Beeceptor - Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
SOAP/REST Mock Service - Download SOAP/REST Mock Service for free.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Mocko.dev - Proxy your API, choose which endpoints to mock in the cloud and inspect traffic, for free. Speed up your development and integrations tests.
Apple Numbers - Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone — or on a PC using iWork for iCloud. And it’s compatible with Apple Pencil.