Deployment Readiness Checker
Paste your package.json, get a production-readiness score
Deployment Readiness Checker launched on August 3, 2026 with 3 votes, #2,940 of 23,274 launches that month and more than 50% of that year's launches.
What it does
Paste your package.json, get an instant production-readiness score. Framework-aware fixes, context-aware secret detection, 100% in your browser — safe to paste a realenv. No prompt, no signup, no black box.
Free, in-browser Deployment Readiness Checker. Paste your package.json (and optional .env, .gitignore) for a scored production-readiness report with fixes.
Paste your package.json (plus optional .env , .env.example and .gitignore ) for a scored, per-category production-readiness report with framework-aware fixes. The Deployment Readiness Checker scores a Node.js project for production. Paste your package.json to start, then add your .env , .env.example and .gitignore for deeper checks. It detects your framework, gives context-aware advice such as where to add a health-check endpoint, and flags leaked secrets by where they appear — all in your browser, with nothing uploaded and no network calls. The score answers one question — will this deploy and stay up? — so only findings that affect that are counted. Every check is one of three tiers: Only…from jsondevtools.org
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