Advanced REST Client (ARC) Alternatives

Fiddler

Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler includes a powerful event-based scripting subsystem, and can be extended using any .NET language.

Features:

• HTTP Monitoring
• Debugger
• Monitor HTTP Traffic
• One click installation

Postman

Postman is a tool that facilitates the development and use of APIs. Postman provides all the functionality needed to create or simulate API specifications and use the Postman Collection Runner to create tests.

Features:

• Development API
• REST API
• Api
• API Management
• Google Chrome Extensions
• CI/CD
• Graphical interface
• SOAP API
• Version and Source control

Insomnia REST Client

Debug APIs like a human, not a robot. Insomnia is a simple yet powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.

Features:

• Lightweight
• Request Chaining
• Responsive design
• Separated workspaces
• Support environment variables
• Api
• API Management
• Cloud sync
• Code generation
• Configurable request timeout
• Developer Tools
• Electron based
• GraphQL
• GraphQL integration
• Import Curl commands
• Support for Keyboard Shortcuts
• Image Preview
• REST API
• SSL client certificates
• SVG Editors
• Variables
• Web Development

soapUI

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 completely free tool with a commercial companion, soapUI Pro, with extra functionality for companies with mission critical web services.

HTTP Toolkit

HTTP Toolkit is a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client, with built-in support for modern tools from Docker to Android to GraphQL. Setup with one click to start seeing exactly what your code is sending. Diff requests or responses, and explore overall metrics, to understand in depth. Change live traffic content, and simulate errors or performance problems to test your system.

Features:

• Built in docs
• HTTP mocking
• One click interception
• OpenAPI integration
• Performance analysis
• Themes
• Debugger
• Developer Tools

Runscope

Runscope helps you monitor, log and measure API usage to solve API problems fast. Automatically monitor APIs without any coding. Runscope provides complete logging for all of your API traffic. Track down troublesome API calls with powerful search. Debug problems by peering into the details of every request and response. Works with any public or private API, behind the firewall or in the cloud.

Features:

• Web-Based
• Api
• Backend
• Debugger

HttpRequester

HttpRequester is a tool for Firefox for easily making HTTP requests (GET/PUT/POST/DELETE), viewing the responses, and keeping a history of transactions. This tool is useful when doing web or REST development, or when you need to make HTTP requests that are not easily done via the browser (PUT/POST/DELETE).

Features:

• Debugger
• Firefox Extensions
• REST API
• Web Development

RESTer

A REST client for almost any web service (Firefox and Chrome extension).

Features:

• Api
• API Management
• Google Chrome Extensions
• Firefox Extensions
• Project Organization
• Variables