HTTP Status Codes
Complete reference of HTTP response status codes.
Server received request headers, client should send body
Server is switching protocols as requested
Request succeeded
Resource created successfully
Success but no content to return
Resource permanently moved to new URL
Resource temporarily moved
Resource not modified since last request
Temporary redirect, preserve method
Permanent redirect, preserve method
Server cannot process the request
Authentication required
Server refuses to authorize
Resource not found
HTTP method not allowed for this resource
Server timed out waiting for request
Request conflicts with current state
Resource permanently removed
Request body exceeds server limit
Media format not supported
Request well-formed but semantically invalid
Rate limit exceeded
Server encountered an error
Invalid response from upstream server
Server temporarily unavailable
Upstream server timed out
How to Use HTTP Status Codes
- Paste your code or data into the input field
- Choose the operation you want to perform
- View the formatted, validated, or transformed output
- Copy the result or download if available
Why Use HTTP Status Codes?
Developer tools on FreeTools.one are designed to replace the dozen browser tabs you'd otherwise need. JSON formatting, regex testing, JWT decoding, SQL formatting, diff checking — everything runs in your browser with zero configuration. There's nothing to install, no CLI to learn, no Docker containers to spin up. Each tool provides professional-grade output with syntax highlighting, error detection, and one-click copy. Your code and data never leave your device because all processing happens client-side. These tools are built by developers, for developers, with the exact features you need: customizable indentation, multiple output formats, real-time validation, and keyboard shortcuts. They're fast enough for quick checks during coding sessions and powerful enough for production data transformation.
- No installation needed — works directly in your browser
- Client-side processing keeps your code private
- Professional-grade formatting and validation
- Save hours of manual coding and debugging
Frequently Asked Questions
Is my code sent to a server?
No. All processing happens in your browser. Your code never leaves your device.
Does it support syntax highlighting?
Yes. Output is displayed with proper formatting for easy reading.
Can I use this for production code?
Absolutely. The output is clean and ready for production use.