soapUI is described as 'Eviware, the maker of soapUI, Web Service Testing Leader' and is a popular API Client in the development category. There are more than 50 alternatives to soapUI for a variety of platforms, including Windows, Mac, Linux, Web-based and Flathub apps. The best soapUI alternative is Bruno, which is both free and Open Source. Other great apps like soapUI are Postman, Insomnia REST Client, Yaak and Hoppscotch.
Lightweight open source API client offering offline API testing, local filesystem storage via plain text, version control compatibility with git, intuitive request management, privacy-first design, cross-platform support, minimal resource usage, and community-driven development.
Postman is a collaborative platform for API development that provides extensive tools for designing, testing, and documenting APIs. It allows API verification through requests, automated testing via Collection Runner, and offers both free and paid plans, catering to individuals and teams.
A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.
The API client for modern developers. Call REST, GraphQL, and gRPC APIs from a simple and intuitive app.
Hoppscotch is an open-source API development ecosystem. It helps you create your requests faster, saving you precious time on your development.
ApiArk is a local-first API client built with Tauri v2 and Rust. No login, no cloud, no telemetry. Supports REST, GraphQL, gRPC, WebSocket, SSE and MQTT from one interface. Collections are stored as plain YAML files on your filesystem, fully git-diffable.
Insomnium is a fast local API testing tool that is privacy-focused and 100% local. For testing GraphQL, REST, WebSockets and gRPC. This is a fork of Kong/insomnia.
API testing tool. Which allows web developers to create and test custom HTTP requests.
Apache JMeter is an open source Java application, designed to load test functional behavior and measure performance. Originally designed for testing Web Applications, it has since expanded to other test functions as well.
RecipeUI is rethinking how we use API tools like Postman or Insomnia. We're starting off with TypeScript powered API requests and API collections you can run in seconds!
Voiden.md is an offline-first, Git-native API workspace that unifies specs, docs, tests, and mocks using programmable Markdown blocks. Build APIs the way you actually work.
Kreya is a GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more.
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soapUI can generate request based on a WSDL