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   * [Unixtime](https://unixtime.co.za) - Free API to convert Unixtime to DateTime and vice versa.
   * [unscan](https://unscan.co) - Free API to scan images for NSFW and files for malware. 100 requests per second.
   * [Webhook.site](https://webhook.site) - Easily test HTTP webhooks with this handy tool that displays requests instantly.
+  * [Webhook Store](https://www.openwebhook.io) - Tool for storing third party webhooks and debug them on localhost (ngrok style). Open source and self-hostable. Free personal domain *username*.github.webhook.store, free public domains *anything*.webhook.store. 
   * [wit.ai](https://wit.ai/) — NLP for developers.
   * [wolfram.com](https://wolfram.com/language/) — Built-in knowledge-based algorithms in the cloud.
   * [wrapapi.com](https://wrapapi.com/) — Turn any website into a parameterized API. 30k API calls per month.