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API Changelog Generator

Generate structured changelogs from API version diffs. Categorize changes as Added, Changed, Deprecated, Removed, Fixed, or Security. Code never leaves your device — formatting and validation run locally in your browser.

100% Local Browser Native

How to Use the API Changelog Generator

1. Set options

Adjust the settings for API Changelog first.

2. Generate

Create your API Changelog with one click.

3. Copy and reuse

Copy the output; regenerate for more options.

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Frequently Asked Questions

What feeds it?

Endpoint lists, old and new — diffed into added, changed, and removed.

Semver grouping?

Breaking changes surface first, then additions, then fixes — in release order.

Output format?

Markdown changelogs ready for release notes and documentation pages.

Are my endpoints uploaded anywhere?

No — generation runs locally in your browser, free with no signup.

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Last updated October 2026