Best NativeRest Alternatives & Competitors in 2025

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

Monitor all your cloud services with our status page aggregator. IT teams choose IsDown to monitor all their vendors and get alerts whenever an outage occurs. Integration with Datadog, PagerDuty, Slack, Microsoft Teams, and a lot more.

Key IsDown.app features:

Status Dashboard Multiple Profiles for same account Slack App Zapier Integration

Try for free paid Free Trial $37.0 / Monthly (Pro)

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

Open source API development ecosystem.

Key Hoppscotch features:

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

Open Source freemium

HttpMaster is a professional software tool for testing and debugging HTTP applications, primarily aimed at REST API applications and web services.

Key HttpMaster features:

HttpMaster project to store complete definition of API calls in one single place Broad set of http properties Dynamic parameters to simulate variations of input data or create global API values Response data validation with logical expressions

freemium

Paw is a REST client for Mac.

Key RapidAPI for Mac features:

User Interface Team Collaboration Advanced Request Capabilities Extensions and Plugins

Rest API client for VS Code, lightweight Postman alternative.

Key Thunder Client features:

User-Friendly Interface VS Code Integration Lightweight Environment Variables

Log, monitor and measure your API usage to solve API problems fast.

Key Runscope features:

Ease of Use Comprehensive API Testing Automated Testing Detailed Reporting

cURL is a computer software project providing a library and command-line tool for transferring data...

Key cURL features:

Versatility Cross-Platform Command-Line Usage Automation

Open Source

Open source type-safe Postman alternative.

Key RecipeUI features:

User-Friendly Interface Cross-Platform Compatibility Comprehensive Recipe Management Integration with External Tools

Open Source

Nightingale is a fast, resource-efficient, and full-fledged REST API client for Windows 10.

Easy mocking of any system you integrate with via HTTP or HTTPS.

Key MockServer features:

Flexibility Scriptable Expectations Ease of Integration Extensive Documentation

Open Source

Bearer is an open source, fast and accurate static application security testing (SAST) tool that analyze your source code to discover, filter and prioritize security and privacy risks.

Key Bearer features:

Security Ease of Use Monitoring and Analytics Compliance Support

Open Source freemium