# What the Diff

According to OpenAITools.app telemetry verified on 2026-11-11, What the Diff (whatthediff.ai) is an AI platform indexed under AI Code Review generating 1.11K monthly visits with a month-over-month traffic delta of -1.65K (-59.8%). Its primary geographic market is United States (94.3% traffic share), and it operates on a Freemium pricing model. Top competing alternatives by monthly volume include Macroscope (106.17K visits/mo), CodeReviewBot.AI (2.52K visits/mo), CodeRabbit (1.05M visits/mo).

AI pull request descriptions and refactoring for GitHub and GitLab

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | What the Diff |
| Handle | whatthediff |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | whatthediff.ai |
| Website URL | https://whatthediff.ai |
| Categories | AI Code Review, AI Code Assistant, AI Copilot, AI GitHub |
| Pricing Model | Freemium |
| Monthly Visits | 1,113 |
| MoM Traffic Change | -1,652 |
| MoM Growth Rate | -59.8% |
| Primary Market | United States |
| Market Share | 94.3% |
| Direct Visits | 435 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 115 |
| Email Visits | 41 |
| Review Score | 4.2 |
| Saved Count | 5 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website; Pricing: Freemium |
| Tags | AI code review, Pull request automation, Code refactoring, GitHub integration, Gitlab integration, Code analysis, Developer tools, Changelog generation |

## Overview

What the Diff plugs into GitHub or GitLab and works where developers already are. When you open a pull request, it reads the diff through the provider API and generates a descriptive comment explaining what changed, why it likely changed, and what reviewers should pay attention to. The result is a first draft of PR context that a reviewer would otherwise have to reconstruct by reading the patch.

Beyond PR descriptions, the product covers summary notifications pushed to Slack, email, or webhooks so non-technical teammates stay informed, weekly reports that aggregate a team's progress, inline refactoring where you can request improvements in a comment and let the AI draft the change, and public changelogs that can be published or pulled into other tools through a JSON API. Granular controls let you choose repositories, skip CI pull requests, delay drafts, and manage token usage.

What the Diff is built by Beyond Code and follows a token-based usage model: each diff consumes tokens, with an average pull request costing roughly 2,300 tokens. The company states that it does not store your code, that third-party services do not store it either, and that your code is never used to train models. Unused tokens do not roll over between billing cycles.

## Pricing & Plans

What the Diff is freemium. The Free plan costs $0 per month and includes 25,000 tokens (about 10 pull requests) with unlimited repositories, automated PR descriptions, and inline refactoring. Pro starts at $19 per month for 200,000 tokens (about 40 pull requests) and scales through 500k, 1.5M, and unlimited tiers, adding Slack, webhook, and email notifications plus priority email support. No credit card is required to start, and plans do not upgrade automatically.

## Key Features & Capabilities

- **Automatic pull request descriptions:** Every PR gets a written summary of what changed in plain English, giving reviewers context without digging through the patch.
- **Summary notifications:** Simplified, translated summaries go out via Slack, email, or webhooks to keep non-technical teammates in the loop.
- **Inline AI refactoring:** Request improvements directly in a pull request comment and let the AI help draft the refactoring.
- **Weekly team reports:** Aggregate a week of work into a single clear update so nobody has to chase progress manually.
- **Public changelogs and JSON API:** Publish a public record of what is new, or pull the changelog into your own tools through a JSON API.

## Primary Use Cases

- **Write PR descriptions automatically (Developer):** Open a pull request as usual and get a clear description of the change without writing it yourself.
- **Speed up review handoff (Maintainer):** Give reviewers the context they need up front so reviews start with understanding instead of guesswork.
- **Follow progress in plain language (Product manager):** Receive translated, simplified summaries of merged work through Slack, email, or webhooks.
- **Report on shipped work weekly (Engineering manager):** Use aggregated weekly reports to show stakeholders what the team delivered without extra status meetings.

