Beeceptor - Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.
EtherCalc - EtherCalc is a web spreadsheet.
Request inspector - Debug web hooks, http clients
Aspose.Cells for Cloud - Aspose.Cells for Cloud is a REST based API for processing spreadsheets in the cloud.
RequestWatch - Inspect and debug HTTP requests
Simple Spreadsheet - Simple Spreadsheet