API Tester Pro

by Indri Fazliji · api-tester-pro.vercel.app · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

A professional API testing tool

Users

−4 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#157K

#131K among extensions

Version

1.0.0

updated 4 Jun 2025

Users

monthly, 17 months

Latest, 16 Oct 2026: 18 usersMove the mouse over the chart for any month

Ratings count

monthly, 17 months

Latest, 16 Oct 2026: 0 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 API Tester Pro

🚀 **API Tester Pro** is a lightweight yet powerful REST API client built right into your browser. Perfect for developers, testers, and anyone working with web services. 🔹 **Features:** ✔️ Supports **GET, POST, PUT, DELETE, PATCH** methods ✔️ Custom **headers** management ✔️ **JSON** request body editor with syntax highlighting ✔️ **Authentication** (Basic Auth, Bearer Token, API Key) ✔️ **Response** viewer with formatting & copy options ✔️ **Request history** with local storage 🔹 **Why use API Tester Pro?** ✅ No need for standalone apps like Postman ✅ Fast, lightweight, and privacy-focused (no telemetry) ✅ Perfect for quick API debugging 📌 **Works with:** JSON APIs, GraphQL (via POST), and any HTTP-based service.