1.hoppscotch / hoppscotch
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
+1,031 stars
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5 repositories by Attention Score · Aug 5, 2026 – Nov 2, 2026 (UTC)
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
Automated API Testing and Quality Assurance
Mockbin by Zuplo. Mock, Test, and View HTTP Requests and Responses
Observable Integration Testing using OpenTelemetry on top of Jest/Playwright/Cypress.