URL Encoder / Decoder

Encode and decode URL strings online for free. Supports auto-convert mode. Fast, easy, and no installation needed.

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Tips

  • URL encoding converts special characters into a format that can be transmitted over the internet.
  • Spaces become %20, and special characters like & and = become %26 and %3D.
  • Enable Auto Convert to see results instantly as you type.

All processing happens locally in your browser. No data is sent to any server.

Encode and decode URLs online, converting special characters into percent-encoded strings and back for links, query parameters, APIs, and debugging.

Make URL text safe for the web

URL encoding converts spaces, symbols, and non-ASCII characters into a format that can travel safely inside links and query strings.

Decode messy query strings

Paste encoded URLs or parameters to read the original text, inspect redirect links, and debug API requests more easily.

Common Use Cases

  • Encode query parameter values.
  • Decode tracking URLs for inspection.
  • Debug API request strings.
  • Convert special characters in links.

How to Use This Tool

  1. 1Choose encode, decode, or auto-convert mode.
  2. 2Paste your URL text.
  3. 3Review the converted output.
  4. 4Copy the result.

Frequently Asked Questions

What does URL encoding do?

It replaces unsafe characters with percent-encoded values such as %20 for spaces.

When should I encode a URL parameter?

Encode parameter values when they contain spaces, symbols, Unicode text, ampersands, or equals signs.

Is this tool private?

Most processing runs locally in your browser whenever possible, so your files are not uploaded for routine conversions and edits.

Useful For

A few nearby tasks this tool can help with.

Clean up query parametersEncode links before sharingDecode redirect URLsDebug API request strings