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SECURITY & ENCODERS

URL Encoder & Decoder

Free online URL encoder and decoder. Convert query strings and special characters into percent-encoded RFC 3986 format and back.

100% Client-Side Fast Private & Secure Free In-Browser Tool All Tools
About URL Encoder

What is URL Encoder & Decoder & How Does It Work?

The TutorialsHub URL Encoder & Decoder converts special characters and symbols in query parameters into standard percent-encoded format (`%20`, `%26`, `%3F`), ensuring safe data transmission across web requests, REST APIs, and HTTP URLs.

100% Privacy & Security Guarantee

All operations execute locally inside your browser engine using JavaScript. Your confidential code, JSON datasets, tokens, and credentials are never stored, logged, or transmitted across external servers.

Key Features & Capabilities

Standard RFC 3986 / URI Component encoding and decoding
Safely encodes special symbols, spaces, ampersands, and unicode characters
Instant decoding of complex percent-encoded strings and API URLs
Handles malformed URI strings with clear error feedback
100% client-side execution with one-click clipboard copying

How to Use URL Encoder & Decoder (Step-by-Step Guide)

1
Enter URL

Type or paste your web address, API endpoint, or query string into the input box.

2
Encode or Decode

Click "URL Encode" to percent-encode special characters, or "URL Decode" to convert back to plain text.

3
Review Output

Inspect the converted URL string in the output box.

4
Copy Result

Click "Copy Output" to paste the URL into your HTTP client or code.

Frequently Asked Questions

URLs can only be transmitted over the Internet using the ASCII character-set. Non-ASCII characters and reserved symbols like `?`, `&`, and spaces must be percent-encoded to prevent syntax ambiguity.

`encodeURI` preserves complete URL structure (like protocol and slashes), while `encodeURIComponent` encodes all characters including slashes for query string parameters.
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