CodeBurn is a free, open-source utility designed to help developers track and optimize their AI coding expenditures. As AI-powered development tools become a standard part of the software engineering workflow, tracking the actual financial cost and token usage of these services can be difficult. CodeBurn solves this by reading the session files that your existing tools already write.

The tool supports over 40 popular AI coding assistants, including Claude Code, Cursor, Codex, and Copilot. By analyzing local session files, CodeBurn breaks down every single token and dollar spent, categorizing the cost by specific tasks, LLM models, projects, and pull requests.

Key features of CodeBurn include:

The Optimize Tab: Quickly identifies common sources of waste, such as cache bloat and retry taxes, applies automated fixes, and tracks exactly how much money those fixes saved.
Complete Local Privacy: Because everything runs entirely on your local machine, there are no accounts to create and no data uploads required. Your code and session data remain entirely secure.
Open Source & Free: Published under the MIT license, CodeBurn is completely free and is already trusted by more than 150,000 developers worldwide.

Pros of CodeBurn

Completely free and open-source (MIT-licensed)
Runs entirely on your local machine with no accounts or data uploads required
Supports over 40 AI coding tools, including Claude Code, Cursor, Codex, and Copilot
Includes an Optimize tab to identify and fix waste like cache bloat and retry tax
Provides detailed cost breakdowns by task, model, project, and pull request

Cons of CodeBurn

Requires tools to write local session files to be compatible
No centralized cloud dashboard for enterprise-wide team management

Frequently Asked Questions

What AI coding tools does CodeBurn support?

CodeBurn supports over 40 popular AI developer tools by reading the session files they automatically write. Supported tools include Claude Code, Cursor, Codex, and Copilot, among many others.

Does CodeBurn upload my code or data to external servers?

No. CodeBurn is built with a local-first architecture. Everything runs directly on your machine with no account registration required and absolutely no data uploads.

How does CodeBurn help reduce my AI spending?

CodeBurn features an Optimize tab that scans your session logs to detect inefficient waste, such as cache bloat or retry taxes. It allows you to apply fixes directly and tracks the exact amount of money saved over time.