Reviewing code changes and writing detailed pull request descriptions can take valuable time for software development teams. What The Diff is an AI-powered code review assistant that helps developers understand code changes, generate pull request descriptions, and keep their teams informed.
It integrates with GitHub and GitLab to explain code changes in simple language. Whether you’re a developer, engineering manager, or part of a software team, What The Diff aims to make code reviews more efficient. But is it worth using? Let’s explore its features, pricing, and benefits.
What Is What The Diff?
What The Diff is an AI tool designed to simplify the pull request review process. It analyzes code differences (diffs) and automatically generates descriptions explaining what has changed and why those changes matter.
The platform is useful for software developers, engineering teams, product managers, and businesses that want to improve communication around development work.
What Can You Do With What The Diff?
AI Pull Request Descriptions
What The Diff automatically generates clear descriptions of code changes when developers create or update pull requests. This saves time that would otherwise be spent writing explanations manually.
AI Code Refactoring
Developers can request code improvements directly through pull request comments. The AI helps suggest refactoring changes, making it easier to improve code without lengthy discussions.
Summary Notifications
The platform sends simplified summaries through Slack, email, and webhooks. These updates help non-technical team members understand development progress without reading complex code.
Automated Changelogs
What The Diff can generate changelogs based on merged pull requests. Teams can share these updates publicly or use the JSON API to integrate changelog information into their own systems.
Weekly Progress Reports
The platform summarizes development activity across the week, helping teams understand completed work and follow project progress.
GitHub and GitLab Integration
What The Diff integrates directly with GitHub and GitLab. Users can connect repositories and let the AI analyze pull requests within their existing development workflow.
What The Diff Pricing
What The Diff offers a free plan and a paid Pro plan with higher monthly token allowances.
- Free — $0/month: Includes 25,000 tokens per month, approximately 10 average pull requests, unlimited repositories, automated descriptions, and inline code refactoring.
- Pro — Starting at $19/month: Includes 200,000 tokens per month, approximately 40 average pull requests, instant code refactoring, Slack, webhook and email notifications, and priority email support.
- Higher Usage Options: Pro users can select larger monthly token allowances, including 500,000 tokens, 1.5 million tokens, and unlimited usage, at corresponding prices.
The actual token consumption depends on the size of each pull request. Unused monthly tokens do not roll over, so review your expected usage before choosing a plan.
Is What The Diff Easy to Use?
What The Diff is designed to fit into existing development workflows. Users connect their GitHub or GitLab repositories, configure their preferences, and continue creating pull requests as usual.
The AI analyzes code changes and generates descriptions or summaries automatically. Developers can also use supported pull request comments to request refactoring suggestions.
This makes the tool convenient for teams that want AI assistance without introducing a completely separate code review process.
What The Diff Pros and Cons
Pros
- Automatically generates pull request descriptions.
- AI-powered code refactoring assistance.
- Supports GitHub and GitLab.
- Sends team notifications through Slack and email.
- Creates automated changelogs and weekly reports.
- Supports nearly all programming languages.
- Free plan available.
Cons
- Monthly usage is limited by tokens on selected plans.
- Larger pull requests consume more tokens.
- Advanced usage requires a paid plan.
- AI-generated descriptions and code changes need human review.
- Repository permissions should be reviewed before installation.
Who Is What The Diff Best For?
What The Diff is particularly useful for software developers, engineering teams, startup founders, product managers, and open-source maintainers.
It can help developers save time writing pull request descriptions while allowing product teams and other stakeholders to understand technical progress through simplified summaries.
Is What The Diff Worth It?
What The Diff is worth considering if your team regularly creates pull requests and spends time explaining code changes. Its AI-generated descriptions, notifications, changelogs, and refactoring assistance can help simplify repetitive development tasks.
The free plan is a good starting point for smaller teams. Larger development teams should compare their monthly token usage with the available Pro options before subscribing.
Final Verdict
What The Diff is a useful AI-powered assistant for improving pull request communication and simplifying code review workflows. Its GitHub and GitLab integrations, automated descriptions, and AI refactoring features make it valuable for software development teams.
If your team wants to spend less time writing code explanations and more time building products, What The Diff is worth exploring.
Frequently Asked Questions
What is What The Diff used for?
What The Diff is used to generate pull request descriptions, summarize code changes, assist with code refactoring, and create automated changelogs.
Is What The Diff free?
Yes. Its free plan includes 25,000 tokens per month and supports unlimited repositories.
Does What The Diff work with GitHub and GitLab?
Yes. It integrates with both platforms and analyzes pull request changes through their APIs.
Does What The Diff support different programming languages?
Yes. The platform supports nearly all programming languages and can explain code differences in plain English and other supported languages.
Does What The Diff store my source code?
According to its official website, What The Diff does not store your code or pull request diffs, and it does not use your code to train its AI models. However, users should review repository permissions and the privacy policy before connecting their accounts.
