What is a PHP cURL POST request?

A PHP cURL POST request is a method to send data to a web server using the cURL library in PHP. It allows you to submit form data, JSON payloads, or other content to APIs and web endpoints programmatically.

How do I test a POST request without writing code?

Use our online tool by entering your endpoint URL, specifying the parameter name, and pasting your payload. Click Send to execute the request and view the response instantly in your browser.

Is my data secure when using this tool?

Yes, all data remains in your browser. No payloads or responses are stored on our servers. The tool operates entirely client-side for maximum privacy and security.

What types of APIs can I test?

You can test any public HTTP or HTTPS endpoint that accepts POST requests, including REST APIs, webhooks, form handlers, and web services. Private and localhost addresses are blocked for security.

Why is my request timing out?

Requests have a 10-second timeout limit. If your endpoint takes longer to respond, the request will fail. This prevents hanging requests and ensures optimal performance for all users.

PHP cURL POST Request Tester

📚 Complete Guide & FAQ

🎯 What This Tool Solves

Testing API endpoints and debugging POST requests often requires writing code or using complex tools. This browser-based solution eliminates that friction, letting you test webhooks, APIs, and form handlers instantly without any setup.

📖 How to Use This Tool

Step 1: Enter Your Endpoint URLPaste the full URL of your API endpoint or webhook. Must start with http:// or https://. Private networks and localhost are blocked for security.

Step 2: Set Parameter Name (Optional)Specify the POST parameter key. Leave empty to use "data" as default. This is the field name that will contain your payload.

Step 3: Add Your PayloadType or paste your request data in the code editor. Line numbers update automatically. Supports any text format: JSON, XML, plain text, etc.

Step 4: Send and AnalyzeClick "Send POST Request" to execute. View the raw response, copy it to clipboard, or open it as HTML in a new tab for rendered preview.

❓ Frequently Asked Questions

What makes this tool different from others?Unlike server-based tools, this operates entirely in your browser. Your sensitive API keys, tokens, and data never touch our servers. It\'s faster, more secure, and respects your privacy.

Can I test authentication-required endpoints?Yes, if your authentication is handled via POST parameters. For header-based auth (like Bearer tokens), you\'ll need to use a different tool or implement a proxy endpoint.

What are the technical limitations?URLs: max 2083 characters. Parameter names: max 64 characters. Payloads: max 10KB. Requests timeout after 10 seconds. These limits ensure optimal performance.

Why can\'t I test localhost or private IPs?For security reasons, requests to private networks (localhost, 127.0.0.1, 192.168.x.x, etc.) are blocked. This prevents potential abuse and protects internal services.

How do I debug CORS issues?This tool makes server-side requests, bypassing browser CORS restrictions. If your API works here but not in browser JavaScript, you likely have a CORS configuration issue.

Is there a rate limit?While there\'s no hard rate limit, excessive usage may be throttled. For high-volume testing, consider using local tools or our API service.

Can I save or share my test configurations?Currently, test data isn\'t persisted. For recurring tests, bookmark the page after filling the form - most browsers will remember form values.

What response formats are supported?Any text-based response: HTML, JSON, XML, plain text, etc. Binary responses will appear as encoded text. Use "Open in New Tab" to render HTML responses.

💡 Need help or have feature requests? Visit our Support Center for assistance, documentation, and community discussions.