Tools: Complete Guide to Validate JSON Like a Pro: Catch Syntax Errors Before They Break Your App

Tools: Complete Guide to Validate JSON Like a Pro: Catch Syntax Errors Before They Break Your App

Validate JSON Like a Pro: Catch Syntax Errors Before They Break Your App

Install json-tidy

Validate Single File

Validate Multiple Files

Integrate into Git Hooks

Integrate into CI/CD

Common JSON Errors json-tidy Catches

Install A single missing comma in a JSON config file can take down your entire application. Here's how to validate JSON files before they cause damage. Have a JSON horror story? Share it in the comments! Templates let you quickly answer FAQs or store snippets for re-use. Hide child comments as well For further actions, you may consider blocking this person and/or reporting abuse

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$ -weight: 500;">npm -weight: 500;">install -g json-tidy-pro -weight: 500;">npm -weight: 500;">install -g json-tidy-pro -weight: 500;">npm -weight: 500;">install -g json-tidy-pro json-tidy validate config.json # ✅ Valid JSON! json-tidy validate config.json # ✅ Valid JSON! json-tidy validate config.json # ✅ Valid JSON! json-tidy validate config/*.json # ✅ config.json: Valid # ❌ database.json: Invalid - missing comma at line 42 # ✅ routes.json: Valid json-tidy validate config/*.json # ✅ config.json: Valid # ❌ database.json: Invalid - missing comma at line 42 # ✅ routes.json: Valid json-tidy validate config/*.json # ✅ config.json: Valid # ❌ database.json: Invalid - missing comma at line 42 # ✅ routes.json: Valid # .-weight: 500;">git/hooks/pre-commit #!/bin/bash npx json-tidy validate config/*.json if [ $? -ne 0 ]; then echo "❌ Invalid JSON detected. Fix before committing." exit 1 fi # .-weight: 500;">git/hooks/pre-commit #!/bin/bash npx json-tidy validate config/*.json if [ $? -ne 0 ]; then echo "❌ Invalid JSON detected. Fix before committing." exit 1 fi # .-weight: 500;">git/hooks/pre-commit #!/bin/bash npx json-tidy validate config/*.json if [ $? -ne 0 ]; then echo "❌ Invalid JSON detected. Fix before committing." exit 1 fi # .github/workflows/validate.yml name: Validate JSON on: [push] jobs: validate: runs-on: ubuntu-latest steps: - uses: actions/checkout@v3 - run: npx json-tidy validate ./config/**/*.json # .github/workflows/validate.yml name: Validate JSON on: [push] jobs: validate: runs-on: ubuntu-latest steps: - uses: actions/checkout@v3 - run: npx json-tidy validate ./config/**/*.json # .github/workflows/validate.yml name: Validate JSON on: [push] jobs: validate: runs-on: ubuntu-latest steps: - uses: actions/checkout@v3 - run: npx json-tidy validate ./config/**/*.json -weight: 500;">npm -weight: 500;">install -g json-tidy-pro -weight: 500;">npm -weight: 500;">install -g json-tidy-pro -weight: 500;">npm -weight: 500;">install -g json-tidy-pro - Missing commas in objects and arrays - Trailing commas (not allowed in strict JSON) - Unquoted property names - Single quotes instead of double quotes - Comments (not valid in JSON) - Extra trailing content