IAM Policy to CDK Converter

Migrating an existing IAM policy document into an AWS CDK app usually means deciding how to represent it in code. IAM Policy to CDK Converter pastes your policy JSON and produces a TypeScript snippet using iam.PolicyDocument.fromJson(...) — the simplest, most robust pattern for embedding an already-resolved static policy, since JSON syntax is directly valid as a TypeScript object literal and needs no re-derivation into a sequence of new iam.PolicyStatement({...}) builder calls.

The output wraps the parsed document in a small ManagedPolicy construct as a complete, runnable example, with the construct id, variable name, and managedPolicyName clearly labeled as placeholders you should rename to fit your actual CDK app before deploying. Only TypeScript is generated; if you need Python, Java, or C#, treat the printed JSON as the source of truth and port the call to your language's CDK equivalent by hand.

Because this tool only converts a static, already-resolved JSON policy, it has no way to know which values in your policy should become dynamic CDK tokens (e.g. a bucket ARN available only at synth time) — that kind of reference needs to be added by hand after conversion.

• Generates a TypeScript CDK snippet using iam.PolicyDocument.fromJson(...).
• Wraps the result in a complete ManagedPolicy construct example.
• Custom variable name and managed policy name fields.
• Works on any valid JSON, with a structural warning if it does not look like a complete IAM policy.
• One-click copy of the generated code.
• 100% client-side — nothing is uploaded.

1. Paste your policy JSON, or click the sample.
2. Set the CDK variable name and managed policy name (or leave the defaults).
3. Click Convert to CDK.
4. Copy the TypeScript and rename the placeholders to fit your app before deploying.

Example. A simple S3 read-only statement converts into import * as iam from 'aws-cdk-lib/aws-iam'; const policyDocument = iam.PolicyDocument.fromJson({ ... }); const examplePolicy = new iam.ManagedPolicy(this, 'ExamplePolicy', { managedPolicyName: 'example-policy', document: policyDocument });.

• Skips the manual reformatting of translating an existing policy into CDK's builder API.
• Uses the simplest, most robust embedding pattern — fromJson(), not a hand-rolled per-statement translation.
• Clearly labeled placeholders so you know exactly what to rename.
• Private — conversion runs entirely in your browser.