URL Encoder & Decoder – Free Online URL Conversion Tool

Input

Encoding Mode
Path Encoding: Encodes spaces as %20, suitable for URL paths and general encoding
0 characters

Output

Result 

                

                    0 characters
                

            

            
            

                
            

        

    

    
    

        
        
    



    

    
    
    

      

        

          

            
Manage URL Characters Safely and Efficiently



The URL Encoder & Decoder by AllFileTools is an essential utility for web developers, SEO specialists, and API testers. URLs can only be sent over the Internet using the ASCII character set. Since URLs often contain characters outside this set, they must be converted into a valid format. Our tool provides a seamless way to percent-encode reserved characters or decode complex query strings back into human-readable text.



What is URL Encoding (Percent-Encoding)?



URL encoding, also known as percent-encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI). Characters that are not allowed in a URL must be replaced by a % followed by two hexadecimal digits.



    
	
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    Standard Encoding: Spaces become %20.
    
	
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    Query/Form Encoding: Spaces become +.
    
	
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Why Use This Online URL Tool?



    
	
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    API Integration: Properly encode query parameters to ensure your GET requests don't break due to special characters like &, ?, or #.
    
	
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    SEO & UX: Decode "ugly" URLs from search engine results to see the actual keywords and path structure.
    
	
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    Link Building: Ensure that shared links containing non-ASCII characters (like accents or symbols) work across all browsers and platforms.
    
	
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    Data Integrity: Prevent web servers from misinterpreting reserved characters in your data strings.
    
	
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How to Use the URL Converter



    
	
  1. 
	
    Select Mode: Toggle between Encoder (Plain → Encoded) and Decoder (Encoded → Plain).
    
	
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    Choose Style (Encode Mode): Select Path Encoding for standard URLs or Query Encoding if you are preparing data for a search query or form submission.
    
	
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    Input & Convert: Paste your text. The tool provides a Real-Time Character Counter to help you stay within URL length limits.
    
	
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    Copy & Export: Use the one-click Copy Result button to grab your output instantly with visual feedback.
    
	
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Key Features & Technical Capabilities



    
	
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    Dual Encoding Support: Choose between %20 or + styles. Our tool uses Python's robust quote() and quote_plus() logic in the backend for 100% accuracy.
    
	
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    Intelligent Auto-Decoding: You don't need to know which encoding was used. Our decoder automatically detects and handles both %20 and + formats to restore your text perfectly.
    
	
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    Security-First Processing: We use textContent rendering to prevent any HTML injection, ensuring that even if you decode malicious scripts, they won't execute in your browser.
    
	
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    Batch Performance: Our tool is optimized for speed, featuring a Loading State Indicator and button debouncing to prevent duplicate server requests.
    
	
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What Makes This Tool Unique?



    
	
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    Smart UI Context: Encoding options are only shown when you need them. Once you switch to Decoder Mode, the interface cleans itself up to focus on the task at hand.
    
	
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    Zero Configuration: No need to install complicated libraries. Perform "Percent Encoding" directly from any device, whether you're on a desktop or mobile.
    
	
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    Privacy & Encryption: All data is transmitted via SSL/TLS. We process the conversion and clear it from the session immediately.
    
	
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URL Encoder & Decoder Frequently Asked Questions

        
Common questions about encoding and decoding URLs online.

      


      

        
        

          
          

            

              
Encoding options are only relevant when converting text into encoded format. Since decoding automatically handles both encoding styles, the tool hides encoding options in Decoder mode.

            

          

        

        
        

          
          

            

              
No. When decoding, the tool automatically detects whether the encoded text uses %20 or + for spaces and applies the correct decoding method internally.

            

          

        

        
        

          
          

            

              
If the decoding process fails or the text is not a valid encoded string, the backend returns an error and the tool displays an error notification instead of showing incorrect output.

            

          

        

        
        

          
          

            

              
While the conversion is in progress, the Convert button is disabled and shows a loading indicator. This prevents duplicate requests and ensures a single response is processed at a time.

            

          

        

        
        

          
          

            

              
No. The way spaces are encoded depends on the selected encoding type:



    
	
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    Path Encoding treats spaces differently than Query Encoding.
    
	The tool applies the correct method internally based on the selected option.
    
	
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Character counters are updated on every input change, result update, and clear action to always reflect the current state of the tool.

            

          

        

        
      

    

    
  


  
  

    
    

    
    
    

      

        
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