Cloud Infrastructure
IAM Policy JSON Validator
Paste an AWS IAM policy document to validate structure, Effect values, Action formats, Resource ARN patterns, and Condition block syntax. Runs entirely in your browser.
No data is transmitted — everything runs locallyTool
About this tool
IAM Policy JSON Validator
The IAM Policy JSON Validator checks AWS IAM policy documents for structural correctness, valid Effect values, Action format, Resource ARN patterns, and Condition block syntax.
• Validate an IAM policy before attaching it to a role in production
• Debug a policy that's silently not working due to structural errors
• Check NotAction/NotResource inverse logic before deploying
• Validate condition operator syntax for MFA or IP-based restrictions
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FAQ
What does this tool tell you?
The IAM Policy JSON Validator checks AWS IAM policy documents for structural correctness, valid Effect values, Action format, Resource ARN patterns, and Condition block syntax.
What affects the result most?
Validates AWS IAM policy JSON structure: Version, Statement, Effect, Action, Resource, Principal. Effect must be Allow or Deny — case-sensitive, common source of silent policy failures. Action validation: service:action format, wildcard patterns (s3:Get*, ec2:Describe*).
How should I use the result?
Treat the tool's output as a first-pass check, not a proof of correctness. A clean pass means no issues in the patterns this tool recognizes; a failure points to a specific problem you can investigate in your source. The underlying spec is the authoritative source for edge cases.
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