URL Encoder / Decoder
Quickly encode URLs with percent-encoding or decode encoded URLs back to readable format. Perfect for working with query parameters, API endpoints, and web addresses.
Why use this tool?
URL encoding is essential for creating valid web addresses that work across all browsers and systems. This tool makes it easy to handle special characters, spaces, and non-ASCII text in your URLs.
- Instant encoding/decoding — Get results with a single click.
- Unicode support — Properly handles international characters and emojis.
- Private — All processing happens in your browser. Nothing is uploaded.
- Beginner-friendly — Clear error messages if decoding fails.
How to use
- Type or paste your URL or text into the input field.
- Click Encode to convert to percent-encoded format, or Decode to convert back to readable text.
- The result appears in the output field below.
- Click Copy Result to copy it to your clipboard.
Frequently Asked Questions
URL encoding (also called percent-encoding) is a method to encode special characters in URLs. It replaces unsafe ASCII characters with a '%' followed by two hexadecimal digits. This ensures URLs work correctly across different systems.
URLs can only contain certain characters from the ASCII character set. Special characters like spaces, ampersands, and non-ASCII characters must be encoded to ensure the URL works properly in browsers and APIs.
Yes. All encoding and decoding happens entirely in your browser. Your URLs are never sent to any server or stored anywhere.
encodeURI is used for encoding complete URLs and preserves reserved characters like : / ? #. encodeURIComponent is for encoding individual URL parameters and encodes all special characters including reserved ones.