API Tester Studio

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About this app

API Tester Studio is a lightweight, premium native mobile alternative to Postman, handcrafted for developers, QA engineers, and tech enthusiasts. Seamlessly test REST APIs, manage mock servers offline, analyze request histories, and utility-format JSON data directly from your mobile device.

KEY FEATURES:

🚀 Premium REST HTTP Client

Full Method Support: Perform GET, POST, PUT, DELETE, PATCH, and HEAD requests with ease.
Header & Parameter Editor: Easily add and edit HTTP headers, URL query parameters, and Raw JSON request bodies.
Environment Variables: Define and auto-resolve custom environment variables (e.g., {{host}} placeholders) in real-time.
🔄 Offline Mock Server

Zero-CORS Interceptor: Register local API routes (e.g., POST /api/login) that return custom JSON payloads, status codes, and custom artificial response delays.
Instant Testing: Test your local mock routes inside the client with a single tap.
📊 Client-Side Request Analytics

Dashboard Statistics: Track total API requests, average latency, and success/failure rates.
Visual Charts: Dive into request method distributions and response code breakdowns using clean, interactive progress charts.
💻 Developer Utility Suite

Code Snippet Generator: Instantly convert HTTP requests into ready-to-use code snippets for cURL, Flutter/Dart (Http), and JavaScript (Fetch).
JSON Workbench: Format, minify, and validate JSON payloads with syntax highlighting and live parser validation alerts.
Backup & Sync: Quickly import or export mock configurations and histories via clipboard sharing.
✨ Elegant Glassmorphism Design Enjoy a smooth, state-of-the-art developer interface featuring beautiful glassmorphic visual layouts, clean animations, and a cohesive theme designed to reduce eye strain.

Download API Tester Studio today and simplify your mobile API testing workflow!

Disclaimer & Limitation of Liability
This application is provided strictly for educational use, authorized security research, database analysis, and domain auditing. It must not be used for any unauthorized or unlawful activity.

The developer expressly disclaims all liability for any misuse, unauthorized access, data loss, corruption, network disruption, security breach, or legal consequences arising from the use of this tool. Users are solely responsible for ensuring proper authorization before accessing or scanning any database, system, or domain.

Use of this application for penetration testing, hacking, or exploitation without explicit consent is strictly prohibited. By downloading and using this software, you agree to comply with all applicable local, national, and international laws, as well as relevant data protection regulations and cybersecurity standards.

The developer shall not be liable for any direct, indirect, incidental, or consequential damages resulting from the use, misuse, or inability to use this application. All responsibility rests with the end user.
A premium mobile API client to test REST requests, mock servers & format JSON.
Updated on
Sep 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App activity, App info and performance, and Device or other IDs
  • This app may collect these data types
    App activity, App info and performance, and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

What's New in this Version:
• Added Postman Collection Importer & JSONPath Evaluator.
• Added Mock Server Traffic Logs & expanded code snippet generation (Python, Go, Swift, Java).
• General UI/UX improvements, including larger URL input bar and light/dark theme fixes.
Content rating
Everyone
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App support

Phone number
+923002170360
About the developer
Muhammad Sunny
sunny.sharfuddin@gmail.com
Pakistan

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