1.usebruno / bruno
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
Ranked by Attention Score: stars gained over the last 90 complete days
23 repositories by Attention Score · Aug 5, 2026 – Nov 2, 2026 (UTC)
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
Mobile Security Framework (MobSF) is an automated, all-in-one mobile application (Android/iOS/Windows) pen-testing, malware analysis and security assessment framework capable of performing static and dynamic analysis.
🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.
Catch API bugs before your users do
MeterSphere 是新一代的开源持续测试工具,内置 AI 助手,让软件测试工作更简单、更高效,不再成为持续交付的瓶颈。
Hurl, run and test HTTP requests with plain text.
Friendly and fast tool for sending HTTP requests
Test Automation Made Simple
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
:books: The starting point of your career as a Software Quality Assurance Engineer | Quality Automation Engineer :books:
Community hub for Requestly API Client — bugs, feature requests, and roadmap. The privacy-first Postman alternative.
Fast, native API client for REST, gRPC, WebSocket and GraphQL. A local-first Postman alternative written in Go: no Electron, no account, no cloud.
Automated API Testing and Quality Assurance
An interactive command-line HTTP and API testing client built on top of HTTPie featuring autocomplete, syntax highlighting, and more. https://twitter.com/httpie
Bypass provides a quick way to create a custom plug that can be put in place instead of an actual HTTP server to return prebaked responses to client requests.
Mockbin by Zuplo. Mock, Test, and View HTTP Requests and Responses
Capture, inspect, and replay webhooks with 90-day history + signature verification. Built on Cloudflare Workers + D1.
HTTP client for Neovim with requests in pure Lua. Programmable, composable, extensible.
Convert Postman Collection v2.1 JSON into executable pytest test suites
Observable Integration Testing using OpenTelemetry on top of Jest/Playwright/Cypress.