Free IAM Policy Size Calculator
AWS IAM caps how large a policy can be: 6,144 characters for a customer-managed policy, and 2,048 / 10,240 / 5,120 characters for inline policies on a user / role / group respectively. The limit excludes whitespace, so a nicely-indented policy can look huge but still fit. Paste a policy below to check its actual size before you hit LimitExceeded on save.
Runs entirely in your browser. Nothing is sent anywhere or logged. Measures the whitespace-stripped length — the same way IAM counts policy size against its quotas.