dependency and license risk, mobile app testing, deeper focus on one language, or a different balance of local analysis, CI integration, and cloud features.
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