Postwoman Alternatives & Competitors

The Collaboration Platform for API Development.

Key Postman features:

User-Friendly Interface Collaboration Comprehensive Testing Tools Extensive API Documentation

Open Source

Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.

Key Insomnia REST features:

User-Friendly Interface Support for Multiple Protocols Environment Management Custom Plugins and Themes

Open Source

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Key Flagsmith features:

Feature Flags Remote Config A/B/X Testing & Optimization Organization Management

Try for free Open Source freemium

Open source API development ecosystem.

Key Hoppscotch features:

User-Friendly Interface Open Source Multi-Platform Support Real-Time Collaboration

Open Source freemium

SoapUI Pro is one of the most prominent API testing platforms around, allowing developers to quickly prototype the functions of their apps and get them to market with little hassle.

Key soapUI features:

Comprehensive Testing User-Friendly Interface Extensive Protocol Support Scripting Capability

Paw is a REST client for Mac.

Key RapidAPI for Mac features:

User Interface Team Collaboration Advanced Request Capabilities Extensions and Plugins

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

Key Advanced REST Client (ARC) features:

User-Friendly Interface Support for Various Protocols Customizable Cross-Platform Compatibility

Are you still manually testing your web APIs? Generate tests for your web APIs in minutes.

Key Humlix features:

Test Suites Automation

free $9.0 / Monthly (One user, unlimited test case generation)

CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.

Key HTTPie features:

User-Friendly Syntax JSON Support Cross-Platform Plugin Support

Open Source

Parasoft SOAtest automates complete end-to-end testing for business and security-critical transactions.

Forum-like in-app community for your mobile app.

Key A-mates features:

User-Friendly Interface Wide Range of Features Customization Options Reliable Customer Support

paid Free Trial $39.0 / Monthly

NativeRest is a native REST API client for Windows, macOS and Linux. NativeRest desktop application is not using Electron, runs fast, uses less memory and CPU.

Key NativeRest features:

High-performance and memory efficient Preconfigured proxy server Simple testing Manage multiple environments

freemium $199.0 / One-off

Download HttpRequester for free.

Hurl is a command line tool that runs HTTP requests defined in a simple plain text format.

Key Hurl.dev features:

Ease of Use Scripting Capabilities Open Source Flexibility

Open Source