URL Encoder/Decoder

Encode or decode URLs and query strings.

100% Private - Your text never leaves your browser
0 chars · 0 lines
0 chars · 0 lines
Mode:

About URL Encoder/Decoder

URL encode special characters for safe URLs or decode encoded URLs. This free online tool processes your text instantly in your browser - no data is ever sent to any server, ensuring complete privacy.

How to Use URL Encoder/Decoder

  1. Paste or type your text in the input field on the left
  2. The result appears automatically in the output field
  3. Adjust any options below the text fields if available
  4. Click "Copy Result" to copy the output to your clipboard
  5. Use "Download" to save the result as a text file

Features

  • 100% Free - No registration required
  • Instant processing as you type
  • Complete privacy - works offline
  • No file size limits
  • Works on all devices
  • Download results as text file

Why Use Our URL Encoder/Decoder?

Unlike other online tools that require uploads or send your data to servers, our url encoder/decoder runs entirely in your browser using JavaScript. This means your sensitive text never leaves your computer, making it perfect for processing confidential documents, personal information, or any text you want to keep private. The tool is also lightning-fast since there's no network latency involved.

When to Use This Tool

Query String Parameters

Encode values in URL parameters to handle spaces, ampersands, and special characters safely.

SEO-Friendly URLs

Create clean URLs by encoding spaces and special characters in article titles or product names.

Form Data Submission

Encode form values before submitting via GET requests to prevent data corruption.

Debugging Web Applications

Decode URL parameters from browser address bar to understand the actual values being passed.

Examples

Spaces and Special Characters

Hello World & Friends
Hello%20World%20%26%20Friends

💡 Spaces become %20, ampersand becomes %26

Email in URL Parameter

user%40example.com

💡 @ symbol is encoded as %40 for safe URL usage

Full URL with Query

search term: coffee & tea
search%20term%3A%20coffee%20%26%20tea

💡 All special characters are percent-encoded

Common Mistakes to Avoid

⚠️

Double encoding URLs

Solution: Only encode user input once. Encoding already-encoded URLs creates invalid results.

⚠️

Encoding the entire URL including protocol

Solution: Only encode the query string values, not http:// or domain names.

⚠️

Using + instead of %20 for spaces

Solution: While + works in some contexts, %20 is the proper URL encoding for spaces.

Related Tools

View all tools