furudo-erika/awesome-postman-alternatives

List of awesome API clients. Postman and Insomnia alternatives

💎 A curated list of awesome HTTP Clients for exploring, debugging, and testing APIs. Best place to find postman alternatives.

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

API Dash is a beautiful AI-powered open-source cross-platform (Desktop & Mobile) API Client built using Flutter which can help you easily create & customize your HTTP & GraphQL API requests, visually inspect responses and generate API integration code. A lightweight alternative to postman/insomnia.

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

Free, open source, git-native API client. A local-first Postman, Insomnia and Bruno alternative for macOS, Windows and Linux: plain-text .tiger collections, works offline, no account, built-in MCP server for Claude and Cursor. MIT.

A powerful, local-first API client with Git integration, offline support, and multi-protocol capabilities. Open source alternative to Postman.

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

🚀 HTTPie Desktop — cross-platform API testing client for humans. Painlessly test REST, GraphQL, and HTTP APIs.