What The Diff
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About
What The Diff is an AI-driven assistant designed specifically to streamline the pull request (PR) workflow for software development teams. By integrating directly with GitHub or GitLab, the tool analyzes the diff of code changes and automatically generates clear, descriptive summaries in plain English. This eliminates the manual burden of writing PR descriptions, ensuring that every code change is well-documented and easy to understand for reviewers and team members alike. Beyond simple descriptions, it serves as a bridge between technical updates and project oversight by translating code changes into readable narratives. The platform offers a suite of features that extend the utility of git diffs for the entire organization. It can send rich, simplified notifications to platforms like Slack, helping non-technical stakeholders stay informed without needing to parse raw code. It also generates beautiful public or internal changelogs and weekly progress reports that synthesize a week's worth of development activity into a single digestible format. One of its most distinctive features is the inline AI refactoring capability; instead of just leaving a comment during a review, users can leverage the AI to suggest and apply code improvements directly within the PR interface, speeding up the feedback loop. This tool is ideal for engineering managers, lead developers, and cross-functional teams who want to maintain high documentation standards without sacrificing velocity. It is particularly valuable for organizations where non-technical product owners or clients need to monitor progress, as the AI translates complex technical shifts into accessible summaries. The system supports nearly all programming languages and allows for fine-grained control, such as skipping CI-generated PRs or delaying analysis on draft PRs to optimize token usage and focus only on relevant human-led changes. What differentiates What The Diff from generic AI assistants is its focus on privacy and specific git-flow integration. Unlike many general-purpose LLM tools, it explicitly states that it does not store user code or use it to train its models, addressing a major concern for enterprise security and intellectual property protection. While it requires broad repository access due to current GitHub/GitLab API limitations, its commitment to data ephemeralness and its specialized focus on the diff rather than general-purpose coding makes it a highly targeted solution for the modern DevOps lifecycle.
Pros & Cons
Significantly reduces the time developers spend writing PR documentation.
Bridges the gap between technical teams and stakeholders with plain English summaries.
Strong privacy stance with a clear policy of not storing or training on user code.
Provides actionable inline refactoring suggestions rather than just comments.
Supports a wide variety of notification channels including Slack and Email.
Requires full repository access permissions due to third-party API limitations.
Unused tokens do not roll over to the following month.
The free tier is limited to approximately 10 pull requests per month.
Does not automatically upgrade plans if you hit your token limit mid-month.
Use Cases
Engineering managers can use automated weekly reports to quickly summarize team progress for executive leadership.
Individual developers can automate their documentation workflow, ensuring every PR has a professional description without manual effort.
Product owners can monitor Slack notifications to understand technical changes in plain English without looking at the code.
Open-source maintainers can utilize the automated changelog feature to keep users updated on new releases via a public URL.
DevOps teams can use fine-grained settings to exclude CI-generated PRs from consuming AI tokens unnecessarily.
Platform
Task
Features
• automated pull request descriptions
• json api for changelog consumption
• fine-grained settings to skip ci or draft prs
• support for nearly all programming languages
• public and internal changelog generation
• inline ai code refactoring
• weekly progress report generation
• rich summary notifications for slack and webhooks
FAQs
What is What The Diff?
It is an AI-powered application that reviews the changes (diffs) in your pull requests and automatically writes descriptive comments in plain English. This helps teams understand code changes without manually reading every line of code.
How does the tool access my code?
The application uses the official GitHub or GitLab APIs to retrieve the diff of your pull requests. It then processes this data through an AI model to generate descriptions, but the company does not store your source code.
Does it support multiple programming languages?
Yes, it supports nearly all programming languages for analysis. Furthermore, the AI can explain the changes in English or various other supported languages based on your preferences.
Will my code be used to train AI models?
No, the developers explicitly state they do not store your code or pull request diffs. Consequently, they cannot and do not use your proprietary data to train their AI models.
Why does the app require full access to my repositories?
This is a limitation of GitHub and GitLab's current permission systems, which do not offer a specific 'read-only' permission for just pull request diffs. Full access is required by the API to retrieve the necessary data for analysis.
Pricing Plans
Pro - 200k
USD19.00 / per month• 200,000 tokens per month (~40 PRs)
• Unlimited repositories
• Instant code refactoring
• Slack, Webhook and Email notifications
• Priority email support
Free
Free Plan• 25,000 tokens per month (~10 PRs)
• Unlimited repositories
• Inline code refactoring
• Rate limited
• No credit card required
Job Opportunities
There are currently no job postings for this AI tool.
Ratings & Reviews
No ratings available yet. Be the first to rate this tool!
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