6,622 tools, each one opened, scored and signed by a Toolio reviewer

What-the-Diff

What The Diff helps you make pull requests accessible for everyone, but it requires full access to your code.

Checked 3 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of What-the-Diff

At a glance

Starts at Free Limited to 25,000 tokens per month (10 PRs)
Free tier Yes
Platforms Web, API
Best for Development teams with non-technical stakeholders
Not for Large codebases with strict permissions

4.0 out of 5

Scored by Alex after real use

Our verdict

Automates PR descriptions and sends summaries. Good for accessibility but needs full repo access.

✓What it does well

Automated PR descriptionsSaves time by automatically generating description comments.
Rich summary notificationsKeeps non-technical stakeholders informed with simplified summaries.
Beautiful changelogsShares public or internal changelogs via JSON API.

✕Where it falls short

Needs full access to your codeRequires full permission to read diff of pull requests, not just diffs.
Limited plan flexibilityUnused tokens don't roll over and plans can only be upgraded manually.
High cost for larger teamsUnlimited plan starts at $19/month, which may be expensive for larger repos.

Key features

Inline code refactoringRefactors minor issues directly within pull requests.
Weekly progress reportsProvides summaries of all changes in the past week.
Fine-granular settingsAllows customization such as skipping CI pull requests or limiting tokens.
repository limitssupports multiple repositories but charges per token usage.

Questions about What-the-Diff

What does What-the-Diff do?

What-the-Diff automatically writes pull request descriptions and sends simplified summaries so non-technical stakeholders can follow code changes. It also produces weekly progress reports, refactors minor issues inside pull requests and shares public or internal changelogs through a JSON API. It runs on the web and through an API.

Is What-the-Diff free?

What-the-Diff has a free tier limited to 25,000 tokens per month, which covers 10 PRs. The paid Pro – 200k plan costs $19 per month. Its fine-grained settings also let users limit token usage or skip CI pull requests.

Does What-the-Diff need access to my code?

Yes. What-the-Diff requires full access to a repository's code, not just the diffs of its pull requests, in order to work. For that reason Toolio lists it as not for large codebases with strict permissions, and the reviewer flags the access requirement as its main trade-off.

Who is What-the-Diff best for?

Toolio lists What-the-Diff as best for development teams with non-technical stakeholders. Its rich summary notifications and changelogs keep people who do not read code informed about what changed. Alex scored it 4.0 out of 5 after real use on 3 Oct 2026.

Is What-the-Diff expensive for larger teams?

It can be. The reviewer notes that the $19 per month plan may be expensive for larger repos, and What-the-Diff charges by token usage across multiple repositories. Unused tokens do not roll over, and plans can only be upgraded manually, which the reviewer lists among its shortcomings.

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