Best IntelliJ IDEA Extension Products in 2025

Next-gen API development collaboration platform. More than just API design, debug, test, load-testing, and mock.

Clear, Fast & Unlimited. Residential & Mobile Proxies For Best Price.

Key ASocks features:

HTTP Socks5 ASN targeting Pay as you go

Try for free paid Free Trial $3.0 (3$ per 1 Gb)

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

Swagger UI is a dependency-free collection of HTML, Javascript, and CSS assets that dynamically generate beautiful documentation from a Swag.

Key Swagger UI features:

Interactive API Documentation Automated Documentation Generation Standardization Comprehensive Testing

Bruno is a Git-integrated, fully offline, and open-source API client.

Key Bruno features:

User-Friendly Interface Comprehensive Feature Set Regular Updates Strong Customer Support

Rest API client for VS Code, lightweight Postman alternative.

Key Thunder Client features:

User-Friendly Interface VS Code Integration Lightweight Environment Variables