Apps similar to ApiArk include Bruno, which is open source with a free version. Other options are Postman, Insomnia REST Client, Yaak and Hoppscotch. There's no shortage of API Clients like ApiArk, with more than 50 alternatives for Mac, Windows, Linux, the web and Chrome OS.
Tetiva is a desktop API client for HTTP, gRPC, GraphQL and WebSocket. It is built with Go and Wails on the system web view rather than Electron, so the download is around 30 MB.
Routebase keeps your API's design, docs, mock servers, contract tests and monitoring in one living OpenAPI spec so they can't drift apart.
A local-first HTTP and GraphQL client for macOS with request history, dynamic variables, imports, and request-to-trace debugging.
Poland
EU
Build REST and GraphQL requests, then load-test identical endpoints locally with a native C++ engine. Import Postman, Insomnia, and OpenAPI data; use layered environments, pm.* scripts, CSV or JSON runs, SSE, mock servers, and an MCP server for coding agents.
India
Gotcha HTTP Client is a lightweight http client that allows you to make requests and inspect responses.
Humlix shows you an easy way of generating tests for your web APIs. All you need to do is create a test request using the test request builder within Humlix and give an example of how your endpoints look and what type of data they want.
EchoAPI is an all-in-one API development collaboration platform that offers essential features like API debugging, design, automated testing, stress testing, and documentation generation.
API Dash is a beautiful open-source cross-platform API Client built using Flutter which can help you easily create & customize your API requests, visually inspect responses and generate API integration code. A lightweight alternative to postman/insomnia.
apikumo is an API workspace that combines an API client, a hosted documentation site, and a live MCP (Model Context Protocol) endpoint in one place. Design your API once, and every AI agent can call it.
Lightweight, free and open-source offline REST and GraphQL API client for Visual Studio Code. A privacy-focused client for testing APIs, HTTP requests and web services.
India
APITree is a free cloud-based API tool to create, manage and share OpenAPI specifications. It converts your OpenApi v2 / v3 specification into a beautiful technical API documentation. Public API documentation is hosted for free.
API integration platform for testing, prototyping, and running of any API flow. The right tool for successful API flow integration - nice, easy, simple, and cheap.
United Kingdom
