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URL Encoder/Decoder

Encode or decode URLs online. Convert special characters to URL-safe format.

How to Use URL Encoder/Decoder

1

Enter your text or URL

Paste the text containing special characters you want to encode, or paste an encoded URL string you want to decode.

2

Select encode or decode mode

Choose "Encode" to convert special characters to percent-encoded values, or "Decode" to convert encoded strings back to readable text.

3

Copy the result

Click the copy button to grab the encoded or decoded output and use it in your URLs, API calls, or application code.

About URL Encoder/Decoder

URL encode and decode strings online for free with our URL Encoder/Decoder tool. Convert special characters, spaces, and Unicode text to percent-encoded URL-safe format (%20, %3D, etc.) and back. Essential for web developers building query strings, debugging API request parameters, encoding form data, and handling internationalized URLs. Supports encodeURIComponent and full URI encoding modes. All processing runs entirely in your browser, keeping your data completely private.

Key Features

  • Encode text to URL-safe percent-encoded format instantly
  • Decode URL-encoded strings back to readable plain text
  • Full support for UTF-8, Unicode, and all special characters
  • One-click copy for fast integration into your code or API calls
  • Handles query strings, path segments, and full URL encoding
  • Free and private — all processing happens in your browser

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Frequently Asked Questions

How to URL encode a string online for free?▾
Paste your text into the URL Encoder input, click "Encode", and the tool instantly converts special characters to percent-encoded values like %20 for spaces. Completely free with no signup.
How to decode a URL-encoded string online?▾
Paste the encoded string (containing %20, %3D, etc.) into the input field, select "Decode", and the original readable text appears instantly.
What is URL encoding (percent encoding)?▾
URL encoding replaces unsafe characters with a % sign followed by their hexadecimal ASCII value. For example, space becomes %20, & becomes %26, and = becomes %3D.
When do I need URL encoding?▾
URL encoding is needed when building query strings with special characters, passing user input in URLs, encoding form data for HTTP POST requests, and handling non-ASCII characters in URLs.
What is the difference between encodeURI and encodeURIComponent?▾
encodeURI encodes a full URI but preserves characters like :, /, ?, and &. encodeURIComponent encodes everything except letters, digits, and a few safe characters, ideal for encoding individual query parameter values.
Is this URL encoder safe and private?▾
Yes. All encoding and decoding happens entirely in your browser using JavaScript. Your data is never transmitted to any server, making it safe for API keys and sensitive parameters.
Does it support Unicode and international characters?▾
Yes. The tool correctly handles UTF-8 encoded Unicode characters, including characters from any language, emojis, and special symbols.
How to encode spaces in URLs?▾
Spaces can be encoded as %20 (standard percent encoding) or + (form encoding). Our tool uses %20 by default, which is the correct encoding for URL path segments and query parameters.