HttpNinja: REST API Client

Test REST APIs instantly with HttpNinja – a fast and powerful API tester.

Looking for a Postman alternative on Android? HttpNinja is a complete REST API client and HTTP testing tool that lets you send requests, automate workflows, and generate code – all in one app.

Perfect for developers, QA engineers, and students who need a reliable API testing app anytime, anywhere.

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WHY HTTPNINJA?

✓ Free and powerful API testing tool
✓ Code generator for 14 languages
✓ OAuth 2.0, JWT & AWS authentication support
✓ Workflow automation with retry logic
✓ Built-in mock server & WebSocket testing
✓ 50+ test data generator types
✓ Works offline
✓ Privacy-focused (no tracking)

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KEY FEATURES

CODE GENERATOR
Generate production-ready code instantly in Python, JavaScript, TypeScript, Kotlin, Java, Go, Swift, C#, PHP, Ruby, Rust, Dart, and cURL.

WORKFLOW AUTOMATION
Chain requests, extract and reuse data, and automate API workflows with built-in templates.

AUTHENTICATION
Supports OAuth 2.0 (all grant types), JWT generation, and AWS Signature V4.

TESTING & MOCK
Includes assertions, test suites, mock server, WebSocket testing, and performance testing tools.

VARIABLES & DATA
Use global, environment, collection, and local variables with dynamic values like timestamps and UUIDs.

DOCUMENTATION
Generate Markdown, HTML, and OpenAPI 3.0 documentation. Export to Postman collections.

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CORE FEATURES

• All HTTP methods (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS)
• Request builder with headers, params, and body
• JSON viewer with syntax highlighting
• Collections and request organization
• Import/export via JSON and QR code
• Request history and search
• Dark and light theme (Material Design 3)
• Tablet support and split screen

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PRIVACY

HttpNinja is designed with privacy in mind:
• Works fully offline
• No tracking or telemetry
• All data stays on your device
• No cloud sync required

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PERFECT FOR

• Developers and backend engineers
• QA testers and DevOps
• Students learning API development
• Startups and small teams
• Anyone looking for a mobile API testing tool

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USE CASES

• Test REST APIs
• Generate code in multiple languages
• Automate workflows
• Test OAuth and JWT authentication
• Mock backend services
• Learn API and HTTP concepts

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Download HttpNinja today and test APIs anytime, anywhere.

No subscription. No limits. Just powerful API testing on your device.

Support: imran90237@gmail.com

Recent changes:
Compliance update for Google Play Billing. Improved voluntary donation system with smart skip logic for supporters. Fixed a critical crash when saving to large collections. General performance and stability improvements.