Case Study: freee saves reviewer time and improves code review quality with CodeRabbit

freee saves 32.8 weeks of reviewer time with CodeRabbit

freee, a Japan-based provider of cloud accounting and business software, faced a challenge where AI-assisted coding tools scaled code generation faster than their human review capacity could handle. This created a bottleneck that threatened to slow delivery speed. To address this, freee adopted the AI code review platform CodeRabbit.

CodeRabbit implemented its AI-first pull request reviewer, which provided context-aware feedback and line-by-line suggestions. The solution saved an estimated 32.8 weeks of reviewer time in six months and achieved a 54% acceptance rate on critical issues. This significantly reduced the manual review burden on developers, with 84% of freee's engineers reporting satisfaction with the CodeRabbit platform.

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