URL Encoder / Decoder

Safely encode special characters for URLs (Percent-encoding) or decode URL-encoded strings back to plain text.

Input (Plain URL / Text)

Output (Encoded URL)

Key Takeaways & Quick Facts

Primary Purpose

Encode or decode URL parameters and strings.

Execution Environment

100% Client-Side In-Browser (Zero Cloud Uploads)

Standard Verification

Calculations tested against standard benchmarks

How to Use URL Encoder / Decoder

Select "Encode URL" or "Decode URL".
Paste your string into the input box.
The tool will instantly process the string, safely handling all special characters.

How it Works

This uses standard Percent-encoding (URI encoding) specified in RFC 3986. It converts unsafe characters (like spaces, &, =, ?) into a % followed by their hex value, ensuring data can be safely transmitted over the internet.

Frequently Asked Questions

Why do I need to encode URLs?

URLs can only be sent over the Internet using the ASCII character-set. If your URL contains special characters or parameters (like spaces or foreign languages), they must be encoded into valid ASCII format to prevent the web server from misinterpreting the request.

Formula Audited & Client-Side Private

Calculations are verified against standard mathematical and banking benchmarks. Data stays on your device in local memory.

Our Verification Standards →