tsconfig Analyzer and Fix Suggestions
Analyze your tsconfig.json for strictness, module resolution, and alias safety, then apply practical fix suggestions with clear priority and rationale.
Recommendations follow TypeScript 5.x options and defaults (up to 5.7, late 2024); check them against the TypeScript version you use.
Why Use This tsconfig Analyzer?
Compiler Option Validation
Checks strictness, module setup, path aliases, and project-level settings in one run.
Fix-Ready Suggestions
Provides concrete property-level suggestions with safe-auto-fix hints and rationale.
JSONC Aware Parsing
Supports tsconfig-style comments and trailing commas for real-world project files.
Private Browser Processing
Analysis runs locally in your browser, so tsconfig content never leaves your device.
Popular Use Cases
Harden Type Safety
Find missing strictness controls that let unsafe typing slip into production code.
Fix Alias Resolution
Catch paths mistakes and deprecated baseUrl settings that cause unresolved imports across environments.
Improve Build Reliability
Identify config combinations that create cross-platform or bundler-resolution drift.
Review PR Config Changes
Use analyzer output during code review to verify tsconfig changes are safe and intentional.
Migrate to Stricter TypeScript
Incrementally enable strict mode flags with confidence by seeing exactly which settings are missing and what each one controls.
Onboarding and Documentation
Generate a clear summary of an unfamiliar project's TypeScript configuration to accelerate onboarding and reduce setup questions.
About tsconfig Analyzer and Fix Suggestions
TypeScript Configuration Quality Evaluation
The tsconfig Analyzer and Fix Suggestions helps you evaluate TypeScript configuration quality using practical checks for strict mode coverage, module strategy, alias safety, and maintainability signals.
Diagnostics and Suggestions
It accepts tsconfig JSONC input, returns prioritized diagnostics, and provides property-level suggestions.
Module Strategy and Path Alias Validation
The analyzer checks module resolution strategy compatibility, checks paths aliases, flags baseUrl (deprecated in TypeScript 6.0, removed in 7.0), and flags combinations that commonly break bundler or runtime resolution.
Privacy and Browser-Only Processing
Your tsconfig content is analyzed entirely in the browser. No configuration data is sent to external servers, making this tool safe for internal codebases and proprietary project setups.
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Frequently Asked Questions
Yes. It parses JSONC-style comments and trailing commas commonly used in tsconfig files.
No. It suggests safe and explicit fixes in-browser. You review and apply changes manually.
Yes. It highlights strictness gaps and provides focused recommendation paths for safer migration.
Yes. All processing runs locally in your browser without uploading configuration data.
It checks for modern module resolution settings like bundler and node16 and flags legacy node resolution when combined with ESM output, which can cause runtime import failures.
Yes. It checks that every paths entry maps to an array of paths and flags baseUrl, which TypeScript 6.0 deprecates and 7.0 removes: paths now resolve relative to the tsconfig, so write them as "./src/*". Remember that your bundler or runtime also needs to know the aliases.
Yes. It is 100% free with no account or signup required.