Advanced API Tester Pro

by Jay Soni · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

A high-performance, lightweight Postman alternative in your browser.

Users

0 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

−1 in 30 days

Store rank

#193K

#162K among extensions

Version

1.2.0

updated 13 Apr 2026

Users

monthly, 6 months

Latest, 16 Oct 2026: 10 usersMove the mouse over the chart for any month

Ratings count

monthly, 6 months

Latest, 16 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Advanced API Tester Pro

Supercharge your API development workflow with Advanced API Tester Pro – the most powerful and lightweight API client built directly for your browser. Designed for developers who need speed and simplicity without sacrificing professional features. Say goodbye to heavy desktop apps and hello to a seamless, high-performance workspace. 🚀 KEY FEATURES: - Unified Smart Input: Paste raw cURL commands or standard URLs into a single field. - Postman Collection Support: Import your existing Postman collections (v2.0/v2.1) with a single click. - Environment Variables: Use {{base_url}} or other variables across URLs, Headers, and Bodies with real-time auto-suggestions. - Professional Body Editor: Features JSON beautification and syntax-focused design. - Persistent Workspace: Your request history and environment variables are automatically saved and synced locally. - Premium UI/UX: High-contrast Dark Mode with Inter and JetBrains Mono typography for a superior developer experience. Perfect for debugging REST APIs, testing webhooks, and managing complex development environments. No account required. No data tracking. Just pure productivity. Stop context-switching between your IDE, browser, and desktop apps. Test faster, build better. --- ADDITIONAL INFO --- Category: Developer Tools Language: English (United States) Mature Content: No Permissions: storage, host_permissions (all_urls)