developer
Client-Side Only
Free Forever

URL Encoder & Decoder

Encode a string so it can be safely transmitted in a URL.

Loading tool...

Advertisement

Share this tool:

How to use the URL Encoder

Paste a raw string containing special characters (like ?, =, &, spaces). The encoder will convert it into a safe, percent-encoded URI format.

?Frequently Asked Questions

What is the URL Encoder & Decoder?

The URL Encoder & Decoder transforms special characters, spaces, and symbols into percent-encoded URI strings (e.g. %20 for space) and decodes percent sequences back into readable text.

Who is the URL Encoder & Decoder for?

Built for web developers, API engineers, and web scrapers constructing query strings.

How to Use the URL Encoder & Decoder

  1. Select Encode or Decode mode.
  2. Paste text or URL query string.
  3. Copy encoded URI string.

Worked Calculation Example

Encoding 'hello world & good day' converts to 'hello%20world%20%26%20good%20day'.

Frequently Asked Questions

Why do URLs need percent-encoding?

URLs can only contain valid ASCII characters. Unsafe characters like spaces, ampersands, or question marks must be percent-encoded to prevent parsing errors.

Explore Related Utilities & Guides

Related Tools

All Developer Tools

URL Decoder

Decode a URL-encoded string back to its original format.

Base64 Encoder / Decoder

Encode or decode strings to Base64 safely and quickly.

Educational Guides

All Guides

How to Properly Format JSON Payloads for REST APIs

Learn the standard practices for organizing and nesting JSON structures for optimal API transmission and parsing performance.

Understanding Base64 Encoding: A Complete Guide

A deep dive into how binary data is translated into 64 ASCII characters for safe web transport and storage.