REST API Client & Tester Pro
Professional API testing tool with collections, environments, and advanced authentication
Request Builder
Response Viewer
No response yet
Configure your request and click Send to see the response
How to test REST APIs online?
Test REST APIs with our professional API client and tester. Features include collections, environments, authentication, and advanced testing capabilities. Perfect for API development, testing, and integration with comprehensive request/response analysis.
Features
- Complete HTTP methods support (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS)
- Advanced authentication (Bearer, Basic, API Key, OAuth 2.0)
- Request collections and environment variables
- Real-time response formatting and validation
- Request history and performance metrics
- Export/import collections for team collaboration
How to use
- Enter your API endpoint URL in the request builder
- Select HTTP method (GET, POST, PUT, etc.) and configure headers
- Add request body if needed and set up authentication
- Click Send Request to test your API
- View formatted response with headers and timing metrics
- Save requests to collections for easy access and sharing
Tips & Best Practices
- Double-check URLs and hostnames before running network lookups.
- Results may vary based on DNS propagation and network conditions.
- Use this tool for debugging and development, not for production monitoring.
- Some checks may be blocked by firewalls or CORS policies.
- All lookups are performed client-side when possible for privacy.
FAQ
What HTTP methods are supported?
We support all standard HTTP methods: GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS. Each method is optimized for its specific use case.
Can I save my API requests?
Yes. You can save requests to collections and organize them for easy access. Collections can be exported and shared with your team.
How do environment variables work?
Create environments with variables like {{baseUrl}} that get replaced in your requests. Perfect for switching between dev, staging, and production APIs.
What authentication methods are supported?
We support Bearer tokens, Basic authentication, API keys, and OAuth 2.0 flows. All sensitive data is encrypted and stored locally.
Can I test APIs with CORS issues?
Some APIs may have CORS restrictions when testing from browsers. We recommend using browser extensions or server-side testing for production APIs with strict CORS policies.
How do I organize my API requests?
Use collections to group related requests. You can create folders, add descriptions, and even export collections to share with your team.
Can I test APIs with file uploads?
Yes. Use the Form Data body type to upload files. The tool supports multipart/form-data for file uploads.
Is my data secure?
Absolutely. All processing happens locally in your browser. Sensitive authentication data is encrypted before storage. No data is sent to our servers.
Can I import Postman collections?
Currently, we support our own collection format. We're working on Postman import functionality for future releases.
How do I share API requests with my team?
Export collections as JSON files and share them with your team. They can import the collections to access all your saved requests.
What's the difference between environments and collections?
Environments store variables like API URLs and keys that can be reused across requests. Collections organize related requests together for easy management.
Can I test GraphQL APIs?
Yes. You can test GraphQL APIs by sending POST requests with GraphQL queries in the request body. Set Content-Type to application/json.