100% Free Developer Tools
Free S3 & Cloud Storage Tools
Policy & Security
S3 & R2 CORS Policy Generator
Generate and validate CORS rules for AWS S3, Cloudflare R2, MinIO, and DigitalOcean Spaces.
Policy & Security
S3 IAM Policy Generator
Build minimal, secure AWS IAM policies for bucket access, read-only, or upload-only access.
Utilities & Parsing
S3 Presigned URL Inspector & Tester
Dissect, inspect, and validate S3 presigned URLs, signatures, and expiration parameters.
Utilities & Parsing
S3 URI & Path Converter
Parse s3:// URIs, HTTPS endpoints, and Cloudflare R2 links into bucket name, key, and CLI commands.
Cost & Analytics
Cloud Storage & Egress Cost Calculator
Calculate and compare monthly storage, egress, and API costs across AWS S3, R2, B2, and Wasabi.
Policy & Security
AWS Profile Config Generator
Generate and format ~/.aws/config and ~/.aws/credentials profiles for AWS CLI, SSO, IAM roles, and S3 tools.
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