URL Encoder/Decoder

Encode or decode URLs for safe transmission and proper formatting. Instantly convert between plain text and URL-encoded format.

Encoding

About URL Encoding & Decoding

URL encoding (percent encoding) is a mechanism for encoding information in a Uniform Resource Identifier (URI). It ensures that data transmitted in URLs is safe and correctly interpreted by web servers and browsers. Characters that are not allowed in URLs, or have special meanings, are replaced with a percent sign (%) followed by two hexadecimal digits representing their ASCII code. URL decoding reverses this process, converting encoded characters back to their original form.

This tool is essential for web developers, marketers, and anyone working with URLs, query strings, or web APIs. It helps prevent errors, security issues, and data corruption caused by unencoded or improperly encoded URLs.

How This Tool Works

The URL Encoder/Decoder uses JavaScript's built-in encodeURIComponent and decodeURIComponent functions. When you enter text and select a mode, the tool instantly encodes or decodes the input. Encoding replaces unsafe characters with percent-encoded values, while decoding restores them to their original form. The tool is fast, accurate, and works entirely in your browser for privacy and security.

Use this tool to prepare URLs for APIs, web forms, redirects, and more. It supports Unicode and special characters, ensuring compatibility across platforms and browsers.

Key Features

  • Instant Encoding/Decoding: Get results as you click, with no delays.
  • Supports All Characters: Handles Unicode, emojis, and special symbols.
  • Copy to Clipboard: Easily copy results for use in your projects.
  • Switch Modes: Toggle between encoding and decoding with one click.
  • Mobile Friendly: Fully responsive for use on any device.
  • Privacy First: All processing happens locally in your browser.
  • Free & Unlimited: No usage limits or registration required.

Common Use Cases

  • Web Development: Encode query parameters, form data, and API requests.
  • SEO & Marketing: Create shareable, error-free URLs for campaigns.
  • Data Processing: Safely transmit data in URLs for analytics and tracking.
  • Security: Prevent XSS and injection attacks by encoding user input.
  • Content Management: Generate valid URLs for files, images, and documents.
  • Testing & Debugging: Decode URLs to inspect and troubleshoot web requests.

Step-by-Step Guide

  1. Enter Your Text: Type or paste the text you want to encode or decode in the input box.
  2. Select Mode: Choose whether to encode or decode using the switch button.
  3. Click Convert: Press the button to see the result instantly.
  4. Copy Result: Use the copy button to copy the output for use elsewhere.
  5. Switch and Repeat: You can switch modes and reuse the output as input for further conversions.

For best results, ensure your input is correct and not already encoded/decoded. If you encounter errors, check for invalid characters or formats.