HTTP Clients

cURL is a computer software project providing a library and command-line tool for transferring data using various protocols with URL syntax: supporting FTP, FTPS, SCP, SFTP, HTTP, HTTPS, TFTP, TELNET, DICT, LDAP, LDAPS and FILE.

Bruno is a new and innovative open source API client, aimed at revolutionizing the status quo represented by Postman, Insomnia and similar tools out there.

Collaborative platform for API development providing design, specifications, testing, documentation, and requests with free and paid subscription plans.

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.

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.

HTTPie (pronounced aitch-tee-tee-pie) is a command line HTTP client. Its goal is to make CLI interaction with web services as human-friendly as possible. It provides a simple http command that allows for sending arbitrary HTTP requests using a simple and natural syntax, and...

Cartero is a graphical HTTP client that can be used as a developer tool to test web APIs and perform all kind of HTTP requests to web servers. It is compatible with any REST, SOAP or XML-RPC API and it supports multiple request methods as well as attaching body payloads to...

Requestly is a lightweight proxy available as a browser extension & desktop app to intercept & modify network requests. Using Requestly you can Modify Headers, Redirect Url, Mock API response, Delay/Throttle requests, etc.

xh is a friendly and fast tool for sending HTTP requests. It reimplements as much as possible of HTTPie's excellent design, with a focus on improved performance.

Eviware, the maker of soapUI, Web Service Testing Leader

soapUI is a tool for functional testing, mainly of web services like SOAP based web services and RESTful web services, but also HTTP based services and JMS Services as well as databases. soapUI is an open source and compl.

API testing tool. Which allows web developers to create and test custom HTTP requests.

Reqable is a modern cross-platform project, designed for API development, testing, and debugging. Reqable fully supports HTTP1 and HTTP2 and partially supports HTTP3(QUIC).

Practical and easy-to-use software tool for testing HTTP applications and services.

Native desktop app for Windows supports efficient REST and HTTP API testing, fast performance, low resource use, code snippets, custom methods, import/export, and multilingual UI.

Hurl is a command line tool that runs HTTP requests defined in a simple plain text format. It can capture values, evaluate queries on headers and body response. It is very versatile: it can be used for both fetching data and testing HTTP sessions.

Native API testing tool, supporting HTTP and gRPC protocols, workspaces, environments, request management, various content types, and dark mode.

ArdorQuery is a cross-platform tool for performing any HTTP(S) endpoints like REST API, HTML, Images, GraphQL, OData etc.

Keep your http requests in a single file that lives in your projects repo. This app lets you run your http requests from a .http file and includes features like load testing, pre and post request scripts, and request chaining.

Thunder Client is a hand-crafted lightweight Http Client extension for Visual Studio Code. No separate download needed, Just install the extension from VS Code marketplace.

• Send/Cancel/Rerun HTTP request in editor and view response in a separate pane with syntax highlight

Offline-first web HTTP client.

Kreya is a GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more.

API Tester is the first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android.