I kept wanting one thing: paste a public URL, and get a unified diff when the text changes — in email, Slack, or a JSON webhook I can point at n8n. Screenshot tools are built for that inbox moment ("something changed, go look"). Self-hosting changedetection.

Source: [Dev.to](https://dev.to/signalwatch/i-wanted-the-diff-not-a-screenshot-a-small-url-change-api-1aoh)

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