CloudBurn

CloudBurn is a proactive FinOps and cost intelligence platform designed for engineering teams using Infrastructure-as-Code (IaC) tools like Terraform and AWS CDK. It directly tackles the pervasive problem of unexpected and spiraling AWS bills by integrating cost visibility into the developer workflow. The tool is built for developers, platform engineers, and DevOps teams who want to shift cost governance left, catching expensive infrastructure misconfigurations during code review—before they are ever deployed to production. By automatically analyzing pull requests, CloudBurn provides real-time, line-item AWS cost estimates for proposed changes, posting a clear report as a comment. This transforms cost from a retrospective, finance-team concern into a real-time, actionable metric for engineers. Its core value proposition is preventing financial waste by enabling informed architectural decisions early, fostering a culture of cost accountability, and delivering an immediate return on investment by avoiding costly mistakes that traditionally only surface weeks later on an invoice.

Automated Pull Request Cost Analysis

CloudBurn seamlessly integrates with your GitHub workflow to provide automated cost analysis on every pull request. Once configured, it automatically detects infrastructure changes from tools like AWS CDK Diff or Terraform Plan, calculates the precise monthly cost impact, and posts a detailed, easy-to-read report directly in the PR conversation. This eliminates manual estimation and ensures cost awareness is a natural part of every code review cycle without requiring extra steps from developers.

Real-Time AWS Pricing Data

The platform uses always up-to-date, real-time AWS pricing data to generate its estimates. This ensures that the cost reports reflect the actual current prices for services, instance types, storage, and data transfer in your specific region. You can trust that the dollar figures you see are accurate and not based on outdated spreadsheets or static price lists, which is critical for making reliable financial decisions about your architecture.

Detailed Line-Item Cost Breakdown

Beyond a simple total, CloudBurn provides a granular, line-item breakdown of costs for each new or modified resource. The report shows the current cost, the new projected monthly cost, and the delta for every resource. It also includes details like hourly rates, AWS usage types, and service descriptions, giving developers and reviewers full transparency into what is driving the cost change and where optimizations can be made.

Secure GitHub-Centric Integration

Security and simplicity are paramount. CloudBurn's setup, billing, and permissions are handled 100% through GitHub. You install it via the GitHub Marketplace, and it operates using standard GitHub Actions. This means no separate dashboard logins, no need to share AWS credentials directly with a third party, and a setup that aligns perfectly with developer-centric, GitOps-based workflows, ensuring a secure and frictionless adoption.

Preventing Costly Misconfigurations in PR Reviews

The primary use case is catching expensive mistakes during code review. For example, a developer might accidentally change an instance type from t3.micro to t3.xlarge or provision an unencrypted, publicly accessible S3 bucket with excessive storage. CloudBurn will flag the significant cost increase or high-risk resource immediately in the PR, allowing the team to question and correct the configuration before it merges, preventing a surprise bill.

Enabling Data-Driven Architecture Decisions

Teams can use CloudBurn to compare the cost implications of different architectural approaches directly in their feature branches. When debating between using AWS Fargate versus EC2 instances, or choosing a database instance size, developers can create PRs for each option. CloudBurn's cost reports provide concrete financial data to inform these decisions, helping teams balance performance, scalability, and cost from the outset.

Establishing Team-Wide Cost Accountability

CloudBurn fosters a culture of financial responsibility (FinOps) within engineering teams. By making cost impact visible to every contributor and reviewer, it encourages developers to consider cost as a non-functional requirement. This shared visibility ensures that cost optimization is a collective effort, not just a task for a separate FinOps team, leading to more sustainable infrastructure spending.

Streamlining Compliance and Budget Governance

Platform engineering and leadership teams can use CloudBurn to enforce soft budget guards. By requiring cost review on all infrastructure PRs, they can ensure that no single change exceeds a certain cost threshold without explicit approval. This creates an automated governance layer that helps keep projects within budget and aligns infrastructure spending with business objectives without heavy-handed manual processes.

How does CloudBurn calculate the cost estimates?

CloudBurn calculates costs by analyzing the output of your Infrastructure-as-Code tool's diff command (like cdk diff or terraform plan). It identifies the specific AWS resources being added, modified, or removed. Then, it cross-references these resources with real-time AWS pricing data for your configured region, applying standard assumptions for monthly usage (730 hours) to generate a projected monthly cost. The result is a detailed report showing the impact per resource and in total.

Is my code or AWS access secure with CloudBurn?

Yes, security is a core design principle. CloudBurn does not require direct access to your AWS accounts. All analysis is performed based on the plan/diff output generated securely within your own GitHub Actions workflow. Billing and permissions are managed entirely through GitHub, so there are no separate credentials to manage. The tool follows the principle of least privilege and is verified by GitHub.

What IaC tools and cloud providers does CloudBurn support?

Currently, CloudBurn specializes in supporting AWS cloud infrastructure. It natively integrates with the two most popular IaC frameworks for AWS: HashiCorp Terraform and the AWS Cloud Development Kit (AWS CDK). The setup involves adding the corresponding GitHub Action (Terraform Plan PR Commenter or AWS CDK Diff PR Commenter) to your repository's workflow.

Can I use CloudBurn for free?

Yes, CloudBurn offers a free Community plan that you can use forever. They also provide a 14-day trial of their Pro features, which include more advanced reporting and capabilities, with no credit card required to start. You can begin using the core pull request cost analysis functionality at no cost to evaluate its value for your team.