package.json Dependency Health Checker
Analyze package.json for dependency and script health, then apply targeted fixes to improve reproducibility, safety, and maintainability.
Analyze package.json dependency strategy, supply-chain risk markers, and project-health settings with fix-ready recommendations.
Why Use This package.json Dependency Health Checker?
Dependency Risk Scoring
Scores package.json quality by checking version determinism, dependency freshness signals, and script risk posture.
Actionable Fix Suggestions
Generates practical fixes for unpinned versions, missing scripts, missing engines fields, and package-manager pinning.
Project Health Coverage
Reviews dependencies, devDependencies, peerDependencies, optionalDependencies, and script hardening concerns.
Local Browser Analysis
All checks run in-browser for privacy. Your package.json content is never uploaded to a server.
Popular Use Cases
Pre-Release Dependency Reviews
Audit package.json changes in pull requests before dependency updates reach production.
Supply-Chain Script Hardening
Detect risky pipe-to-shell and unbounded execution patterns in scripts used by CI pipelines.
Monorepo Baseline Alignment
Standardize package-manager, engines, and dependency constraints across teams and packages.
Validation-Loop Testing
Test success, failure, auto-fix, and retry-limit diagnostics with reproducible sample scenarios.
Open Source Project Hygiene
Verify that published packages include required metadata fields like repository, license, and bugs before releasing to npm.
Onboarding New Repositories
Quickly assess the health of an unfamiliar codebase by identifying outdated dependencies, missing lockfiles, and unsafe version ranges at a glance.
About package.json Dependency Health Checker
Dependency and Scripting Posture Analysis
This analyzer helps you assess dependency and scripting posture in package.json files for reproducibility, safety, and long-term maintainability.
Fix Suggestions and Anti-Pattern Detection
It highlights versioning anti-patterns, deprecated packages, risky scripts, missing project-health fields, and provides clear fix suggestions to improve dependency quality quickly.
Reproducibility and Lockfile Signals
The checker flags missing or mismatched lockfiles, absent engines fields, and open version ranges that can cause non-deterministic installs across developer machines and CI environments.
Privacy and Browser-Only Processing
Your package.json content is analyzed entirely in the browser. No file contents are uploaded to external servers, making this tool safe for internal and proprietary project configurations.
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Frequently Asked Questions
It analyzes dependency version determinism, deprecated package usage, risky scripts, and project-health settings such as engines and packageManager.
Yes. It flags risky script patterns such as remote pipe-to-shell behavior and unbounded @latest execution.
Yes. It detects pass, fail, auto-fix, and retry-limit markers from diagnostics text in iterative loop testing.
Yes. All analysis runs in-browser and no package.json content is uploaded.
Yes. It flags dependencies using range specifiers like ^ and ~ that can resolve to different versions across installs, and recommends exact pinning for reproducible builds.
Yes. It checks for the engines and packageManager fields and flags their absence as a health risk, since these fields help enforce consistent runtime and toolchain versions across teams.
Yes. It is 100% free with no account or signup required.