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ChangeRadar
Breaking-change alerts for your dependencies
ChangeRadar tracks 176 popular libraries and alerts you, in plain English, when a release has breaking changes — before they break your build.
Hey Product Hunt 👋
I built ChangeRadar because I kept getting burned by silent breaking changes — a dependency bumps a "minor" version, CI stays green, and prod breaks because an API was removed or a default changed, and nobody read the changelog.
ChangeRadar tracks 176+ popular libraries (npm + PyPI) and generates a plain-English page per release showing what actually breaks + how to migrate. Detection runs an LLM over the release notes, not keyword matching — so it catches "useFormState was removed → use useActionState" even when it isn't tagged BREAKING.
What's free:
• A changelog/breaking-change page for every tracked library
• A GitHub Action that flags breaking changes in your PRs (uses: kaicheng042008-sudo/changeradar-action@v1)
• A public data API at /libs.json
Pro ($9/mo, launch price) adds instant alerts for your own stack + unlimited libraries.
Built solo and brand new — I'd genuinely love feedback on detection accuracy and which libraries to add next. AMA!
About ChangeRadar on Product Hunt
“Breaking-change alerts for your dependencies”
ChangeRadar was submitted on Product Hunt and earned 5 upvotes and 2 comments, placing #145 on the daily leaderboard. ChangeRadar tracks 176 popular libraries and alerts you, in plain English, when a release has breaking changes — before they break your build.
On the analytics side, ChangeRadar competes within Developer Tools, Artificial Intelligence and GitHub — topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how ChangeRadar performed against the three products that launched closest to it on the same day.
Who hunted ChangeRadar?
ChangeRadar was hunted by Kai Li. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of ChangeRadar including community comment highlights and product details, visit the product overview.
Kai Li