URL Encoder & Decoder - Percent Encoding Tool

A URL encoder/decoder converts characters into percent-encoded form so they travel safely inside links. It also reverses the process, turning encoded strings back into readable text. Use it to fix broken query strings, handle spaces and special characters, or inspect redirects without writing code.

1. Paste text or a URL: Add the string you need to encode, or paste an encoded URL to decode.
2. Choose action: Select Encode to percent-encode or Decode to make it readable.
3. Get results: See the output instantly. Copy it or download a text file for logs or code.

• Prevent broken links: Encode spaces, symbols, and UTF-8 characters so links stay intact.
• Debug redirects: Decode long redirect URLs to inspect parameters quickly.
• Stay private: Everything runs in your browser; no URLs are stored or sent.

Use case 1: Email and chat links

Encode special characters before sending links through email clients that break on spaces.

Use case 2: API query strings

Encode parameters like JSON snippets before attaching them to GET requests.

Use case 3: Log analysis

Decode logged redirect URLs to read campaign or user identifiers clearly.

Basic example

Input (encode): https://example.com/search?query=red shoes&size=8
Output: https://example.com/search?query=red%20shoes&size=8

Advanced example

Input (decode): https%3A%2F%2Fshop.com%2F%3Ftag%3Dsummer%26coupon%3Dsave%252010
Output: https://shop.com/?tag=summer&coupon=save%2010

Double encoding

If text appears with %2520 instead of %20, it was encoded twice. Decode once, then re-encode correctly.

Wrong character set

This tool uses UTF-8. If characters still look off, ensure the source text is UTF-8 before encoding.

• Encode only parameter values, not the whole URL, to avoid hiding path separators.
• For forms, trim whitespace before encoding to prevent trailing %20.
• Combine with the Base64 encoder/decoder when embedding binary data in URLs.

• Format query payloads with the JSON formatter.
• Clean up config strings using the XML formatter or YAML formatter.

Encoding and decoding happen locally in your browser. No URLs or text are sent or stored.