Is the CloudFormation Formatter private?

Yes. This tool runs in your browser and does not upload your input to ToolHive.

Do I need an account?

No. You can use it directly without login.

Yes. Click the star icon to save it in this browser.

Format CloudFormation JSON or YAML templates.

A CloudFormation formatter for YAML and JSON templates, useful for reviewing AWS infrastructure snippets before commits.

AWS tools parse and estimate locally by default. Cost results are rough planning estimates; verify with AWS Pricing Calculator and billing data.

CloudFormation JSON / YAML

AWSTemplateFormatVersion: 2010-09-09
Resources:
  Bucket:
    Type: AWS::S3::Bucket

This tool runs locally in your browser. Your input is not uploaded to ToolHive.

Debug copied snippets and API payloads.

Prepare clean data for documentation or tickets.

Check content locally before sharing it.

More tools from the same category for adjacent workflows.

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A lightweight AWS cost calculator for quick monthly and annual estimates before using the official AWS Pricing Calculator.

Parse AWS ARN into partition, service, region, account, and resource.

An ARN parser for debugging IAM resources, CloudWatch logs, Lambda functions, S3 buckets, and AWS permissions.