WhatTheDiff

WhatTheDiff

Automate code reviews with AI-powered PR descriptions.
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Updated: November 10, 2025

Introduction

If you're tired of writing the same pull request descriptions over and over, or watching your team struggle to understand what changed in the latest code update, you're not alone.

Code reviews eat up hours of developer time, and keeping everyone on the same page feels like a never-ending battle. WhatTheDiff steps in as your AI-powered code review assistant, automatically generating clear PR descriptions and turning technical changes into plain English summaries that your whole team can understand.

Whether you're managing a small development team or trying to keep non-technical stakeholders in the loop, this tool promises to cut through the confusion and get everyone speaking the same language about your code changes.

Key Features

Automated PR Descriptions: Creates detailed pull request descriptions automatically by analyzing your code changes. This saves hours of writing time and helps reviewers understand changes faster, making code reviews more efficient.

Rich Summary Notifications: Sends simple summaries of code changes to Slack, email, or webhooks in plain language. Your marketing team, project managers, and other non-technical folks stay in the loop without needing to understand code.

Beautiful Changelogs: Generates public changelogs or JSON feeds that explain project updates in everyday language. You can share progress with clients or stakeholders without technical jargon getting in the way.

Weekly Progress Reports: Delivers AI-generated summaries of what your team accomplished each week. These reports go straight to your team channels or managers, keeping everyone aligned on progress without extra meetings.

Inline AI Refactoring: Lets reviewers suggest code improvements right in the pull request by typing /wtd. Small code fixes happen instantly without switching between tools or waiting for developers to make changes manually.

Fine-Grained Settings: Gives you control over when and how the tool works, like skipping automated pull requests or managing token usage. You can customize it to fit your team’s exact workflow and budget needs.

Our Take

If you’re running a small development team or managing tech projects, WhatTheDiff could save you real time on code reviews. The automated PR descriptions mean your developers spend less time writing up what they changed and more time actually coding. That’s money back in your pocket.

The fact that non-technical team members can get plain English summaries is pretty useful too. Your project managers or clients can stay in the loop without needing to understand code. This beats having developers spend 30 minutes explaining technical changes in meetings.

The token system might trip you up if you’re not careful though. With 25,000 free tokens monthly, you’ll need to watch your usage. Bigger teams or projects with lots of pull requests could blow through that fast. You’ll want to do the math on whether the paid plans make sense for your volume.

The full repository access requirement is something to think about. Some companies get nervous about giving third-party tools complete access to their code. WhatTheDiff says they don’t store your code, just read the diffs through the APIs, but you’ll need to decide if that works for your security policies.

For the price point and features, it’s competitive with similar tools. The inline refactoring feature where reviewers can suggest code improvements right in the PR is particularly handy. If your team struggles with lengthy code review processes or communication gaps between technical and non-technical folks, this tool addresses those pain points directly.

Pros

  • Saves tons of time by automatically writing pull request descriptions
  • Makes it super easy for non-technical team members to understand code changes
  • Works with almost any programming language you're using
  • Keeps your code private and secure - doesn't store anything
  • Sends helpful weekly summaries of what your team accomplished
  • Lets reviewers fix code issues right in the pull request with a simple comment
  • You can customize settings to fit exactly how your team works
  • Translates summaries into different languages for global teams
  • Integrates smoothly with GitHub and GitLab without any hassle
  • Creates beautiful changelogs that clients and stakeholders can actually understand

Cons

  • Token limits can catch you off guard if you're not watching usage
  • You need to give full access to your repos which might worry some teams
  • Unused tokens disappear at month end instead of rolling over
  • Free plan's 25,000 tokens go fast with bigger projects
  • No public API for custom integrations yet
  • Can't exclude specific files from analysis

Pricing

What-the-Diff offers usage-based pricing with two main tiers.

The Free plan includes 25,000 tokens per month (approximately 10 pull requests) with unlimited repositories, inline code refactoring, and no credit card required, though it is rate limited.

The Pro plan at $19 per month provides 200,000 tokens (approximately 40 pull requests), instant code refactoring, Slack/Webhook/Email notifications, and priority email support.

Both plans include unlimited repositories. Tokens are used to process git diffs, with average pull requests consuming around 2,300 tokens.

Unused tokens do not roll over to the next month. Users can start free and upgrade when needed, with no automatic plan upgrades when token limits are reached.

Final Thoughts

WhatTheDiff tackles a real pain point that costs development teams hours every week. If you’re watching your developers spend more time explaining code changes than writing them, or if your non-technical team members feel left out of the loop, this tool deserves a serious look. The free tier gives you enough tokens to test it out properly with your team’s actual workflow.

Before jumping in, think about your current PR volume and how much time your team spends on code review communication. Calculate whether the token limits work for your needs and if your security policies allow the repository access it requires. The weekly summaries and changelog features alone could transform how your team communicates progress to stakeholders.

Ready to see if WhatTheDiff can speed up your code reviews and get everyone on the same page? Click the button below to try it out with your team.

FAQs

How many tokens do I get with the free plan?

You get 25,000 tokens per month on the free plan, which covers basic usage for small teams.

Does WhatTheDiff work with both GitHub and GitLab?

Yes, it integrates smoothly with both GitHub and GitLab repositories.

Will WhatTheDiff store my code?

No, WhatTheDiff doesn't store your code - it only reads the diffs through the GitHub/GitLab APIs to keep your code private and secure.

Can my non-technical team members understand the summaries?

Yes, WhatTheDiff translates code changes into plain English summaries that project managers, marketers, and other non-technical folks can easily understand.

Do unused tokens carry over to the next month?

No, unused tokens expire at the end of each month and don't roll over, so you'll want to pick a plan that matches your typical usage.

Learn More About WhatTheDiff Here!

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