ApiLab: REST API Client Tester

Screenshots

About ApiLab: REST API Client Tester

ApiLab is a powerful REST API testing tool built for Android developers,

testers, and security researchers. Whether you're building a backend,

debugging endpoints, or testing HTTP responses on the go — ApiLab has

everything you need in one app.

KEY FEATURES

API REQUEST TESTING

• Support for GET, POST, PUT, PATCH, DELETE, HEAD and OPTIONS methods
• Add custom HTTP headers with key-value pairs
• Send JSON request body with your API calls
• View formatted, pretty-printed JSON responses
• See HTTP status codes and response time in milliseconds
• Inspect full response headers returned by the server

FILE UPLOAD SUPPORT

• Upload files directly to any API endpoint
• Multipart/form-data file upload support
• Test file upload endpoints without a desktop computer
• Perfect for testing media upload APIs on the go

ENCODE & DECODE STRINGS

• Encode any string to Base64 instantly
• Decode Base64 strings back to plain text
• Encrypt strings with AES-CBC or AES-GCM mode
• Password-protected encryption for sensitive data
• Perfect for testing Authorization headers and tokens

RESPONSE INSPECTOR

• View full response body with JSON formatting
• Inspect all response headers returned by the server
• Copy response body to clipboard with one tap
• Color-coded status codes (green/red/orange)
• Response time shown in milliseconds

⚡ BUILT FOR DEVELOPERS

• Clean, minimal dark-themed UI
• No login or account required
• Lightweight and fast
• Works on any Android device

SECURITY FEATURES

• AES-CBC encryption with PKCS5 padding
• AES-GCM authenticated encryption
• SHA-256 key derivation
• Base64 encoding and decoding
• Password-protected string encryption

WHO IS APILAB FOR?

✅ Android & mobile developers

✅ Backend & API developers

✅ QA testers & quality engineers

✅ Security researchers

✅ Students learning REST APIs

✅ Anyone who needs Postman on their phone

WHY APILAB?

Unlike desktop tools like Postman or Insomnia, ApiLab runs entirely

on your Android device. Test your APIs anywhere — no laptop needed.

With built-in encryption and file upload support, ApiLab goes beyond

basic API testing to give you a complete HTTP toolkit in your pocket.

PERMISSIONS USED

• Internet — required to send HTTP requests
• Storage — required for file upload feature

ApiLab is free to use. No account. Just install and start testing.

Information

Frequently Asked Questions