Free open-source alternative to lucidscale

 While the standard Lucidchart tool has a basic free tier for manual sketching (up to 3 documents and a limited number of shapes), Lucidscale—the specific add-on that connects to your cloud account to auto-generate diagrams—is a premium enterprise-focused tool.  

​It does offer a limited free trial, but the actual individual or team licensing starts at roughly $2,000+ per year.  

​If you are looking for free or open-source alternatives to automatically map out, visualize, or validate your AWS environment while studying for your certification, here are some great options:

​Free & Open-Source Alternatives

​1. CloudQuery (Open Source)

​Instead of a visual GUI right away, CloudQuery syncs your AWS infrastructure metadata into a standard SQL database (like PostgreSQL). Once your infrastructure is in a database, you can run free SQL queries against it to find unencrypted buckets, open ports, or orphaned resources, or connect it to a free BI tool like Grafana to visualize it.

​2. Former2 (Free / Browser-Based)

​If you have built things manually in your AWS console and want to see the "code" representation of it, Former2 is a completely free tool. You provide it with temporary, read-only AWS credentials, and it scans your account to generate CloudFormation, Terraform, or Troposphere code directly from your existing resources. It is incredible for learning how console actions translate to Infrastructure as Code.

​3. Komiser (Open Source / Free Tier)

​Komiser is a cloud environment inspector. You can run it locally on your machine for free. It connects to your AWS account and filters resources by tags, regions, and cost, allowing you to catch hidden expenses or untagged infrastructure easily.  

​4. AWS Application Composer (Free inside AWS Console)

​If you want to drag and drop components to visually design an architecture and have it automatically generate the valid AWS CloudFormation/SAML code in real-time, use AWS Application Composer inside the AWS Management Console. It is completely free to use (you only pay for any actual resources you choose to deploy).

​💡 Tip for your AWS Certification: If an exam question asks about identifying security gaps or misconfigurations in a live AWS environment automatically, the correct "AWS-native" answer is usually AWS Config (for compliance auditing) or AWS Trusted Advisor (which gives you a free dashboard checking your account against Security, Fault Tolerance, Performance, and Cost limits).