Free
$0
25,000 tokens per month (~10 PRs). Unlimited repositories. Inline refactoring.
AI-powered PR description generator and code review assistant. Automatically writes pull request descriptions, sends stakeholder notifications, creates changelogs, and provides inline code refactoring.
+Pros
- Automatically generates PR descriptions — saves developers significant time on every pull request
- Stakeholder-friendly notifications with simplified language and translations
- Public changelog with JSON API for internal and external consumption
- Zero code storage — does not store or train on your code
- Inline AI refactoring lets you fix issues during review instead of leaving comments
−Cons
- Token-based pricing limits the number of PRs per month — 25k tokens (~10 PRs) on Free plan
- No IDE integration — works only via GitHub/GitLab webhooks
- Limited to PR descriptions and summaries — not a full coding agent or debugger
- No security scanning or vulnerability detection
- Requires full code read access due to GitHub/GitLab API limitations
Pricing
Pro
$19/mo
200,000 tokens per month (~40 PRs). Slack, webhook, and email notifications. Priority support.
Introduction
What The Diff is an AI-powered pull request assistant that automates the tedious parts of code review. Instead of manually writing PR descriptions, chasing stakeholders for feedback, or maintaining changelogs, What The Diff reads your git diffs and generates everything automatically.
Built by Beyond Code, What The Diff focuses on making pull requests accessible to everyone — not just developers. Product managers, designers, and stakeholders get simplified summaries in plain English (or their preferred language), while engineering teams get consistent, auto-generated PR descriptions that follow best practices.
Key Features
Automated PR Descriptions
What The Diff reads the diff of every pull request and writes a clear, structured description in plain English. It surfaces what changed, why it changed, and how it affects the codebase — giving reviewers immediate context without having to parse the diff themselves.
Stakeholder Notifications
Non-technical team members rarely read PR descriptions. What The Diff sends rich summary notifications with simplified language, emoji, and optional translations so product managers, designers, and leadership stay informed without needing to understand code.
Public Changelogs
Every merged PR can automatically appear on a beautiful public changelog page. The changelog is also available via JSON API for internal consumption — perfect for dashboards, release notes, and cross-team communication.
Weekly Progress Reports
Teams receive automated weekly summaries of all changes across repositories — a great tool for standups, retrospectives, and manager updates.
Inline AI Refactoring
During code review, What The Diff can suggest and apply refactoring changes directly — instead of leaving a comment for someone else to fix later.
Pricing
Plan | Price | Tokens | Best For |
|---|---|---|---|
Free | $0 | 25k/mo (~10 PRs) | Small teams trying it out |
Pro | $19/mo | 200k/mo (~40 PRs) | Active development teams |
Both plans include unlimited repositories. Average PR consumes ~2,300 tokens.
Who Is It For?
What The Diff is best for development teams that want to streamline their PR workflow without adding another heavy tool. It’s particularly valuable for:
- Teams with frequent PRs who want consistent, well-written descriptions
- Organizations with non-technical stakeholders who need digestible change summaries
- Open-source maintainers who want automated changelogs
- Engineering managers who want weekly progress visibility
Conclusion
What The Diff solves a specific, valuable problem — making pull requests readable and accessible. It doesn’t write code, find bugs, or replace code review. But for teams that struggle with PR descriptions and stakeholder communication, it eliminates a surprising amount of friction. The free tier is generous enough to evaluate, and the Pro tier at $19/mo is affordable for most teams.
Further Reading
Signature Snippet
A developer creates a PR with 15 file changes. What The Diff automatically generates a clear PR description summarizing the changes, sends a simplified notification to the product manager via Slack, and adds the changes to the team's public changelog.More in this Space
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