## Strengths

- Works inside GitHub and GitLab with no new workflow to learn
- Produces genuinely useful plain-English context for non-technical readers
- Free tier with unlimited repositories covers light individual use
- States clearly that your code is not stored or used for model training
- Adds refactoring, changelogs, and weekly reports beyond basic descriptions

## Limitations

- Token-based usage can be hard to predict for teams with large diffs
- Unused tokens do not roll over between billing cycles
- Requires full repository access because GitHub and GitLab lack a diff-only permission

## Frequently Asked Questions

### What exactly does What the Diff do?
It reviews the diff of your pull requests and writes a descriptive comment explaining the changes in plain English. It also supports inline refactoring, team summaries, weekly reports, and public changelogs.

### Does it work with languages other than English?
Yes. It supports nearly all programming languages, and the generated explanations can be produced in English or other supported languages.

### Do you store my code?
The company states that it does not store your code or your pull request diffs, that third-party services do not store them either, and that it does not train models on your code.

### What are tokens and what happens if I run out?
Bigger diffs require more tokens; an average pull request uses about 2,300. If you run out, you can upgrade to a larger plan or wait for the next billing cycle, since plans never upgrade automatically.

### What is What the Diff's monthly traffic and growth trend?
What the Diff currently receives 1.11K monthly visits, with a month-over-month traffic change of -1.65K (-59.8% growth rate). Its primary source market is United States (94.3% share), including 435 direct visits/mo and 0 organic search visits/mo.

### Is What the Diff free? What is its pricing model?
What the Diff operates on a Freemium pricing model. What the Diff is freemium. The Free plan costs $0 per month and includes 25,000 tokens (about 10 pull requests) with unlimited repositories, automated PR descriptions, and inline refactoring. Pro starts at $19 per month for 200,000 tokens (about 40 pull requests) and scales through 500k, 1.5M, and unlimited tiers, adding Slack, webhook, and email notifications plus priority email support. No credit card is required to start, and plans do not upgrade automatically. Supported billing and checkout platforms include: not listed.

### What are the best What the Diff alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to What the Diff are: 1. Macroscope (106.17K visits/mo); 2. CodeReviewBot.AI (2.52K visits/mo); 3. CodeRabbit (1.05M visits/mo); 4. Cursor (4.79M visits/mo); 5. GitLoop (9.5K visits/mo).

### Which platforms and core AI capabilities does What the Diff support?
What the Diff is classified under AI Code Review, AI Code Assistant, AI Copilot, AI GitHub, supports the following platforms: Website, and its core capability tags include: AI code review, Pull request automation, Code refactoring, GitHub integration, Gitlab integration, Code analysis.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [Macroscope](https://openaitools.app/tool/macroscope) | 106,170 | Free Trial, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/macroscope-vs-whatthediff) |
| [CodeReviewBot.AI](https://openaitools.app/tool/codereviewbot-ai) | 2,515 | Freemium, Free Trial, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/codereviewbot-ai-vs-whatthediff) |
| [CodeRabbit](https://openaitools.app/tool/coderabbit) | 1,048,880 | Freemium, Free Trial, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/coderabbit-vs-whatthediff) |
| [Cursor](https://openaitools.app/tool/cursor-sh) | 4,790,129 | Freemium | [Compare](https://openaitools.app/compare/cursor-sh-vs-whatthediff) |
| [GitLoop](https://openaitools.app/tool/gitloop) | 9,501 | Freemium | [Compare](https://openaitools.app/compare/gitloop-vs-whatthediff) |
| [Squire AI](https://openaitools.app/tool/squire-ai) | 687 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/squire-ai-vs-whatthediff) |
| [Command Code](https://openaitools.app/tool/command-code) | 2,358,177 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/command-code-vs-whatthediff) |
| [CodeMate AI](https://openaitools.app/tool/codemate-ai) | 14,189 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/codemate-ai-vs-whatthediff) |
| [Bito](https://openaitools.app/tool/bito) | 63,829 | Freemium, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/bito-vs-whatthediff) |
| [Aikido Security](https://openaitools.app/tool/aikido-security) | 757,491 | Freemium | [Compare](https://openaitools.app/compare/aikido-security-vs-whatthediff) |
| [Kodus](https://openaitools.app/tool/kodus-io) | 32,150 | Freemium | [Compare](https://openaitools.app/compare/kodus-io-vs-whatthediff) |
| [Devin](https://openaitools.app/tool/devin) | 2,549,346 | Paid | [Compare](https://openaitools.app/compare/devin-vs-whatthediff) |

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Source: https://openaitools.app/tool/whatthediff